./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF --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 b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:00:46,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:00:46,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:00:46,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:00:46,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:00:46,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:00:46,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:00:46,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:00:46,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:00:46,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:00:46,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:00:46,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:00:46,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:00:46,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:00:46,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:00:46,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:00:46,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:00:46,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:00:46,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:00:46,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:00:46,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:00:46,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:00:46,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:00:46,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:00:46,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:00:46,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:00:46,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:00:46,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:00:46,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:00:46,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:00:46,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:00:46,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:00:46,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:00:46,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:00:46,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:00:46,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:00:46,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:00:46,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:00:46,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:00:46,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:00:46,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:00:46,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:00:46,234 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:00:46,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:00:46,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:00:46,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:00:46,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:00:46,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:00:46,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:00:46,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:00:46,245 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:00:46,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:00:46,246 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:00:46,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:00:46,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:00:46,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:00:46,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:00:46,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:00:46,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:00:46,248 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:00:46,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:00:46,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:00:46,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:00:46,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:00:46,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:00:46,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:00:46,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:00:46,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:00:46,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:00:46,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:00:46,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:00:46,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:00:46,254 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:00:46,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:00:46,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:00:46,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:00:46,255 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 [2021-11-20 06:00:46,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:00:46,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:00:46,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:00:46,572 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:00:46,573 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:00:46,575 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-11-20 06:00:46,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data/8057aac60/492abe267e9249af9a8ed1b3dce6904c/FLAG1222f7cb9 [2021-11-20 06:00:47,380 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:00:47,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-11-20 06:00:47,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data/8057aac60/492abe267e9249af9a8ed1b3dce6904c/FLAG1222f7cb9 [2021-11-20 06:00:47,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data/8057aac60/492abe267e9249af9a8ed1b3dce6904c [2021-11-20 06:00:47,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:00:47,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:00:47,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:00:47,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:00:47,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:00:47,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:47" (1/1) ... [2021-11-20 06:00:47,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290216d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:47, skipping insertion in model container [2021-11-20 06:00:47,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:47" (1/1) ... [2021-11-20 06:00:47,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:00:47,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:00:48,123 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:1784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$49(StandardFunctionHandler.java:414) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) 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:539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2021) 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:1633) 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:1069) 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:1610) 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:1069) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) 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:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) 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) [2021-11-20 06:00:48,130 INFO L158 Benchmark]: Toolchain (without parser) took 498.31ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 74.5MB in the end (delta: -8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:00:48,131 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:00:48,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.60ms. Allocated memory is still 98.6MB. Free memory was 66.1MB in the beginning and 74.5MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:00:48,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.60ms. Allocated memory is still 98.6MB. Free memory was 66.1MB in the beginning and 74.5MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF --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 b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:00:50,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:00:50,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:00:50,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:00:50,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:00:50,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:00:50,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:00:51,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:00:51,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:00:51,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:00:51,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:00:51,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:00:51,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:00:51,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:00:51,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:00:51,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:00:51,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:00:51,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:00:51,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:00:51,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:00:51,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:00:51,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:00:51,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:00:51,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:00:51,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:00:51,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:00:51,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:00:51,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:00:51,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:00:51,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:00:51,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:00:51,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:00:51,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:00:51,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:00:51,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:00:51,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:00:51,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:00:51,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:00:51,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:00:51,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:00:51,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:00:51,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 