./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 20ed64ec 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 0.2.1-dev-20ed64e [2021-08-26 00:07:39,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:07:39,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:07:39,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:07:39,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:07:39,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:07:39,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:07:39,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:07:39,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:07:39,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:07:39,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:07:39,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:07:39,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:07:39,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:07:39,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:07:39,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:07:39,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:07:39,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:07:39,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:07:39,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:07:39,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:07:39,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:07:39,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:07:39,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:07:39,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:07:39,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:07:39,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:07:39,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:07:39,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:07:39,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:07:39,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:07:39,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:07:39,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:07:39,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:07:39,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:07:39,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:07:39,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:07:39,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:07:39,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:07:39,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:07:39,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:07:39,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 00:07:40,014 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:07:40,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:07:40,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:07:40,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:07:40,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:07:40,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:07:40,016 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:07:40,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:07:40,017 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:07:40,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 00:07:40,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:07:40,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:07:40,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:07:40,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:07:40,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:07:40,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:07:40,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:07:40,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:07:40,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:07:40,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:07:40,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:07:40,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:07:40,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:07:40,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:07:40,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:07:40,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:07:40,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 00:07:40,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 00:07:40,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:07:40,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:07:40,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2021-08-26 00:07:40,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:07:40,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:07:40,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:07:40,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:07:40,230 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:07:40,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float12.c [2021-08-26 00:07:40,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6795a0832/ee27f2b0022b4bfc911f25d91cfbe660/FLAG6c3cd1448 [2021-08-26 00:07:40,597 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:07:40,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c [2021-08-26 00:07:40,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6795a0832/ee27f2b0022b4bfc911f25d91cfbe660/FLAG6c3cd1448 [2021-08-26 00:07:41,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6795a0832/ee27f2b0022b4bfc911f25d91cfbe660 [2021-08-26 00:07:41,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:07:41,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:07:41,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:07:41,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:07:41,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:07:41,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae36fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41, skipping insertion in model container [2021-08-26 00:07:41,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:07:41,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:07:41,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2021-08-26 00:07:41,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:07:41,177 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:07:41,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2021-08-26 00:07:41,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:07:41,193 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:07:41,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41 WrapperNode [2021-08-26 00:07:41,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:07:41,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:07:41,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:07:41,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:07:41,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:07:41,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:07:41,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:07:41,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:07:41,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:07:41,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:07:41,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:07:41,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:07:41,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (1/1) ... [2021-08-26 00:07:41,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:07:41,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:07:41,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 00:07:41,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 00:07:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:07:41,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:07:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 00:07:41,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:07:41,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:07:41,572 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-26 00:07:41,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:41 BoogieIcfgContainer [2021-08-26 00:07:41,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:07:41,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:07:41,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:07:41,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:07:41,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:07:41" (1/3) ... [2021-08-26 00:07:41,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3d8de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:07:41, skipping insertion in model container [2021-08-26 00:07:41,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:41" (2/3) ... [2021-08-26 00:07:41,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3d8de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:07:41, skipping insertion in model container [2021-08-26 00:07:41,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:41" (3/3) ... [2021-08-26 00:07:41,578 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2021-08-26 00:07:41,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:07:41,582 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 00:07:41,643 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:07:41,647 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 00:07:41,648 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 00:07:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:07:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-26 00:07:41,672 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:07:41,673 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-26 00:07:41,673 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:07:41,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:07:41,676 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2021-08-26 00:07:41,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 00:07:41,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188955896] [2021-08-26 00:07:41,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:07:41,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 00:07:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:07:41,803 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:07:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:07:41,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 00:07:41,857 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:07:41,858 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:41,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 00:07:41,864 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:07:41,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:07:41 BoogieIcfgContainer [2021-08-26 00:07:41,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:07:41,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:07:41,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:07:41,884 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:07:41,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:41" (3/4) ... [2021-08-26 00:07:41,887 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 00:07:41,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:07:41,891 INFO L168 Benchmark]: Toolchain (without parser) took 848.74 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 32.7 MB in the beginning and 39.