./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float12.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/float12.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 748862a4a10e7eb5031b0856b76be837613208b8 ..................................................................................................................................................................................................................................... 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/float12.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 748862a4a10e7eb5031b0856b76be837613208b8 ................................................................................................................................................................................................................................................................................ 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 21:35:04,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:35:04,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:35:04,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:35:04,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:35:04,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:35:04,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:35:04,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:35:04,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:35:04,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:35:04,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:35:04,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:35:04,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:35:04,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:35:04,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:35:04,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:35:04,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:35:04,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:35:04,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:35:04,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:35:04,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:35:04,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:35:04,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:35:04,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:35:04,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:35:04,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:35:04,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:35:04,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:35:04,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:35:04,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:35:04,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:35:04,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:35:04,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:35:04,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:35:04,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:35:04,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:35:04,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:35:04,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:35:04,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:35:04,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:35:04,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:35:04,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:35:04,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:35:04,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:35:04,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:35:04,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:35:04,982 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:35:04,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:35:04,983 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:35:04,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:35:04,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:35:04,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:35:04,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:35:04,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:35:04,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:35:04,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:35:04,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:35:04,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:35:04,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:35:04,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:35:04,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:35:04,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:35:04,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:35:04,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:04,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:35:04,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:35:04,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:35:04,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:35:04,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:35:04,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:35:04,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:35:04,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2020-10-25 21:35:05,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:35:05,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:35:05,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:35:05,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:35:05,484 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:35:05,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-10-25 21:35:05,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed49e1d42/f7c0a727d6d94d7ca194789604bb51e4/FLAG6996d6711 [2020-10-25 21:35:06,159 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:35:06,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-10-25 21:35:06,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed49e1d42/f7c0a727d6d94d7ca194789604bb51e4/FLAG6996d6711 [2020-10-25 21:35:06,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed49e1d42/f7c0a727d6d94d7ca194789604bb51e4 [2020-10-25 21:35:06,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:35:06,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:35:06,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:06,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:35:06,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:35:06,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6a8e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06, skipping insertion in model container [2020-10-25 21:35:06,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:35:06,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:35:06,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:06,873 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:35:06,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:06,915 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:35:06,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06 WrapperNode [2020-10-25 21:35:06,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:06,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:06,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:35:06,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:35:06,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:06,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:35:06,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:35:06,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:35:06,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:06,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (1/1) ... [2020-10-25 21:35:07,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:35:07,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:35:07,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:35:07,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:35:07,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (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 21:35:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:35:07,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:35:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:35:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:35:07,302 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:35:07,302 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-25 21:35:07,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:07 BoogieIcfgContainer [2020-10-25 21:35:07,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:35:07,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:35:07,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:35:07,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:35:07,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:35:06" (1/3) ... [2020-10-25 21:35:07,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da7a2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:07, skipping insertion in model container [2020-10-25 21:35:07,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:06" (2/3) ... [2020-10-25 21:35:07,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da7a2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:07, skipping insertion in model container [2020-10-25 21:35:07,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:07" (3/3) ... [2020-10-25 21:35:07,316 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2020-10-25 21:35:07,330 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:35:07,335 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:35:07,354 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:35:07,414 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:35:07,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:35:07,417 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:35:07,418 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:35:07,418 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:35:07,418 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:35:07,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:35:07,418 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:35:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-25 21:35:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-25 21:35:07,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:07,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-25 21:35:07,456 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:07,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:07,465 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2020-10-25 21:35:07,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:35:07,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421873377] [2020-10-25 21:35:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:35:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:35:07,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:35:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:35:07,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:35:07,731 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:35:07,732 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:35:07,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:35:07,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:35:07 BoogieIcfgContainer [2020-10-25 21:35:07,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:35:07,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:35:07,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:35:07,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:35:07,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:07" (3/4) ... [2020-10-25 21:35:07,767 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:35:07,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:35:07,770 INFO L168 Benchmark]: Toolchain (without parser) took 1222.00 ms. Allocated memory is still 50.3 MB. Free memory was 27.6 MB in the beginning and 30.7 MB in the end (delta: -3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:07,772 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 41.9 MB. Free memory was 20.0 MB in the beginning and 19.