./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0876.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0876.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 91622766e67b65f9ff751d0df1362a9ea58f5ab4 ..................................................................................................................................................................... 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-newlib/double_req_bl_0876.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 91622766e67b65f9ff751d0df1362a9ea58f5ab4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:35:31,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:35:31,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:35:31,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:35:31,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:35:31,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:35:31,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:35:31,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:35:31,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:35:31,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:35:31,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:35:31,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:35:31,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:35:31,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:35:31,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:35:31,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:35:31,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:35:31,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:35:31,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:35:31,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:35:31,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:35:31,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:35:31,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:35:31,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:35:31,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:35:31,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:35:31,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:35:31,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:35:31,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:35:31,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:35:31,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:35:31,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:35:32,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:35:32,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:35:32,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:35:32,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:35:32,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:35:32,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:35:32,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:35:32,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:35:32,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:35:32,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:35:32,043 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:35:32,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:35:32,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:35:32,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:35:32,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:35:32,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:35:32,047 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:35:32,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:35:32,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:35:32,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:35:32,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:35:32,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:35:32,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:35:32,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:35:32,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:35:32,049 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:35:32,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:35:32,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:35:32,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:35:32,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:35:32,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:35:32,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:35:32,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:35:32,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:35:32,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:35:32,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:35:32,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:35:32,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:35:32,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:35:32,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:35:32,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91622766e67b65f9ff751d0df1362a9ea58f5ab4 [2021-08-26 01:35:32,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:35:32,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:35:32,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:35:32,381 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:35:32,382 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:35:32,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-08-26 01:35:32,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/229227252/04eaa822b05b4e7daf0ac8b1d9bc9c6d/FLAG10b6e2263 [2021-08-26 01:35:33,011 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:35:33,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-08-26 01:35:33,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/229227252/04eaa822b05b4e7daf0ac8b1d9bc9c6d/FLAG10b6e2263 [2021-08-26 01:35:33,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/229227252/04eaa822b05b4e7daf0ac8b1d9bc9c6d [2021-08-26 01:35:33,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:35:33,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:35:33,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:35:33,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:35:33,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:35:33,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:35:33" (1/1) ... [2021-08-26 01:35:33,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ce26b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:33, skipping insertion in model container [2021-08-26 01:35:33,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:35:33" (1/1) ... [2021-08-26 01:35:33,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:35:33,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:35:33,681 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$41(StandardFunctionHandler.java:360) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1978) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1607) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) 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.visit(CHandler.java:1584) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) 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:1430) 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:3219) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) 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:63) [2021-08-26 01:35:33,686 INFO L168 Benchmark]: Toolchain (without parser) took 233.62 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 26.5 MB in the end (delta: -154.5 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:35:33,687 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 32.7 MB in the end (delta: 33.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:35:33,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.40 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 26.5 MB in the end (delta: -315.2 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:35:33,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 32.7 MB in the end (delta: 33.