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:41,892 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.4 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:07:41,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.54 ms. Allocated memory is still 54.5 MB. Free memory was 32.5 MB in the beginning and 36.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:41,893 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.27 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 36.7 MB in the beginning and 64.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:41,894 INFO L168 Benchmark]: Boogie Preprocessor took 9.86 ms. Allocated memory is still 79.7 MB. Free memory was 64.3 MB in the beginning and 63.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:07:41,895 INFO L168 Benchmark]: RCFGBuilder took 319.38 ms. Allocated memory is still 79.7 MB. Free memory was 63.3 MB in the beginning and 52.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:41,899 INFO L168 Benchmark]: TraceAbstraction took 305.33 ms. Allocated memory is still 79.7 MB. Free memory was 51.9 MB in the beginning and 39.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:41,900 INFO L168 Benchmark]: Witness Printer took 3.60 ms. Allocated memory is still 79.7 MB. Free memory was 39.6 MB in the beginning and 39.3 MB in the end (delta: 327.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:07:41,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.4 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 153.54 ms. Allocated memory is still 54.5 MB. Free memory was 32.5 MB in the beginning and 36.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.27 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 36.7 MB in the beginning and 64.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 9.86 ms. Allocated memory is still 79.7 MB. Free memory was 64.3 MB in the beginning and 63.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 319.38 ms. Allocated memory is still 79.7 MB. Free memory was 63.3 MB in the beginning and 52.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 305.33 ms. Allocated memory is still 79.7 MB. Free memory was 51.9 MB in the beginning and 39.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.60 ms. Allocated memory is still 79.7 MB. Free memory was 39.6 MB in the beginning and 39.3 MB in the end (delta: 327.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 15]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is 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) [L15] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 220.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 18.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.2ms SsaConstructionTime, 28.7ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-08-26 00:07:41,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:07:43,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:07:43,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:07:43,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:07:43,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:07:43,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:07:43,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:07:43,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:07:43,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:07:43,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:07:43,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:07:43,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:07:43,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:07:43,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:07:43,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:07:43,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:07:43,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:07:43,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:07:43,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:07:43,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:07:43,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:07:43,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:07:43,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:07:43,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:07:43,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:07:43,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:07:43,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:07:43,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:07:43,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:07:43,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:07:43,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:07:43,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:07:43,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:07:43,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:07:43,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:07:43,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:07:43,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:07:43,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:07:43,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:07:43,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:07:43,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:07:43,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 00:07:43,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:07:43,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:07:43,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:07:43,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:07:43,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:07:43,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:07:43,765 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:07:43,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:07:43,765 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:07:43,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:07:43,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:07:43,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:07:43,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:07:43,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:07:43,767 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 00:07:43,767 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 00:07:43,767 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:07:43,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:07:43,767 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:07:43,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:07:43,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:07:43,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:07:43,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:07:43,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:07:43,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:07:43,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:07:43,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:07:43,768 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 00:07:43,769 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 00:07:43,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:07:43,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:07:43,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 00:07:43,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2021-08-26 00:07:44,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:07:44,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:07:44,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:07:44,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:07:44,049 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:07:44,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float12.c [2021-08-26 00:07:44,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf68646c/ac6d68191bae4a34bb3e7e50c7ae61c3/FLAG124a00c44 [2021-08-26 00:07:44,454 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:07:44,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c [2021-08-26 00:07:44,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf68646c/ac6d68191bae4a34bb3e7e50c7ae61c3/FLAG124a00c44 [2021-08-26 00:07:44,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf68646c/ac6d68191bae4a34bb3e7e50c7ae61c3 [2021-08-26 00:07:44,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:07:44,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:07:44,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:07:44,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:07:44,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:07:44,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475f26d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44, skipping insertion in model container [2021-08-26 00:07:44,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:07:44,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:07:44,613 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2021-08-26 00:07:44,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:07:44,630 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:07:44,640 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2021-08-26 00:07:44,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:07:44,678 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:07:44,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44 WrapperNode [2021-08-26 00:07:44,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:07:44,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:07:44,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:07:44,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:07:44,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:07:44,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:07:44,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:07:44,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:07:44,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:07:44,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:07:44,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:07:44,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:07:44,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (1/1) ... [2021-08-26 