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:07,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.53 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 29.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:07,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.38 ms. Allocated memory is still 50.3 MB. Free memory was 29.3 MB in the beginning and 28.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:07,775 INFO L168 Benchmark]: Boogie Preprocessor took 36.34 ms. Allocated memory is still 50.3 MB. Free memory was 28.0 MB in the beginning and 27.0 MB in the end (delta: 999.5 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:07,776 INFO L168 Benchmark]: RCFGBuilder took 299.56 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 28.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:07,777 INFO L168 Benchmark]: TraceAbstraction took 453.83 ms. Allocated memory is still 50.3 MB. Free memory was 28.1 MB in the beginning and 30.9 MB in the end (delta: -2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:07,778 INFO L168 Benchmark]: Witness Printer took 6.25 ms. Allocated memory is still 50.3 MB. Free memory was 30.9 MB in the beginning and 30.7 MB in the end (delta: 241.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:07,783 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 41.9 MB. Free memory was 20.0 MB in the beginning and 19.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 360.53 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 29.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.38 ms. Allocated memory is still 50.3 MB. Free memory was 29.3 MB in the beginning and 28.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.34 ms. Allocated memory is still 50.3 MB. Free memory was 28.0 MB in the beginning and 27.0 MB in the end (delta: 999.5 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 299.56 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 28.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 453.83 ms. Allocated memory is still 50.3 MB. Free memory was 28.1 MB in the beginning and 30.9 MB in the end (delta: -2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.25 ms. Allocated memory is still 50.3 MB. Free memory was 30.9 MB in the beginning and 30.7 MB in the end (delta: 241.4 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 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L8] float f = __VERIFIER_nondet_float(); [L9] double d; [L10] unsigned char x = __VERIFIER_nondet_uchar(); [L12] d=f [L14] COND TRUE f==x [L15] COND TRUE !(d==x) [L3] __assert_fail("0", "float12.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: 0.3s, 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, 5 NumberOfCodeBlocks, 5 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 21:35:10,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:35:10,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:35:10,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:35:10,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:35:10,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:35:10,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:35:10,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:35:10,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:35:10,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:35:10,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:35:10,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:35:10,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:35:10,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:35:10,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:35:10,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:35:10,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:35:10,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:35:10,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:35:10,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:35:10,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:35:10,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:35:10,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:35:10,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:35:10,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:35:10,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:35:10,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:35:10,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:35:10,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:35:10,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:35:10,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:35:10,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:35:10,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:35:10,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:35:10,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:35:10,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:35:10,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:35:10,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:35:10,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:35:10,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:35:10,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:35:10,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:35:10,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:35:10,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:35:10,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:35:10,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:35:10,537 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:35:10,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:35:10,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:35:10,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:35:10,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:35:10,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:35:10,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:35:10,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:35:10,540 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:35:10,540 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:35:10,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:35:10,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:35:10,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:35:10,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:35:10,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:35:10,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:35:10,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:35:10,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:35:10,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:10,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:35:10,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:35:10,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:35:10,544 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:35:10,544 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:35:10,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:35:10,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:35:10,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:35:10,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2020-10-25 21:35:11,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:35:11,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:35:11,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:35:11,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:35:11,045 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:35:11,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-10-25 21:35:11,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388f086c5/5f137d97452d4efa984dba52c959d00c/FLAG8be23adc5 [2020-10-25 21:35:11,799 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:35:11,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c [2020-10-25 21:35:11,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388f086c5/5f137d97452d4efa984dba52c959d00c/FLAG8be23adc5 [2020-10-25 21:35:12,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388f086c5/5f137d97452d4efa984dba52c959d00c [2020-10-25 21:35:12,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:35:12,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:35:12,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:12,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:35:12,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:35:12,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@751edcad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12, skipping insertion in model container [2020-10-25 21:35:12,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:35:12,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:35:12,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:12,529 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:35:12,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:12,564 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:35:12,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12 WrapperNode [2020-10-25 