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.40 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 26.5 MB in the end (delta: -315.2 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:35:35,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:35:35,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:35:35,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:35:35,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:35:35,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:35:35,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:35:35,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:35:35,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:35:35,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:35:35,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:35:35,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:35:35,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:35:35,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:35:35,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:35:35,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:35:35,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:35:35,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:35:35,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:35:35,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:35:35,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:35:35,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:35:35,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:35:35,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:35:35,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:35:35,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:35:35,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:35:35,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:35:35,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:35:35,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:35:35,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:35:35,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:35:35,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:35:35,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:35:35,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:35:35,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:35:35,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:35:35,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:35:35,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:35:35,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:35:35,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:35:35,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:35:35,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:35:35,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:35:35,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:35:35,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:35:35,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:35:35,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:35:35,599 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:35:35,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:35:35,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:35:35,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:35:35,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:35:35,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:35:35,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:35:35,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:35:35,601 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:35:35,601 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:35:35,601 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:35:35,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:35:35,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:35:35,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:35:35,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:35:35,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:35:35,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:35:35,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:35:35,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:35:35,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:35:35,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:35:35,603 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:35:35,603 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:35:35,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:35:35,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:35:35,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:35:35,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91622766e67b65f9ff751d0df1362a9ea58f5ab4 [2021-08-26 01:35:35,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:35:35,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:35:35,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:35:35,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:35:35,948 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:35:35,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-08-26 01:35:36,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d3839278/aa8a6933104c465b9fa905e0ef116f03/FLAG1f1a3489e [2021-08-26 01:35:36,547 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:35:36,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-08-26 01:35:36,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d3839278/aa8a6933104c465b9fa905e0ef116f03/FLAG1f1a3489e [2021-08-26 01:35:36,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d3839278/aa8a6933104c465b9fa905e0ef116f03 [2021-08-26 01:35:36,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:35:37,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:35:37,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:35:37,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:35:37,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:35:37,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:35:36" (1/1) ... [2021-08-26 01:35:37,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5772d48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37, skipping insertion in model container [2021-08-26 01:35:37,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:35:36" (1/1) ... [2021-08-26 01:35:37,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:35:37,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:35:37,324 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-newlib/double_req_bl_0876.c[14628,14641] [2021-08-26 01:35:37,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:35:37,356 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:35:37,444 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-newlib/double_req_bl_0876.c[14628,14641] [2021-08-26 01:35:37,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:35:37,469 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:35:37,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37 WrapperNode [2021-08-26 01:35:37,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:35:37,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:35:37,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:35:37,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:35:37,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:35:37,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:35:37,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:35:37,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:35:37,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:35:37,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:35:37,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:35:37,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:35:37,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (1/1) ... [2021-08-26 01:35:37,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:35:37,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:35:37,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:35:37,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:35:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:35:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:35:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:35:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:35:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-08-26 01:35:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:35:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:35:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:35:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:35:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:36:44,359 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:36:44,360 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-08-26 01:36:44,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:36:44 BoogieIcfgContainer [2021-08-26 01:36:44,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:36:44,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:36:44,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:36:44,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:36:44,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:35:36" (1/3) ... [2021-08-26 