./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/fmax.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-esbmc-regression/fmax.i -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 f24602a0caa1d47ea4587be7b2b610ea917e2304 .............................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-esbmc-regression/fmax.i -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 f24602a0caa1d47ea4587be7b2b610ea917e2304 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:24:54,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:24:54,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:24:54,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:24:54,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:24:54,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:24:54,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:24:54,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:24:54,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:24:54,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:24:54,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:24:54,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:24:54,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:24:54,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:24:54,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:24:54,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:24:54,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:24:54,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:24:54,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:24:54,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:24:54,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:24:54,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:24:54,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:24:54,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:24:54,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:24:54,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:24:54,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:24:54,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:24:54,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:24:54,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:24:54,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:24:54,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:24:54,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:24:54,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:24:54,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:24:54,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:24:54,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:24:54,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:24:54,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:24:54,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:24:54,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:24:54,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:24:54,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:24:54,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:24:54,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:24:54,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:24:54,299 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:24:54,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:24:54,299 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:24:54,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:24:54,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:24:54,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:24:54,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:24:54,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:24:54,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:24:54,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:24:54,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:24:54,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:24:54,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:24:54,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:24:54,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:24:54,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:24:54,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:24:54,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:24:54,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:24:54,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:24:54,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:24:54,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:24:54,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:24:54,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:24:54,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:24:54,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24602a0caa1d47ea4587be7b2b610ea917e2304 [2020-10-20 00:24:54,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:24:54,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:24:54,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:24:54,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:24:54,544 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:24:54,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmax.i [2020-10-20 00:24:54,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921a5e840/b2d045f8483e4279b6b035e7de49a409/FLAG1e005fd7a [2020-10-20 00:24:55,280 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:24:55,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmax.i [2020-10-20 00:24:55,301 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921a5e840/b2d045f8483e4279b6b035e7de49a409/FLAG1e005fd7a [2020-10-20 00:24:55,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921a5e840/b2d045f8483e4279b6b035e7de49a409 [2020-10-20 00:24:55,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:24:55,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:24:55,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:24:55,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:24:55,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:24:55,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:24:55" (1/1) ... [2020-10-20 00:24:55,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc8754e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:24:55, skipping insertion in model container [2020-10-20 00:24:55,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:24:55" (1/1) ... [2020-10-20 00:24:55,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:24:55,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:24:56,159 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmax at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1698) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1352) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-20 00:24:56,167 INFO L168 Benchmark]: Toolchain (without parser) took 545.20 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 15.9 MB in the beginning and 12.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 6.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:24:56,169 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 30.9 MB. Free memory was 6.1 MB in the beginning and 6.1 MB in the end (delta: 40.2 kB). Peak memory consumption was 40.2 kB. Max. memory is 14.3 GB. [2020-10-20 00:24:56,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.40 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 14.9 MB in the beginning and 12.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:24:56,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 30.9 MB. Free memory was 6.1 MB in the beginning and 6.1 MB in the end (delta: 40.2 kB). Peak memory consumption was 40.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 534.40 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 14.9 MB in the beginning and 12.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmax de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmax: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:24:58,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:24:58,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:24:58,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:24:58,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:24:58,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:24:58,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:24:58,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:24:58,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:24:58,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:24:58,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:24:58,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:24:58,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:24:58,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:24:58,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:24:58,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:24:58,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:24:58,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:24:58,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:24:58,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:24:58,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:24:58,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:24:58,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:24:58,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:24:58,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:24:58,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:24:58,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:24:58,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:24:58,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:24:58,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:24:58,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:24:58,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:24:58,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:24:58,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:24:58,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:24:58,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:24:58,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:24:58,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:24:58,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:24:58,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:24:58,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:24:58,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:24:58,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:24:58,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:24:58,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:24:58,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:24:58,331 