./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_union_loose.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 6d326830d1a06d25f37f8f4a0194455fcdc1bce7 ................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_union_loose.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 6d326830d1a06d25f37f8f4a0194455fcdc1bce7 .................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:42:22,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:42:22,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:42:22,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:42:22,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:42:22,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:42:22,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:42:22,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:42:22,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:42:22,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:42:22,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:42:22,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:42:22,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:42:22,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:42:22,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:42:22,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:42:22,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:42:22,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:42:22,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:42:22,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:42:22,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:42:22,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:42:22,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:42:22,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:42:22,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:42:22,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:42:22,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:42:22,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:42:22,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:42:22,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:42:22,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:42:22,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:42:22,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:42:22,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:42:22,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:42:22,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:42:22,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:42:22,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:42:22,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:42:22,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:42:22,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:42:22,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 06:42:22,258 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:42:22,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:42:22,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:42:22,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:42:22,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:42:22,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:42:22,262 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:42:22,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:42:22,262 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:42:22,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 06:42:22,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:42:22,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:42:22,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:42:22,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:42:22,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:42:22,264 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:42:22,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:42:22,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:42:22,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:42:22,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:42:22,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:42:22,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:42:22,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:42:22,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:42:22,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:42:22,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:42:22,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 06:42:22,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 06:42:22,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:42:22,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:42:22,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d326830d1a06d25f37f8f4a0194455fcdc1bce7 [2021-08-29 06:42:22,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:42:22,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:42:22,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:42:22,526 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:42:22,526 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:42:22,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-08-29 06:42:22,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c44af592/663a430474c546fa8e7613fcab8f31f0/FLAG6cd8f03f8 [2021-08-29 06:42:22,959 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:42:22,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-08-29 06:42:22,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c44af592/663a430474c546fa8e7613fcab8f31f0/FLAG6cd8f03f8 [2021-08-29 06:42:22,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c44af592/663a430474c546fa8e7613fcab8f31f0 [2021-08-29 06:42:22,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:42:22,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:42:22,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:42:22,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:42:22,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:42:22,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:42:22" (1/1) ... [2021-08-29 06:42:22,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754a5ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:22, skipping insertion in model container [2021-08-29 06:42:22,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:42:22" (1/1) ... [2021-08-29 06:42:22,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:42:23,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:42:23,093 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/float-benchs/cast_union_loose.c[582,595] [2021-08-29 06:42:23,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:42:23,110 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:42:23,125 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/float-benchs/cast_union_loose.c[582,595] [2021-08-29 06:42:23,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:42:23,159 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:42:23,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23 WrapperNode [2021-08-29 06:42:23,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:42:23,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:42:23,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:42:23,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:42:23,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:42:23,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:42:23,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:42:23,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:42:23,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:42:23,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:42:23,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:42:23,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:42:23,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (1/1) ... [2021-08-29 06:42:23,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:42:23,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:42:23,234 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) [2021-08-29 06:42:23,242 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 [2021-08-29 06:42:23,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 06:42:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:42:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 06:42:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 06:42:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:42:23,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:42:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 06:42:23,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 06:42:23,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:42:23,429 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 06:42:23,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:42:23 BoogieIcfgContainer [2021-08-29 06:42:23,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:42:23,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:42:23,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:42:23,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:42:23,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:42:22" (1/3) ... [2021-08-29 06:42:23,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f7677f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:42:23, skipping insertion in model container [2021-08-29 06:42:23,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:23" (2/3) ... [2021-08-29 06:42:23,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f7677f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:42:23, skipping insertion in model container [2021-08-29 06:42:23,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:42:23" (3/3) ... [2021-08-29 06:42:23,436 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2021-08-29 06:42:23,443 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:42:23,443 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:42:23,480 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:42:23,490 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 [2021-08-29 06:42:23,491 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:42:23,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-08-29 06:42:23,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 06:42:23,514 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:42:23,514 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:42:23,515 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:42:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:42:23,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2021-08-29 06:42:23,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:42:23,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272852298] [2021-08-29 06:42:23,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:42:23,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:42:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:42:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:42:23,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 06:42:23,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272852298] [2021-08-29 06:42:23,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272852298] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 06:42:23,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:42:23,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 06:42:23,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797798730] [2021-08-29 06:42:23,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 06:42:23,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 06:42:23,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 06:42:23,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:42:23,706 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-08-29 06:42:23,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:42:23,760 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-08-29 