00:07:44,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:07:44,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:07:44,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 00:07:44,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 00:07:44,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 00:07:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:07:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:07:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:07:45,055 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:07:45,055 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-26 00:07:45,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:45 BoogieIcfgContainer [2021-08-26 00:07:45,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:07:45,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:07:45,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:07:45,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:07:45,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:07:44" (1/3) ... [2021-08-26 00:07:45,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e61311a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:07:45, skipping insertion in model container [2021-08-26 00:07:45,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:07:44" (2/3) ... [2021-08-26 00:07:45,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e61311a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:07:45, skipping insertion in model container [2021-08-26 00:07:45,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:45" (3/3) ... [2021-08-26 00:07:45,061 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2021-08-26 00:07:45,068 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:07:45,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 00:07:45,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:07:45,100 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 00:07:45,100 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 00:07:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:07:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-26 00:07:45,117 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:07:45,117 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-26 00:07:45,118 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:07:45,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:07:45,121 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2021-08-26 00:07:45,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:07:45,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804296407] [2021-08-26 00:07:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:07:45,129 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:07:45,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:07:45,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 00:07:45,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 00:07:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:07:45,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-26 00:07:45,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:07:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:07:46,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:07:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:07:48,650 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:07:48,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804296407] [2021-08-26 00:07:48,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804296407] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:07:48,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:07:48,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-08-26 00:07:48,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358155864] [2021-08-26 00:07:48,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 00:07:48,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:07:48,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 00:07:48,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-26 00:07:48,665 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:07:52,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:07:52,317 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-08-26 00:07:52,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 00:07:52,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-26 00:07:52,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:07:52,340 INFO L225 Difference]: With dead ends: 15 [2021-08-26 00:07:52,340 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 00:07:52,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5176.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-26 00:07:52,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 00:07:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 00:07:52,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:07:52,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 00:07:52,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-08-26 00:07:52,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:07:52,371 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 00:07:52,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 00:07:52,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 00:07:52,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 00:07:52,374 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:07:52,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-26 00:07:52,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:07:52,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 00:07:52,578 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 00:07:52,578 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 00:07:52,578 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 00:07:52,579 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 00:07:52,579 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-08-26 00:07:52,579 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-08-26 00:07:52,579 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 15) no Hoare annotation was computed. [2021-08-26 00:07:52,579 INFO L857 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-08-26 00:07:52,579 INFO L857 garLoopResultBuilder]: For program point L6(lines 6 16) no Hoare annotation was computed. [2021-08-26 00:07:52,582 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:07:52,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:07:52 BoogieIcfgContainer [2021-08-26 00:07:52,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:07:52,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:07:52,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:07:52,588 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:07:52,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:07:45" (3/4) ... [2021-08-26 00:07:52,590 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 00:07:52,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-26 00:07:52,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 00:07:52,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 00:07:52,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:07:52,626 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:07:52,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:07:52,628 INFO L168 Benchmark]: Toolchain (without parser) took 8150.78 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 43.6 MB in the beginning and 44.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:52,628 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:07:52,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.24 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 46.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:52,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.38 ms. Allocated memory is still 62.9 MB. Free memory was 46.8 MB in the beginning and 45.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:07:52,630 INFO L168 Benchmark]: Boogie Preprocessor took 31.51 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 44.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:52,630 INFO L168 Benchmark]: RCFGBuilder took 319.36 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 33.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:52,631 INFO L168 Benchmark]: TraceAbstraction took 7527.64 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 32.6 MB in the beginning and 47.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:52,631 INFO L168 Benchmark]: Witness Printer took 39.40 ms. Allocated memory is still 77.6 MB. Free memory was 47.0 MB in the beginning and 44.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:07:52,636 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 200.24 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 46.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.38 ms. Allocated memory is still 62.9 MB. Free memory was 46.8 MB in the beginning and 45.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.51 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 44.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 319.36 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 33.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7527.64 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 32.6 MB in the beginning and 47.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 1.7 MB. Max. memory is 16.1 GB. * Witness Printer took 39.40 ms. Allocated memory is still 77.6 MB. Free memory was 47.0 MB in the beginning and 44.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7487.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.9ms, AutomataDifference: 3686.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.8ms, InitialAbstractionConstructionTime: 5.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 13 SDslu, 2 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 568.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5176.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 21.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 7.6ms SsaConstructionTime, 27.4ms SatisfiabilityAnalysisTime, 3462.9ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 39 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-26 00:07:52,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...