./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/float_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/float_double.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 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 ............................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/float_double.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 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:18:16,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:18:16,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:18:16,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:18:16,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:18:16,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:18:16,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:18:16,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:18:16,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:18:16,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:18:16,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:18:16,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:18:16,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:18:16,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:18:16,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:18:16,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:18:16,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:18:16,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:18:16,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:18:16,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:18:16,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:18:16,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:18:16,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:18:16,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:18:16,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:18:16,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:18:16,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:18:16,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:18:16,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:18:16,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:18:16,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:18:16,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:18:16,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:18:16,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:18:16,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:18:16,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:18:16,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:18:16,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:18:16,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:18:16,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:18:16,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:18:16,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:18:16,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:18:16,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:18:16,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:18:16,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:18:16,977 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:18:16,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:18:16,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:18:16,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:18:16,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:18:16,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:18:16,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:18:16,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:18:16,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:18:16,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:18:16,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:18:16,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:18:16,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:18:16,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:18:16,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:18:16,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:18:16,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:18:16,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:18:16,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:18:16,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:18:16,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:18:16,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:18:16,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:18:16,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:18:16,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:18:16,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2020-10-20 00:18:17,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:18:17,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:18:17,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:18:17,221 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:18:17,221 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:18:17,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_double.c [2020-10-20 00:18:17,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aae8057c0/576707528a134d5d9abfa62f56fb9ff5/FLAG1869e94ef [2020-10-20 00:18:17,754 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:18:17,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/float_double.c [2020-10-20 00:18:17,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aae8057c0/576707528a134d5d9abfa62f56fb9ff5/FLAG1869e94ef [2020-10-20 00:18:18,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aae8057c0/576707528a134d5d9abfa62f56fb9ff5 [2020-10-20 00:18:18,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:18:18,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:18:18,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:18:18,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:18:18,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:18:18,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106e8f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18, skipping insertion in model container [2020-10-20 00:18:18,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:18:18,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:18:18,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:18:18,443 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:18:18,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:18:18,484 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:18:18,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18 WrapperNode [2020-10-20 00:18:18,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:18:18,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:18:18,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:18:18,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:18:18,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:18:18,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:18:18,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:18:18,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:18:18,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... [2020-10-20 00:18:18,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:18:18,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:18:18,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:18:18,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:18:18,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:18:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:18:18,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:18:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:18:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:18:18,953 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:18:18,954 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 00:18:18,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:18:18 BoogieIcfgContainer [2020-10-20 00:18:18,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:18:18,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:18:18,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:18:18,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:18:18,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:18:18" (1/3) ... [2020-10-20 00:18:18,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fd1f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:18:18, skipping insertion in model container [2020-10-20 00:18:18,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:18" (2/3) ... [2020-10-20 00:18:18,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fd1f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:18:18, skipping insertion in model container [2020-10-20 00:18:18,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:18:18" (3/3) ... [2020-10-20 00:18:18,965 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-10-20 00:18:18,982 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:18:18,991 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:18:19,011 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:18:19,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:18:19,042 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:18:19,042 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:18:19,042 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:18:19,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:18:19,043 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:18:19,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:18:19,043 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:18:19,077 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-20 00:18:19,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:18:19,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:18:19,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:18:19,092 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:18:19,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:18:19,099 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-20 00:18:19,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:18:19,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035277061] [2020-10-20 00:18:19,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:18:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:18:19,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:18:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:18:19,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:18:19,278 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:18:19,279 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:18:19,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:18:19,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:18:19 BoogieIcfgContainer [2020-10-20 00:18:19,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:18:19,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:18:19,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:18:19,307 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:18:19,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:18:18" (3/4) ... [2020-10-20 00:18:19,312 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:18:19,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:18:19,316 INFO L168 Benchmark]: Toolchain (without parser) took 1221.38 ms. Allocated memory was 35.7 MB in the beginning and 46.1 MB in the end (delta: 10.5 MB). Free memory was 16.0 MB in the beginning and 24.