06:42:23,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 06:42:23,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-08-29 06:42:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:42:23,770 INFO L225 Difference]: With dead ends: 21 [2021-08-29 06:42:23,775 INFO L226 Difference]: Without dead ends: 8 [2021-08-29 06:42:23,777 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:42:23,795 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.23ms IncrementalHoareTripleChecker+Time [2021-08-29 06:42:23,796 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 44.23ms Time] [2021-08-29 06:42:23,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-08-29 06:42:23,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-08-29 06:42:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2021-08-29 06:42:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-08-29 06:42:23,824 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2021-08-29 06:42:23,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:42:23,824 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-08-29 06:42:23,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-08-29 06:42:23,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-08-29 06:42:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 06:42:23,829 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:42:23,829 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:42:23,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 06:42:23,830 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:42:23,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:42:23,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2021-08-29 06:42:23,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:42:23,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066191177] [2021-08-29 06:42:23,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:42:23,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:42:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:42:23,876 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:42:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:42:23,934 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 06:42:23,934 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:42:23,936 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:42:23,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 06:42:23,943 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:42:23,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:42:23 BoogieIcfgContainer [2021-08-29 06:42:23,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:42:23,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:42:23,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:42:23,958 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:42:23,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:42:23" (3/4) ... [2021-08-29 06:42:23,960 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 06:42:23,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:42:23,961 INFO L158 Benchmark]: Toolchain (without parser) took 979.39ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 43.7MB in the beginning and 42.0MB in the end (delta: 1.7MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2021-08-29 06:42:23,961 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 44.9MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:23,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.99ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 46.0MB in the end (delta: -2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 06:42:23,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.45ms. Allocated memory is still 62.9MB. Free memory was 45.8MB in the beginning and 44.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:23,962 INFO L158 Benchmark]: Boogie Preprocessor took 28.56ms. Allocated memory is still 62.9MB. Free memory was 44.3MB in the beginning and 43.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:23,963 INFO L158 Benchmark]: RCFGBuilder took 218.53ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 33.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:42:23,963 INFO L158 Benchmark]: TraceAbstraction took 525.38ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 32.9MB in the beginning and 42.4MB in the end (delta: -9.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:23,963 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 81.8MB. Free memory was 42.4MB in the beginning and 42.0MB in the end (delta: 367.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:23,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 44.9MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.99ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 46.0MB in the end (delta: -2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.45ms. Allocated memory is still 62.9MB. Free memory was 45.8MB in the beginning and 44.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.56ms. Allocated memory is still 62.9MB. Free memory was 44.3MB in the beginning and 43.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 218.53ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 33.5MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 525.38ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 32.9MB in the beginning and 42.4MB in the end (delta: -9.5MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 81.8MB. Free memory was 42.4MB in the beginning and 42.0MB in the end (delta: 367.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27, overapproximation of bitwiseXor at line 26. Possible FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L11] COND FALSE !(!cond) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; [L38] r = cast(a) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 463.53ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 15.46ms, AutomataDifference: 114.84ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.65ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 44.23ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 37.13ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 18.89ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.36ms SsaConstructionTime, 61.53ms SatisfiabilityAnalysisTime, 59.46ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-08-29 06:42:23,995 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-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:42:25,479 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-29 06:42:25,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:42:25,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:42:25,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:42:25,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:42:25,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:42:25,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:42:25,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:42:25,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:42:25,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:42:25,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:42:25,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:42:25,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 06:42:25,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:42:25,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:42:25,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:42:25,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:42:25,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:42:25,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:42:25,609 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:42:25,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:42:25,610 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:42:25,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:42:25,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:42:25,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:42:25,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:42:25,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:42:25,611 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 06:42:25,611 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 06:42:25,611 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:42:25,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:42:25,612 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:42:25,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:42:25,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:42:25,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:42:25,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:42:25,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:42:25,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:42:25,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:42:25,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:42:25,613 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 06:42:25,613 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 06:42:25,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:42:25,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:42:25,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 06:42:25,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d326830d1a06d25f37f8f4a0194455fcdc1bce7 [2021-08-29 06:42:25,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:42:25,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:42:25,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:42:25,884 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:42:25,884 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:42:25,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-08-29 06:42:25,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f80bc252/cd744258d862495d85a19725fc27992a/FLAGb7c54779e [2021-08-29 06:42:26,299 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:42:26,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-08-29 06:42:26,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f80bc252/cd744258d862495d85a19725fc27992a/FLAGb7c54779e [2021-08-29 06:42:26,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f80bc252/cd744258d862495d85a19725fc27992a [2021-08-29 06:42:26,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:42:26,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:42:26,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:42:26,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:42:26,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:42:26,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ed3dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26, skipping insertion in model container [2021-08-29 06:42:26,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:42:26,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:42:26,441 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/float-benchs/cast_union_loose.c[582,595] [2021-08-29 06:42:26,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:42:26,466 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:42:26,474 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/float-benchs/cast_union_loose.c[582,595] [2021-08-29 06:42:26,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:42:26,497 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:42:26,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26 WrapperNode [2021-08-29 06:42:26,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:42:26,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:42:26,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:42:26,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:42:26,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:42:26,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:42:26,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:42:26,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:42:26,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:42:26,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:42:26,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:42:26,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:42:26,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (1/1) ... [2021-08-29 