01:36:44,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360dec38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:36:44, skipping insertion in model container [2021-08-26 01:36:44,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:35:37" (2/3) ... [2021-08-26 01:36:44,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360dec38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:36:44, skipping insertion in model container [2021-08-26 01:36:44,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:36:44" (3/3) ... [2021-08-26 01:36:44,371 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0876.c [2021-08-26 01:36:44,376 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:36:44,377 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:36:44,414 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:36:44,419 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:36:44,419 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:36:44,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 221 states have (on average 1.7194570135746607) internal successors, (380), 222 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:44,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-26 01:36:44,440 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:36:44,440 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:36:44,441 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:36:44,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:36:44,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1484062990, now seen corresponding path program 1 times [2021-08-26 01:36:44,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:36:44,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322220177] [2021-08-26 01:36:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:36:44,479 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:36:44,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:36:44,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:36:44,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:36:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:36:44,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:36:44,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:36:45,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:36:45,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:36:46,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:36:46,032 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:36:46,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322220177] [2021-08-26 01:36:46,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322220177] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:36:46,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:36:46,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:36:46,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310458613] [2021-08-26 01:36:46,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:36:46,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:36:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:36:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:36:46,050 INFO L87 Difference]: Start difference. First operand has 223 states, 221 states have (on average 1.7194570135746607) internal successors, (380), 222 states have internal predecessors, (380), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:46,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:36:46,081 INFO L93 Difference]: Finished difference Result 444 states and 758 transitions. [2021-08-26 01:36:46,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:36:46,082 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2021-08-26 01:36:46,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:36:46,092 INFO L225 Difference]: With dead ends: 444 [2021-08-26 01:36:46,092 INFO L226 Difference]: Without dead ends: 219 [2021-08-26 01:36:46,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:36:46,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-08-26 01:36:46,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-08-26 01:36:46,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.3669724770642202) internal successors, (298), 218 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:46,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 298 transitions. [2021-08-26 01:36:46,140 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 298 transitions. Word has length 15 [2021-08-26 01:36:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:36:46,140 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 298 transitions. [2021-08-26 01:36:46,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:36:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 298 transitions. [2021-08-26 01:36:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 01:36:46,141 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:36:46,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:36:46,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 01:36:46,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:36:46,345 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:36:46,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:36:46,346 INFO L82 PathProgramCache]: Analyzing trace with hash 441555186, now seen corresponding path program 1 times [2021-08-26 01:36:46,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:36:46,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803329398] [2021-08-26 01:36:46,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:36:46,351 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:36:46,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:36:46,353 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) [2021-08-26 01:36:46,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:36:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:36:46,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:36:46,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:36:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:36:50,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:36:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:36:57,826 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:36:57,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803329398] [2021-08-26 01:36:57,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803329398] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:36:57,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:36:57,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-26 01:36:57,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071878166] [2021-08-26 01:36:57,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 01:36:57,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:36:57,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 01:36:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-26 01:36:57,829 INFO L87 Difference]: Start difference. First operand 219 states and 298 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:37:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:37:08,869 INFO L93 Difference]: Finished difference Result 354 states and 474 transitions. [2021-08-26 01:37:09,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 01:37:09,050 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 19 [2021-08-26 01:37:09,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:37:09,051 INFO L225 Difference]: With dead ends: 354 [2021-08-26 01:37:09,051 INFO L226 Difference]: Without dead ends: 154 [2021-08-26 01:37:09,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 7582.7ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-26 01:37:09,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-26 01:37:09,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 145. [2021-08-26 01:37:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 144 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:37:09,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 179 transitions. [2021-08-26 01:37:09,065 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 179 transitions. Word has length 19 [2021-08-26 01:37:09,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:37:09,066 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 179 transitions. [2021-08-26 01:37:09,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:37:09,066 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 179 transitions. [2021-08-26 01:37:09,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-26 01:37:09,067 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:37:09,067 