21:35:12,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:12,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:12,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:35:12,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:35:12,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:12,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:35:12,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:35:12,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:35:12,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (1/1) ... [2020-10-25 21:35:12,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:35:12,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:35:12,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:35:12,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:35:12,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (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 21:35:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:35:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:35:12,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:35:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:35:13,024 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:35:13,024 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-25 21:35:13,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:13 BoogieIcfgContainer [2020-10-25 21:35:13,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:35:13,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:35:13,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:35:13,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:35:13,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:35:12" (1/3) ... [2020-10-25 21:35:13,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0d7b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:13, skipping insertion in model container [2020-10-25 21:35:13,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:12" (2/3) ... [2020-10-25 21:35:13,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0d7b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:13, skipping insertion in model container [2020-10-25 21:35:13,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:13" (3/3) ... [2020-10-25 21:35:13,035 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2020-10-25 21:35:13,045 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:35:13,050 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:35:13,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:35:13,089 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:35:13,089 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:35:13,089 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:35:13,089 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:35:13,090 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:35:13,090 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:35:13,090 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:35:13,090 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:35:13,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-25 21:35:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-25 21:35:13,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:13,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-25 21:35:13,109 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:13,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:13,115 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2020-10-25 21:35:13,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:35:13,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088385679] [2020-10-25 21:35:13,129 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 21:35:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:35:13,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 21:35:13,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:35:13,716 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-10-25 21:35:14,364 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-10-25 21:35:14,576 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 21:35:14,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:35:16,408 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 21:35:16,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088385679] [2020-10-25 21:35:16,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:35:16,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-25 21:35:16,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495090983] [2020-10-25 21:35:16,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 21:35:16,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:35:16,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 21:35:16,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 21:35:16,437 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-25 21:35:20,581 WARN L193 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2020-10-25 21:35:20,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:35:20,968 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-25 21:35:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 21:35:20,983 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-25 21:35:20,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:35:20,995 INFO L225 Difference]: With dead ends: 16 [2020-10-25 21:35:20,995 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:35:20,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-25 21:35:21,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:35:21,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:35:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:35:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:35:21,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-10-25 21:35:21,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:35:21,030 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:35:21,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 21:35:21,031 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:35:21,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:35:21,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:35:21,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:35:21,257 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:35:21,258 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:35:21,258 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:35:21,258 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:35:21,258 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:35:21,259 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-25 21:35:21,259 INFO L274 CegarLoopResult]: For program point L14(lines 14 15) no Hoare annotation was computed. [2020-10-25 21:35:21,259 INFO L274 CegarLoopResult]: For program point L6(lines 6 16) no Hoare annotation was computed. [2020-10-25 21:35:21,259 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:35:21,260 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:35:21,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:35:21 BoogieIcfgContainer [2020-10-25 21:35:21,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:35:21,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:35:21,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:35:21,274 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:35:21,274 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:13" (3/4) ... [2020-10-25 21:35:21,279 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:35:21,292 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-25 21:35:21,292 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 21:35:21,293 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 21:35:21,293 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:35:21,333 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:35:21,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:35:21,335 INFO L168 Benchmark]: Toolchain (without parser) took 9141.93 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 25.0 MB in the beginning and 41.6 MB in the end (delta: -16.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:21,336 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 48.2 MB. Free memory was 29.8 MB in the beginning and 29.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:21,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.75 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 26.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:21,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.83 ms. Allocated memory is still 48.2 MB. Free memory was 26.1 MB in the beginning and 24.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:21,339 INFO L168 Benchmark]: Boogie Preprocessor took 28.63 ms. Allocated memory is still 48.2 MB. Free memory was 24.7 MB in the beginning and 23.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:21,340 INFO L168 Benchmark]: RCFGBuilder took 380.75 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 23.6 MB in the beginning and 36.7 MB in the end (delta: -13.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:21,341 INFO L168 Benchmark]: TraceAbstraction took 8242.92 ms. Allocated memory is still 60.8 MB. Free memory was 36.3 MB in the beginning and 44.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:21,342 INFO L168 Benchmark]: Witness Printer took 60.22 ms. Allocated memory is still 60.8 MB. Free memory was 44.1 MB in the beginning and 41.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:21,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 48.2 MB. Free memory was 29.8 MB in the beginning and 29.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.75 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 26.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.83 ms. Allocated memory is still 48.2 MB. Free memory was 26.1 MB in the beginning and 24.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.63 ms. Allocated memory is still 48.2 MB. Free memory was 24.7 MB in the beginning and 23.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 380.75 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 23.6 MB in the beginning and 36.7 MB in the end (delta: -13.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8242.92 ms. Allocated memory is still 60.8 MB. Free memory was 36.3 MB in the beginning and 44.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Witness Printer took 60.22 ms. Allocated memory is still 60.8 MB. Free memory was 44.1 MB in the beginning and 41.6 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 6.3s 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 156 SizeOfPredicates, 6 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 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...