06:42:26,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:42:26,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:42:26,585 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) [2021-08-29 06:42:26,587 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 [2021-08-29 06:42:26,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-29 06:42:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 06:42:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:42:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 06:42:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:42:26,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:42:26,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 06:42:26,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 06:42:26,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:42:26,783 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 06:42:26,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:42:26 BoogieIcfgContainer [2021-08-29 06:42:26,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:42:26,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:42:26,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:42:26,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:42:26,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:42:26" (1/3) ... [2021-08-29 06:42:26,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c89fbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:42:26, skipping insertion in model container [2021-08-29 06:42:26,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:42:26" (2/3) ... [2021-08-29 06:42:26,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c89fbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:42:26, skipping insertion in model container [2021-08-29 06:42:26,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:42:26" (3/3) ... [2021-08-29 06:42:26,793 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2021-08-29 06:42:26,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:42:26,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:42:26,839 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:42:26,848 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 [2021-08-29 06:42:26,848 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:42:26,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2021-08-29 06:42:26,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 06:42:26,874 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:42:26,874 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:42:26,875 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:42:26,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:42:26,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2021-08-29 06:42:26,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:42:26,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771155156] [2021-08-29 06:42:26,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:42:26,891 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:42:26,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:42:26,902 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) [2021-08-29 06:42:26,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 06:42:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:42:27,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 06:42:27,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:42:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:42:27,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:42:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:42:27,171 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:42:27,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771155156] [2021-08-29 06:42:27,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771155156] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:42:27,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:42:27,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 06:42:27,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867606758] [2021-08-29 06:42:27,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 06:42:27,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:42:27,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 06:42:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:42:27,199 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-08-29 06:42:29,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 06:42:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:42:29,332 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-08-29 06:42:29,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 06:42:29,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-08-29 06:42:29,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:42:29,338 INFO L225 Difference]: With dead ends: 21 [2021-08-29 06:42:29,339 INFO L226 Difference]: Without dead ends: 8 [2021-08-29 06:42:29,340 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.07ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:42:29,343 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2106.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2121.59ms IncrementalHoareTripleChecker+Time [2021-08-29 06:42:29,344 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 11 Unknown, 0 Unchecked, 0.15ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2121.59ms Time] [2021-08-29 06:42:29,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-08-29 06:42:29,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-08-29 06:42:29,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 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) [2021-08-29 06:42:29,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-08-29 06:42:29,361 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2021-08-29 06:42:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:42:29,362 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-08-29 06:42:29,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-08-29 06:42:29,362 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-08-29 06:42:29,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 06:42:29,363 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:42:29,363 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:42:29,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 06:42:29,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:42:29,574 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:42:29,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:42:29,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2021-08-29 06:42:29,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:42:29,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720522365] [2021-08-29 06:42:29,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:42:29,577 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:42:29,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:42:29,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:42:29,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 06:42:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:42:29,689 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:42:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:42:29,823 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-29 06:42:29,823 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:42:29,824 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:42:29,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-29 06:42:30,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:42:30,030 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:42:30,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:42:30 BoogieIcfgContainer [2021-08-29 06:42:30,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:42:30,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:42:30,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:42:30,044 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:42:30,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:42:26" (3/4) ... [2021-08-29 06:42:30,045 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 06:42:30,072 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 06:42:30,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:42:30,073 INFO L158 Benchmark]: Toolchain (without parser) took 3750.38ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 30.2MB in the beginning and 53.7MB in the end (delta: -23.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-08-29 06:42:30,073 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:30,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.37ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 30.1MB in the beginning and 55.9MB in the end (delta: -25.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-08-29 06:42:30,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 71.3MB. Free memory was 55.6MB in the beginning and 54.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:30,074 INFO L158 Benchmark]: Boogie Preprocessor took 17.50ms. Allocated memory is still 71.3MB. Free memory was 54.1MB in the beginning and 52.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:30,074 INFO L158 Benchmark]: RCFGBuilder took 232.00ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 42.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 06:42:30,075 INFO L158 Benchmark]: TraceAbstraction took 3255.09ms. Allocated memory is still 71.3MB. Free memory was 42.4MB in the beginning and 35.0MB in the end (delta: 7.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2021-08-29 06:42:30,075 INFO L158 Benchmark]: Witness Printer took 29.21ms. Allocated memory is still 71.3MB. Free memory was 35.0MB in the beginning and 53.7MB in the end (delta: -18.7MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-08-29 06:42:30,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.37ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 30.1MB in the beginning and 55.9MB in the end (delta: -25.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 71.3MB. Free memory was 55.6MB in the beginning and 54.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.50ms. Allocated memory is still 71.3MB. Free memory was 54.1MB in the beginning and 52.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 232.00ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 42.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3255.09ms. Allocated memory is still 71.3MB. Free memory was 42.4MB in the beginning and 35.0MB in the end (delta: 7.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 29.21ms. Allocated memory is still 71.3MB. Free memory was 35.0MB in the beginning and 53.7MB in the end (delta: -18.7MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L11] COND FALSE !(!cond) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; [L38] r = cast(a) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3192.06ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 17.06ms, AutomataDifference: 2167.84ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 8.31ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 2121.59ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2106.78ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 10 mSolverCounterSat, 0.15ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.07ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 8.58ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.74ms SsaConstructionTime, 171.88ms SatisfiabilityAnalysisTime, 83.17ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 1 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 incorrect! [2021-08-29 06:42:30,113 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...