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:19,317 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 10.4 MB in the beginning and 10.3 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:18:19,319 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.18 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 15.1 MB in the beginning and 26.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:19,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.37 ms. Allocated memory is still 44.0 MB. Free memory was 25.9 MB in the beginning and 24.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:19,320 INFO L168 Benchmark]: Boogie Preprocessor took 41.31 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 23.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:19,322 INFO L168 Benchmark]: RCFGBuilder took 377.18 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 23.2 MB in the beginning and 24.1 MB in the end (delta: -935.8 kB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:19,323 INFO L168 Benchmark]: TraceAbstraction took 348.81 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 24.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:19,323 INFO L168 Benchmark]: Witness Printer took 6.33 ms. Allocated memory is still 46.1 MB. Free memory was 24.5 MB in the beginning and 24.3 MB in the end (delta: 260.1 kB). Peak memory consumption was 260.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:18:19,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 34.1 MB. Free memory was 10.4 MB in the beginning and 10.3 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 387.18 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 15.1 MB in the beginning and 26.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.37 ms. Allocated memory is still 44.0 MB. Free memory was 25.9 MB in the beginning and 24.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 41.31 ms. Allocated memory is still 44.0 MB. Free memory was 24.4 MB in the beginning and 23.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 377.18 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 23.2 MB in the beginning and 24.1 MB in the end (delta: -935.8 kB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 348.81 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 24.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * Witness Printer took 6.33 ms. Allocated memory is still 46.1 MB. Free memory was 24.5 MB in the beginning and 24.3 MB in the end (delta: 260.1 kB). Peak memory consumption was 260.1 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L10] double x = 1e20 + 1.; [L11] float y = x; [L6] COND TRUE !(cond) [L3] __assert_fail("0", "float_double.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 0.1.25-9a8b2e8 [2020-10-20 00:18:21,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:18:21,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:18:21,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:18:21,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:18:21,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:18:21,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:18:21,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:18:21,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:18:21,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:18:21,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:18:21,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:18:21,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:18:21,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:18:21,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:18:21,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:18:21,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:18:21,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:18:21,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:18:21,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:18:21,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:18:21,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:18:21,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:18:21,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:18:21,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:18:21,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:18:21,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:18:21,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:18:21,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:18:21,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:18:21,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:18:21,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:18:21,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:18:21,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:18:21,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:18:21,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:18:21,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:18:21,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:18:21,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:18:21,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:18:21,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:18:21,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:18:21,787 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:18:21,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:18:21,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:18:21,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:18:21,790 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:18:21,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:18:21,791 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:18:21,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:18:21,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:18:21,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:18:21,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:18:21,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:18:21,793 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:18:21,794 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:18:21,794 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:18:21,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:18:21,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:18:21,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:18:21,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:18:21,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:18:21,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:18:21,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:18:21,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:18:21,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:18:21,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:18:21,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:18:21,798 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:18:21,798 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:18:21,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:18:21,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:18:21,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:18:21,799 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2020-10-20 00:18:22,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:18:22,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:18:22,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:18:22,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:18:22,071 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:18:22,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_double.c [2020-10-20 00:18:22,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/858186f90/de9261f01a464fedb71b17cf6cb6e37e/FLAG54c285d45 [2020-10-20 00:18:22,578 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:18:22,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/float_double.c [2020-10-20 00:18:22,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/858186f90/de9261f01a464fedb71b17cf6cb6e37e/FLAG54c285d45 [2020-10-20 00:18:22,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/858186f90/de9261f01a464fedb71b17cf6cb6e37e [2020-10-20 00:18:22,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:18:22,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:18:22,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:18:22,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:18:22,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:18:22,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:18:22" (1/1) ... [2020-10-20 00:18:22,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3a6b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:22, skipping insertion in model container [2020-10-20 00:18:22,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:18:22" (1/1) ... [2020-10-20 00:18:22,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:18:23,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:18:23,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:18:23,367 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:18:23,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:18:23,410 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:18:23,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23 WrapperNode [2020-10-20 