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:37:09,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-26 01:37:09,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:37:09,269 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:37:09,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:37:09,270 INFO L82 PathProgramCache]: Analyzing trace with hash 654842519, now seen corresponding path program 1 times [2021-08-26 01:37:09,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:37:09,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686952613] [2021-08-26 01:37:09,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:37:09,271 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:37:09,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:37:09,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:37:09,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 01:37:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:37:09,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-26 01:37:09,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:37:10,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-08-26 01:37:17,460 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:37:17,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 43 [2021-08-26 01:37:34,871 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_74| (_ BitVec 64)) (currentRoundingMode RoundingMode) (|v_skolemized_q#valueAsBitvector_75| (_ BitVec 64))) (and (fp.lt (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_74|)) v_arrayElimCell_1))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ((_ to_fp 11 53) currentRoundingMode 1.0)) (= (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_75|)) c_ULTIMATE.start___ieee754_pow_~ix~0) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_75|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_75|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_75|)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_74|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_74|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_74|))))) is different from true [2021-08-26 01:37:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:37:36,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:37:52,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2021-08-26 01:37:52,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2021-08-26 01:38:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:38:02,847 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:38:02,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686952613] [2021-08-26 01:38:02,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686952613] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:38:02,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:38:02,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-08-26 01:38:02,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310548302] [2021-08-26 01:38:02,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-26 01:38:02,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:38:02,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-26 01:38:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=228, Unknown=6, NotChecked=30, Total=306 [2021-08-26 01:38:02,850 INFO L87 Difference]: Start difference. First operand 145 states and 179 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:38:34,999 WARN L207 SmtUtils]: Spent 8.89 s on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2021-08-26 01:39:38,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:39:38,295 INFO L93 Difference]: Finished difference Result 173 states and 207 transitions. [2021-08-26 01:39:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-26 01:39:38,297 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 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 21 [2021-08-26 01:39:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:39:38,299 INFO L225 Difference]: With dead ends: 173 [2021-08-26 01:39:38,299 INFO L226 Difference]: Without dead ends: 163 [2021-08-26 01:39:38,299 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 69658.4ms TimeCoverageRelationStatistics Valid=138, Invalid=510, Unknown=6, NotChecked=48, Total=702 [2021-08-26 01:39:38,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-08-26 01:39:38,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 145. [2021-08-26 01:39:38,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.2222222222222223) internal successors, (176), 144 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:38,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 176 transitions. [2021-08-26 01:39:38,308 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 176 transitions. Word has length 21 [2021-08-26 01:39:38,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:39:38,309 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 176 transitions. [2021-08-26 01:39:38,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:39:38,309 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 176 transitions. [2021-08-26 01:39:38,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-26 01:39:38,310 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:39:38,310 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:39:38,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 01:39:38,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:39:38,524 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:39:38,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:39:38,524 INFO L82 PathProgramCache]: Analyzing trace with hash 656689561, now seen corresponding path program 1 times [2021-08-26 01:39:38,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:39:38,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385154962] [2021-08-26 01:39:38,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:39:38,525 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:39:38,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:39:38,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:39:38,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-26 01:39:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:39:39,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-26 01:39:39,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:39:41,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-08-26 01:39:49,162 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-08-26 01:39:49,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 92 [2021-08-26 01:39:54,826 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:39:54,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-08-26 01:39:55,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-08-26 01:40:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:40:05,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:40:48,114 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:40:48,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385154962] [2021-08-26 01:40:48,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:40:48,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [796075404] [2021-08-26 01:40:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:40:48,116 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-26 01:40:48,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-26 01:40:48,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-26 01:40:48,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-08-26 01:40:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:40:55,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-26 01:40:55,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:40:56,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-26 01:41:14,143 INFO L354 Elim1Store]: treesize reduction 27, result has 46.0 percent of original size [2021-08-26 01:41:14,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 105 [2021-08-26 01:41:30,514 INFO L354 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2021-08-26 01:41:30,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 107 [2021-08-26 01:41:36,404 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:41:36,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-08-26 01:41:36,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-08-26 01:41:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:41:54,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:42:53,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:42:53,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913915893] [2021-08-26 