06:00:51,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:00:51,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:00:51,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:00:51,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:00:51,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:00:51,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:00:51,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:00:51,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:00:51,149 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:00:51,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:00:51,151 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:00:51,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:00:51,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:00:51,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:00:51,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:00:51,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:00:51,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:00:51,152 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:00:51,153 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:00:51,153 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:00:51,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:00:51,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:00:51,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:00:51,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:00:51,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:00:51,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:00:51,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:00:51,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:00:51,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:00:51,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:00:51,156 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:00:51,156 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:00:51,157 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:00:51,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:00:51,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:00:51,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:00:51,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:00:51,158 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 [2021-11-20 06:00:51,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:00:51,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:00:51,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:00:51,699 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:00:51,700 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:00:51,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-11-20 06:00:51,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data/e9698896f/d6215f437969443696de064af527ee8a/FLAG6c3d29f26 [2021-11-20 06:00:52,647 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:00:52,648 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-11-20 06:00:52,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data/e9698896f/d6215f437969443696de064af527ee8a/FLAG6c3d29f26 [2021-11-20 06:00:52,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/data/e9698896f/d6215f437969443696de064af527ee8a [2021-11-20 06:00:52,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:00:52,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:00:52,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:00:52,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:00:52,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:00:52,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:52" (1/1) ... [2021-11-20 06:00:52,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ea0a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:52, skipping insertion in model container [2021-11-20 06:00:52,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:52" (1/1) ... [2021-11-20 06:00:52,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:00:52,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:00:53,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/sv-benchmarks/c/float-newlib/double_req_bl_0876.c[14628,14641] [2021-11-20 06:00:53,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:00:53,391 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:00:53,523 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/sv-benchmarks/c/float-newlib/double_req_bl_0876.c[14628,14641] [2021-11-20 06:00:53,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:00:53,567 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:00:53,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53 WrapperNode [2021-11-20 06:00:53,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:00:53,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:00:53,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:00:53,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:00:53,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,712 INFO L137 Inliner]: procedures = 26, calls = 169, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 755 [2021-11-20 06:00:53,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:00:53,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:00:53,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:00:53,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:00:53,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:00:53,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:00:53,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:00:53,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:00:53,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (1/1) ... [2021-11-20 06:00:53,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:00:53,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:00:53,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:00:53,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:00:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:00:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-20 06:00:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-20 06:00:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 06:00:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:00:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-20 06:00:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-20 06:00:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-20 06:00:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 06:00:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2021-11-20 06:00:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2021-11-20 06:00:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:00:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:00:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 06:00:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:00:54,269 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:00:54,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:01:51,185 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:01:51,200 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:01:51,200 INFO L301 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-20 06:01:51,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:51 BoogieIcfgContainer [2021-11-20 06:01:51,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:01:51,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:01:51,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:01:51,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:01:51,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:00:52" (1/3) ... [2021-11-20 06:01:51,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be0fe92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:51, skipping insertion in model container [2021-11-20 06:01:51,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:53" (2/3) ... [2021-11-20 06:01:51,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be0fe92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:01:51, skipping insertion in model container [2021-11-20 06:01:51,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:51" (3/3) ... [2021-11-20 06:01:51,216 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0876.c [2021-11-20 06:01:51,224 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:01:51,224 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:01:51,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:01:51,305 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-11-20 06:01:51,305 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:01:51,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 204 states have (on average 1.7009803921568627) internal successors, (347), 205 states have internal predecessors, (347), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 06:01:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 06:01:51,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:51,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:51,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:51,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:51,354 INFO L85 PathProgramCache]: Analyzing trace with hash -288078456, now seen corresponding path program 1 times [2021-11-20 06:01:51,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:01:51,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088802474] [2021-11-20 06:01:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:51,373 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:01:51,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:01:51,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:01:51,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:01:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:51,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 06:01:51,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:01:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:52,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:01:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:52,388 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:01:52,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088802474] [2021-11-20 06:01:52,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088802474] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:52,390 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:52,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 06:01:52,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101622269] [2021-11-20 06:01:52,393 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:52,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:01:52,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:01:52,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:01:52,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:01:52,455 INFO L87 Difference]: Start difference. First operand has 213 states, 