00:18:23,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:18:23,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:18:23,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:18:23,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:18:23,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:18:23,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:18:23,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:18:23,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:18:23,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... [2020-10-20 00:18:23,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:18:23,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:18:23,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:18:23,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:18:23,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:18:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:18:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:18:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:18:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:18:23,891 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:18:23,892 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 00:18:23,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:18:23 BoogieIcfgContainer [2020-10-20 00:18:23,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:18:23,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:18:23,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:18:23,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:18:23,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:18:22" (1/3) ... [2020-10-20 00:18:23,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fb78fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:18:23, skipping insertion in model container [2020-10-20 00:18:23,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:18:23" (2/3) ... [2020-10-20 00:18:23,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fb78fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:18:23, skipping insertion in model container [2020-10-20 00:18:23,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:18:23" (3/3) ... [2020-10-20 00:18:23,903 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-10-20 00:18:23,915 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:18:23,923 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:18:23,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:18:23,963 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:18:23,963 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:18:23,963 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:18:23,963 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:18:23,964 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:18:23,964 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:18:23,964 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:18:23,964 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:18:23,978 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-20 00:18:23,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:18:23,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:18:23,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:18:23,985 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:18:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:18:23,990 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-20 00:18:24,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:18:24,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57168238] [2020-10-20 00:18:24,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:18:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:18:24,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 00:18:24,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:18:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:18:24,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:18:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:18:24,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57168238] [2020-10-20 00:18:24,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:18:24,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-20 00:18:24,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87396862] [2020-10-20 00:18:24,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 00:18:24,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:18:24,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 00:18:24,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:18:24,406 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-10-20 00:18:24,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:18:24,427 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-20 00:18:24,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:18:24,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-20 00:18:24,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:18:24,436 INFO L225 Difference]: With dead ends: 14 [2020-10-20 00:18:24,436 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:18:24,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:18:24,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:18:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:18:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:18:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:18:24,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-20 00:18:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:18:24,465 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:18:24,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 00:18:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:18:24,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:18:24,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:18:24,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:18:24,725 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:18:24,725 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:18:24,725 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:18:24,726 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:18:24,726 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:18:24,726 INFO L270 CegarLoopResult]: At program point L13(lines 8 14) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-20 00:18:24,726 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-20 00:18:24,727 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-10-20 00:18:24,727 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:18:24,727 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-20 00:18:24,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:18:24 BoogieIcfgContainer [2020-10-20 00:18:24,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:18:24,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:18:24,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:18:24,742 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:18:24,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:18:23" (3/4) ... [2020-10-20 00:18:24,746 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:18:24,756 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:18:24,756 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 00:18:24,757 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 00:18:24,757 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:18:24,795 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:18:24,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:18:24,798 INFO L168 Benchmark]: Toolchain (without parser) took 1835.28 ms. Allocated memory was 37.2 MB in the beginning and 47.2 MB in the end (delta: 10.0 MB). Free memory was 12.8 MB in the beginning and 18.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:24,799 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 36.7 MB. Free memory was 16.0 MB in the beginning and 15.9 MB in the end (delta: 50.0 kB). Peak memory consumption was 50.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:18:24,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.83 ms. Allocated memory was 37.2 MB in the beginning and 44.6 MB in the end (delta: 7.3 MB). Free memory was 12.0 MB in the beginning and 27.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:24,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.02 ms. Allocated memory is still 44.6 MB. Free memory was 27.7 MB in the beginning and 26.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:24,802 INFO L168 Benchmark]: Boogie Preprocessor took 26.94 ms. Allocated memory is still 44.6 MB. Free memory was 26.0 MB in the beginning and 24.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:24,803 INFO L168 Benchmark]: RCFGBuilder took 419.32 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 24.5 MB in the beginning and 27.3 MB in the end (delta: -2.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:24,804 INFO L168 Benchmark]: TraceAbstraction took 846.04 ms. Allocated memory was 46.7 MB in the beginning and 47.2 MB in the end (delta: 524.3 kB). Free memory was 26.8 MB in the beginning and 21.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:24,805 INFO L168 Benchmark]: Witness Printer took 54.08 ms. Allocated memory is still 47.2 MB. Free memory was 21.0 MB in the beginning and 18.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:18:24,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 36.7 MB. Free memory was 16.0 MB in the beginning and 15.9 MB in the end (delta: 50.0 kB). Peak memory consumption was 50.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 441.83 ms. Allocated memory was 37.2 MB in the beginning and 44.6 MB in the end (delta: 7.3 MB). Free memory was 12.0 MB in the beginning and 27.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 36.02 ms. Allocated memory is still 44.6 MB. Free memory was 27.7 MB in the beginning and 26.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.94 ms. Allocated memory is still 44.6 MB. Free memory was 26.0 MB in the beginning and 24.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 419.32 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 24.5 MB in the beginning and 27.3 MB in the end (delta: -2.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 846.04 ms. Allocated memory was 46.7 MB in the beginning and 47.2 MB in the end (delta: 524.3 kB). Free memory was 26.8 MB in the beginning and 21.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. * Witness Printer took 54.08 ms. Allocated memory is still 47.2 MB. Free memory was 21.0 MB in the beginning and 18.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 6 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 4 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...