01:42:53,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:42:53,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 01:42:53,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:42:53,423 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 01:42:53,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-26 01:42:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:42:53,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-26 01:42:53,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:42:54,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-08-26 01:42:59,751 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-08-26 01:42:59,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 92 [2021-08-26 01:43:07,183 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:43:07,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-08-26 01:43:07,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-08-26 01:43:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:43:29,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:44:02,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:44:02,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:44:02,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-26 01:44:02,200 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-26 01:44:02,200 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-26 01:44:02,203 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:44:02,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-26 01:44:02,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-08-26 01:44:02,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-08-26 01:44:02,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-26 01:44:02,809 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:44:02,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:44:02 BoogieIcfgContainer [2021-08-26 01:44:02,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:44:02,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:44:02,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:44:02,828 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:44:02,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:36:44" (3/4) ... [2021-08-26 01:44:02,831 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:44:02,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:44:02,833 INFO L168 Benchmark]: Toolchain (without parser) took 505832.32 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 36.0 MB in the beginning and 37.3 MB in the end (delta: -1.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:44:02,833 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 40.4 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:44:02,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.81 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 32.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:44:02,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.25 ms. Allocated memory is still 58.7 MB. Free memory was 32.3 MB in the beginning and 27.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:44:02,834 INFO L168 Benchmark]: Boogie Preprocessor took 107.54 ms. Allocated memory is still 58.7 MB. Free memory was 27.3 MB in the beginning and 22.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:44:02,835 INFO L168 Benchmark]: RCFGBuilder took 66661.71 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 22.1 MB in the beginning and 46.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:44:02,835 INFO L168 Benchmark]: TraceAbstraction took 438464.01 ms. Allocated memory is still 75.5 MB. Free memory was 45.3 MB in the beginning and 37.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:44:02,835 INFO L168 Benchmark]: Witness Printer took 3.75 ms. Allocated memory is still 75.5 MB. Free memory was 37.9 MB in the beginning and 37.3 MB in the end (delta: 564.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:44:02,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 40.4 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 468.81 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 32.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 119.25 ms. Allocated memory is still 58.7 MB. Free memory was 32.3 MB in the beginning and 27.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.54 ms. Allocated memory is still 58.7 MB. Free memory was 27.3 MB in the beginning and 22.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 66661.71 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 22.1 MB in the beginning and 46.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 438464.01 ms. Allocated memory is still 75.5 MB. Free memory was 45.3 MB in the beginning and 37.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.75 ms. Allocated memory is still 75.5 MB. Free memory was 37.9 MB in the beginning and 37.3 MB in the end (delta: 564.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 608]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40-L42] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L95] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L222-L261] static const double bp_pow[] = { 1.0, 1.5, }, dp_h_pow[] = { 0.0, 5.84962487220764160156e-01, }, dp_l_pow[] = { 0.0, 1.35003920212974897128e-08, }, zero_pow = 0.0, one_pow = 1.0, two_pow = 2.0, two53_pow = 9007199254740992.0, huge_pow = 1.0e300, tiny_pow = 1.0e-300, L1_pow = 5.99999999999994648725e-01, L2_pow = 4.28571428578550184252e-01, L3_pow = 3.33333329818377432918e-01, L4_pow = 2.72728123808534006489e-01, L5_pow = 2.30660745775561754067e-01, L6_pow = 2.06975017800338417784e-01, P1_pow = 1.66666666666666019037e-01, P2_pow = -2.77777777770155933842e-03, P3_pow = 6.61375632143793436117e-05, P4_pow = -1.65339022054652515390e-06, P5_pow = 4.13813679705723846039e-08, lg2_pow = 6.93147180559945286227e-01, lg2_h_pow = 6.93147182464599609375e-01, lg2_l_pow = -1.90465429995776804525e-09, ovt_pow = 8.0085662595372944372e-0017, cp_pow = 9.61796693925975554329e-01, cp_h_pow = 9.61796700954437255859e-01, cp_l_pow = -7.02846165095275826516e-09, ivln2_pow = 1.44269504088896338700e+00, ivln2_h_pow = 1.44269502162933349609e+00, ivln2_l_pow = 1.92596299112661746887e-08; [L599] double x = __VERIFIER_nondet_double(); [L600] double y = 1.0 / 0.0; [L207] __uint32_t high; [L209] ieee_double_shape_type gh_u; [L210] gh_u.value = (x) [L211] EXPR gh_u.parts.msw [L211] (high) = gh_u.parts.msw [L214] ieee_double_shape_type sh_u; [L215] sh_u.value = (x) [L216] sh_u.parts.msw = (high & 0x7fffffff) [L217] EXPR sh_u.value [L217] (x) = sh_u.value [L219] return x; [L602] COND TRUE fabs_double(x) < 1.0 [L264] double z, ax, z_h, z_l, p_h, p_l; [L265] double y1, t1, t2, r, s, t, u, v, w; [L266] __int32_t i, j, k, yisint, n; [L267] __int32_t hx, hy, ix, iy; [L268] __uint32_t lx, ly; [L271] ieee_double_shape_type ew_u; [L272] ew_u.value = (x) [L273] EXPR ew_u.parts.msw [L273] (hx) = ew_u.parts.msw [L274] EXPR ew_u.parts.lsw [L274] (lx) = ew_u.parts.lsw [L277] ieee_double_shape_type ew_u; [L278] ew_u.value = (y) [L279] EXPR ew_u.parts.msw [L279] (hy) = ew_u.parts.msw [L280] EXPR ew_u.parts.lsw [L280] (ly) = ew_u.parts.lsw [L282] ix = hx & 0x7fffffff [L283] iy = hy & 0x7fffffff [L285] COND FALSE !((iy | ly) == 0) [L288-L289] COND TRUE ix > 0x7ff00000 || ((ix == 0x7ff00000) && (lx != 0)) || iy > 0x7ff00000 || ((iy == 0x7ff00000) && (ly != 0)) [L290] COND FALSE !(((ix - 0x3ff00000) | lx) == 0) [L293] return __builtin_nan(""); [L604] double res = __ieee754_pow(x, y); [L607] EXPR res == 0.0 && __signbit_double(res) == 0 [L607] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L608] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 223 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 438396.4ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 10.8ms, AutomataDifference: 106731.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 608 SDtfs, 804 SDslu, 2376 SDs, 0 SdLazy, 380 SolverSat, 29 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 73297.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 77241.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 53.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 106.9ms SsaConstructionTime, 636.6ms SatisfiabilityAnalysisTime, 65577.4ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 104 ConstructedInterpolants, 55 QuantifiedInterpolants, 1484 SizeOfPredicates, 26 NumberOfNonLiveVariables, 399 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:44:03,061 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-08-26 01:44:03,154 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 137 Received shutdown request...