204 states have (on average 1.7009803921568627) internal successors, (347), 205 states have internal predecessors, (347), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:01:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:52,548 INFO L93 Difference]: Finished difference Result 423 states and 715 transitions. [2021-11-20 06:01:52,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:01:52,554 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-11-20 06:01:52,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:52,565 INFO L225 Difference]: With dead ends: 423 [2021-11-20 06:01:52,565 INFO L226 Difference]: Without dead ends: 209 [2021-11-20 06:01:52,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:01:52,574 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:52,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:01:52,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-20 06:01:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-11-20 06:01:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 201 states have (on average 1.3980099502487562) internal successors, (281), 201 states have internal predecessors, (281), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 06:01:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 291 transitions. [2021-11-20 06:01:52,649 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 291 transitions. Word has length 18 [2021-11-20 06:01:52,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:52,649 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 291 transitions. [2021-11-20 06:01:52,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:01:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 291 transitions. [2021-11-20 06:01:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 06:01:52,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:52,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:01:52,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:01:52,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:01:52,857 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:01:52,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:01:52,858 INFO L85 PathProgramCache]: Analyzing trace with hash 430153058, now seen corresponding path program 1 times [2021-11-20 06:01:52,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:01:52,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695955793] [2021-11-20 06:01:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:01:52,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:01:52,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:01:52,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:01:52,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 06:01:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:01:53,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:01:53,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:01:55,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:55,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:01:59,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:01:59,893 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:01:59,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695955793] [2021-11-20 06:01:59,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695955793] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:01:59,894 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:01:59,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 06:01:59,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827587195] [2021-11-20 06:01:59,895 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:01:59,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:01:59,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:01:59,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:01:59,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:01:59,899 INFO L87 Difference]: Start difference. First operand 209 states and 291 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:01:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:01:59,954 INFO L93 Difference]: Finished difference Result 218 states and 300 transitions. [2021-11-20 06:01:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:01:59,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2021-11-20 06:01:59,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:01:59,958 INFO L225 Difference]: With dead ends: 218 [2021-11-20 06:01:59,959 INFO L226 Difference]: Without dead ends: 209 [2021-11-20 06:01:59,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:01:59,962 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 0 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:01:59,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1933 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 45 Unchecked, 0.0s Time] [2021-11-20 06:01:59,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-20 06:01:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-11-20 06:01:59,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 201 states have (on average 1.3930348258706469) internal successors, (280), 201 states have internal predecessors, (280), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 06:01:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2021-11-20 06:01:59,985 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 22 [2021-11-20 06:01:59,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:01:59,987 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2021-11-20 06:01:59,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:01:59,988 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2021-11-20 06:01:59,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:01:59,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:01:59,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:02:00,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:02:00,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:02:00,214 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:00,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:00,215 INFO L85 PathProgramCache]: Analyzing trace with hash 2129176519, now seen corresponding path program 1 times [2021-11-20 06:02:00,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:02:00,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724937292] [2021-11-20 06:02:00,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:00,216 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:02:00,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:02:00,218 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:02:00,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 06:02:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:00,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-20 06:02:00,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:02:01,447 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 [2021-11-20 06:02:06,280 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:02:06,280 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 [2021-11-20 06:02:08,939 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_58| (_ BitVec 64)) (v_arrayElimCell_1 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_59| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (fp.lt (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_58|)) v_arrayElimCell_1))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ((_ to_fp 11 53) currentRoundingMode 1.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_58|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_58|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_58|)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_59|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_59|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_59|))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_59|) |c_ULTIMATE.start___ieee754_pow_~hx~2#1|))) is different from true [2021-11-20 06:02:13,147 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_58| (_ BitVec 64)) (v_arrayElimCell_1 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_59| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (fp.lt (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_58|)) v_arrayElimCell_1))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ((_ to_fp 11 53) currentRoundingMode 1.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_58|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_58|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_58|)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_59|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_59|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_59|))) (= |c_ULTIMATE.start___ieee754_pow_~ix~0#1| (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_59|))))) is different from true [2021-11-20 06:02:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:02:14,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:02:22,674 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 [2021-11-20 06:02:22,727 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 [2021-11-20 06:02:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:02:26,166 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:02:26,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724937292] [2021-11-20 06:02:26,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724937292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:02:26,167 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:02:26,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-20 06:02:26,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927034638] [2021-11-20 06:02:26,168 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:02:26,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 06:02:26,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:02:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 06:02:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=205, Unknown=2, NotChecked=58, Total=306 [2021-11-20 06:02:26,170 INFO L87 Difference]: Start difference. First operand 209 states and 290 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 16 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 06:02:33,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:02:33,478 INFO L93 Difference]: Finished difference Result 218 states and 299 transitions. [2021-11-20 06:02:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:02:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 16 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2021-11-20 06:02:33,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:02:33,482 INFO L225 Difference]: With dead ends: 218 [2021-11-20 06:02:33,482 