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:24:58,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:24:58,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:24:58,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:24:58,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:24:58,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:24:58,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:24:58,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:24:58,334 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:24:58,335 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:24:58,335 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:24:58,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:24:58,336 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:24:58,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:24:58,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:24:58,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:24:58,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:24:58,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:24:58,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:24:58,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:24:58,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:24:58,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:24:58,338 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:24:58,339 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:24:58,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:24:58,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:24:58,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:24:58,340 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24602a0caa1d47ea4587be7b2b610ea917e2304 [2020-10-20 00:24:58,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:24:58,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:24:58,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:24:58,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:24:58,576 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:24:58,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmax.i [2020-10-20 00:24:58,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be214754/f45964ab61244ffc9abc759c43fc2a42/FLAG917fdcdae [2020-10-20 00:24:59,254 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:24:59,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmax.i [2020-10-20 00:24:59,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be214754/f45964ab61244ffc9abc759c43fc2a42/FLAG917fdcdae [2020-10-20 00:24:59,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0be214754/f45964ab61244ffc9abc759c43fc2a42 [2020-10-20 00:24:59,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:24:59,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:24:59,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:24:59,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:24:59,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:24:59,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:24:59" (1/1) ... [2020-10-20 00:24:59,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a48641a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:24:59, skipping insertion in model container [2020-10-20 00:24:59,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:24:59" (1/1) ... [2020-10-20 00:24:59,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:24:59,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:25:00,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:25:00,219 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:25:00,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:25:00,729 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:25:00,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00 WrapperNode [2020-10-20 00:25:00,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:25:00,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:25:00,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:25:00,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:25:00,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:25:00,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:25:00,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:25:00,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:25:00,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... [2020-10-20 00:25:00,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:25:00,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:25:00,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:25:00,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:25:00,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:25:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:25:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:25:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:25:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:25:01,164 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:25:01,165 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:25:01,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:25:01 BoogieIcfgContainer [2020-10-20 00:25:01,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:25:01,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:25:01,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:25:01,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:25:01,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:24:59" (1/3) ... [2020-10-20 00:25:01,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18025579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:25:01, skipping insertion in model container [2020-10-20 00:25:01,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:25:00" (2/3) ... [2020-10-20 00:25:01,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18025579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:25:01, skipping insertion in model container [2020-10-20 00:25:01,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:25:01" (3/3) ... [2020-10-20 00:25:01,177 INFO L111 eAbstractionObserver]: Analyzing ICFG fmax.i [2020-10-20 00:25:01,192 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:25:01,200 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-20 00:25:01,217 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 00:25:01,253 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:25:01,253 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:25:01,253 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:25:01,253 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:25:01,254 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:25:01,254 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:25:01,254 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:25:01,257 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:25:01,292 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-10-20 00:25:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 00:25:01,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:25:01,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 00:25:01,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:25:01,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:25:01,307 INFO L82 PathProgramCache]: Analyzing trace with hash 889506790, now seen corresponding path program 1 times [2020-10-20 00:25:01,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:25:01,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710384451] [2020-10-20 00:25:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:25:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:25:01,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 00:25:01,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:25:01,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:25:01,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:25:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:25:01,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710384451] [2020-10-20 00:25:01,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:25:01,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-20 00:25:01,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141746811] [2020-10-20 00:25:01,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 00:25:01,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:25:01,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 00:25:01,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:25:01,530 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 4 states. [2020-10-20 00:25:01,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:25:01,588 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-10-20 00:25:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:25:01,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-20 00:25:01,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:25:01,598 INFO L225 Difference]: With dead ends: 41 [2020-10-20 00:25:01,598 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:25:01,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:25:01,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:25:01,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:25:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:25:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:25:01,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-10-20 00:25:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:25:01,627 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:25:01,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 00:25:01,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:25:01,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:25:01,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:25:01,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:25:01,884 INFO L274 CegarLoopResult]: For program point L877-12(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,885 INFO L274 CegarLoopResult]: For program point L877-14(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,885 INFO L274 CegarLoopResult]: For program point L877-15(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,885 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,885 INFO L274 CegarLoopResult]: For program point L878(line 878) no Hoare annotation was computed. [2020-10-20 00:25:01,885 INFO L274 CegarLoopResult]: For program point L878-1(line 878) no Hoare annotation was computed. [2020-10-20 00:25:01,886 INFO L270 CegarLoopResult]: At program point L878-3(line 878) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-20 00:25:01,886 INFO L274 CegarLoopResult]: For program point L878-4(line 878) no Hoare annotation was computed. [2020-10-20 00:25:01,886 INFO L274 CegarLoopResult]: For program point L878-5(line 878) no Hoare annotation was computed. [2020-10-20 00:25:01,886 INFO L270 CegarLoopResult]: At program point L878-7(line 878) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-20 00:25:01,886 INFO L274 CegarLoopResult]: For program point L878-8(line 878) no Hoare annotation was computed. [2020-10-20 00:25:01,886 INFO L274 CegarLoopResult]: For program point L878-9(line 878) no Hoare annotation was computed. [2020-10-20 00:25:01,887 INFO L270 CegarLoopResult]: At program point L878-11(line 878) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-20 00:25:01,887 INFO L274 CegarLoopResult]: For program point L878-12(line 878) no Hoare annotation was computed. [2020-10-20 00:25:01,887 INFO L274 CegarLoopResult]: For program point L878-13(line 878) no Hoare annotation was computed. [2020-10-20 00:25:01,887 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:25:01,887 INFO L270 CegarLoopResult]: At program point L878-15(lines 1 886) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-20 00:25:01,887 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:25:01,888 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:25:01,888 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,888 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:25:01,888 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,888 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,888 INFO L274 CegarLoopResult]: For program point L877(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,889 INFO L274 CegarLoopResult]: For program point L877-2(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,889 INFO L274 CegarLoopResult]: For program point L877-3(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,889 INFO L274 CegarLoopResult]: For program point L877-4(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,889 INFO L274 CegarLoopResult]: For program point L877-6(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,889 INFO L274 CegarLoopResult]: For program point L877-7(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,889 INFO L274 CegarLoopResult]: For program point L877-8(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,889 INFO L274 CegarLoopResult]: For program point L877-10(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,890 INFO L274 CegarLoopResult]: For program point L877-11(line 877) no Hoare annotation was computed. [2020-10-20 00:25:01,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:25:01 BoogieIcfgContainer [2020-10-20 00:25:01,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:25:01,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:25:01,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:25:01,918 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:25:01,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:25:01" (3/4) ... [2020-10-20 00:25:01,923 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:25:01,944 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-20 00:25:01,945 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 00:25:01,952 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 00:25:01,953 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:25:01,953 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:25:02,010 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:25:02,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:25:02,013 INFO L168 Benchmark]: Toolchain (without parser) took 2440.80 ms. Allocated memory was 41.4 MB in the beginning and 57.7 MB in the end (delta: 16.3 MB). Free memory was 18.7 MB in the beginning and 11.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 23.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:25:02,014 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 32.0 MB. Free memory was 8.9 MB in the beginning and 8.8 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:25:02,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1152.43 ms. Allocated memory was 41.4 MB in the beginning and 53.0 MB in the end (delta: 11.5 MB). Free memory was 17.8 MB in the beginning and 12.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 18.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:25:02,015 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.92 ms. Allocated memory is still 53.0 MB. Free memory was 12.9 MB in the beginning and 10.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:25:02,016 INFO L168 Benchmark]: Boogie Preprocessor took 36.33 ms. Allocated memory is still 53.0 MB. Free memory was 10.4 MB in the beginning and 36.6 MB in the end (delta: -26.2 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:25:02,017 INFO L168 Benchmark]: RCFGBuilder took 333.36 ms. Allocated memory is still 53.0 MB. Free memory was 36.6 MB in the beginning and 20.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:25:02,018 INFO L168 Benchmark]: TraceAbstraction took 748.75 ms. Allocated memory was 53.0 MB in the beginning and 57.7 MB in the end (delta: 4.7 MB). Free memory was 20.4 MB in the beginning and 14.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:25:02,018 INFO L168 Benchmark]: Witness Printer took 93.03 ms. Allocated memory is still 57.7 MB. Free memory was 14.9 MB in the beginning and 11.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:25:02,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 32.0 MB. Free memory was 8.9 MB in the beginning and 8.8 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 1152.43 ms. Allocated memory was 41.4 MB in the beginning and 53.0 MB in the end (delta: 11.5 MB). Free memory was 17.8 MB in the beginning and 12.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 18.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 64.92 ms. Allocated memory is still 53.0 MB. Free memory was 12.9 MB in the beginning and 10.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 36.33 ms. Allocated memory is still 53.0 MB. Free memory was 10.4 MB in the beginning and 36.6 MB in the end (delta: -26.2 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 333.36 ms. Allocated memory is still 53.0 MB. Free memory was 36.6 MB in the beginning and 20.9 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 748.75 ms. Allocated memory was 53.0 MB in the beginning and 57.7 MB in the end (delta: 4.7 MB). Free memory was 20.4 MB in the beginning and 14.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 14.3 GB. * Witness Printer took 93.03 ms. Allocated memory is still 57.7 MB. Free memory was 14.9 MB in the beginning and 11.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 877]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 877]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 877]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 877]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 12 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 4 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...