INFO L226 Difference]: Without dead ends: 209 [2021-11-20 06:02:33,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=53, Invalid=295, Unknown=2, NotChecked=70, Total=420 [2021-11-20 06:02:33,485 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 3 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 621 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:02:33,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 2716 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 621 Unchecked, 0.9s Time] [2021-11-20 06:02:33,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-20 06:02:33,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-11-20 06:02:33,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 201 states have (on average 1.3880597014925373) internal successors, (279), 201 states have internal predecessors, (279), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 06:02:33,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 289 transitions. [2021-11-20 06:02:33,502 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 289 transitions. Word has length 24 [2021-11-20 06:02:33,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:02:33,503 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 289 transitions. [2021-11-20 06:02:33,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 16 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 06:02:33,503 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 289 transitions. [2021-11-20 06:02:33,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:02:33,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:02:33,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:02:33,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:02:33,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:02:33,723 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:02:33,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:02:33,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2131023561, now seen corresponding path program 1 times [2021-11-20 06:02:33,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:02:33,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361280766] [2021-11-20 06:02:33,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:02:33,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:02:33,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:02:33,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:02:33,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 06:02:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:02:34,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 06:02:34,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:02:34,946 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 [2021-11-20 06:02:40,150 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-11-20 06:02:40,151 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 [2021-11-20 06:02:44,139 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:02:44,140 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 98 treesize of output 98 [2021-11-20 06:02:44,444 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 18 treesize of output 12 [2021-11-20 06:02:50,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:02:50,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:03:08,058 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:03:08,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 164 treesize of output 148 [2021-11-20 06:03:08,993 INFO L354 Elim1Store]: treesize reduction 18, result has 65.4 percent of original size [2021-11-20 06:03:08,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 148 treesize of output 166 [2021-11-20 06:03:09,555 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:03:09,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 166 treesize of output 184 [2021-11-20 06:03:09,590 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:03:09,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361280766] [2021-11-20 06:03:09,591 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-11-20 06:03:09,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1319663223] [2021-11-20 06:03:09,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:03:09,591 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-20 06:03:09,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/cvc4 [2021-11-20 06:03:09,594 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-20 06:03:09,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-20 06:03:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:03:15,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-20 06:03:15,200 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@12437619 [2021-11-20 06:03:15,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391907147] [2021-11-20 06:03:15,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:03:15,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:03:15,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:03:15,204 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:03:15,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 06:03:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:03:15,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 06:03:15,340 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@12437619 [2021-11-20 06:03:15,340 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:03:15,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-20 06:03:15,340 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-20 06:03:15,341 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-20 06:03:15,347 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:03:15,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:03:15,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:03:15,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:03:15,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/cvc4 --incremental --print-success --lang smt [2021-11-20 06:03:15,964 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-20 06:03:15,973 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:03:16,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:03:16 BoogieIcfgContainer [2021-11-20 06:03:16,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:03:16,006 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:03:16,006 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:03:16,006 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:03:16,007 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:01:51" (3/4) ... [2021-11-20 06:03:16,011 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:03:16,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:03:16,014 INFO L158 Benchmark]: Toolchain (without parser) took 143143.96ms. Allocated memory was 73.4MB in the beginning and 113.2MB in the end (delta: 39.8MB). Free memory was 53.7MB in the beginning and 86.9MB in the end (delta: -33.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-11-20 06:03:16,015 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 73.4MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:03:16,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 698.78ms. Allocated memory is still 73.4MB. Free memory was 53.4MB in the beginning and 42.9MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 06:03:16,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.23ms. Allocated memory is still 73.4MB. Free memory was 42.9MB in the beginning and 38.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:03:16,019 INFO L158 Benchmark]: Boogie Preprocessor took 131.82ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 33.7MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:03:16,022 INFO L158 Benchmark]: RCFGBuilder took 57358.50ms. Allocated memory was 73.4MB in the beginning and 113.2MB in the end (delta: 39.8MB). Free memory was 33.7MB in the beginning and 70.9MB in the end (delta: -37.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2021-11-20 06:03:16,022 INFO L158 Benchmark]: TraceAbstraction took 84798.24ms. Allocated memory is still 113.2MB. Free memory was 70.4MB in the beginning and 87.9MB in the end (delta: -17.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2021-11-20 06:03:16,023 INFO L158 Benchmark]: Witness Printer took 5.69ms. Allocated memory is still 113.2MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:03:16,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 73.4MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 698.78ms. Allocated memory is still 73.4MB. Free memory was 53.4MB in the beginning and 42.9MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.23ms. Allocated memory is still 73.4MB. Free memory was 42.9MB in the beginning and 38.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.82ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 33.7MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 57358.50ms. Allocated memory was 73.4MB in the beginning and 113.2MB in the end (delta: 39.8MB). Free memory was 33.7MB in the beginning and 70.9MB in the end (delta: -37.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 84798.24ms. Allocated memory is still 113.2MB. Free memory was 70.4MB in the beginning and 87.9MB in the end (delta: -17.6MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Witness Printer took 5.69ms. Allocated memory is still 113.2MB. Free memory was 87.9MB in the beginning and 86.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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; [L602] CALL, EXPR fabs_double(x) [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] RET, EXPR fabs_double(x) [L602] COND TRUE fabs_double(x) < 1.0 [L604] CALL, EXPR __ieee754_pow(x, y) [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] RET, EXPR __ieee754_pow(x, y) [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 3 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 84.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 4945 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 666 IncrementalHoareTripleChecker+Unchecked, 4085 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 860 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 23.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 68.3s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 145 ConstructedInterpolants, 61 QuantifiedInterpolants, 2310 SizeOfPredicates, 43 NumberOfNonLiveVariables, 541 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 [2021-11-20 06:03:16,265 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-20 06:03:16,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9be211f-9e8b-46c1-8c2b-160446edf6f4/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN