./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3420d94795154cd5f059d8ec6bdcee482b4f1cb5d11f69298f0ab04296514804 .............................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3420d94795154cd5f059d8ec6bdcee482b4f1cb5d11f69298f0ab04296514804 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:23:23,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:23:23,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:23:23,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:23:23,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:23:23,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:23:23,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:23:23,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:23:23,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:23:23,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:23:23,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:23:23,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:23:23,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:23:23,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:23:23,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:23:23,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:23:23,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:23:23,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:23:23,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:23:23,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:23:23,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:23:23,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:23:23,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:23:23,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:23:23,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:23:23,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:23:23,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:23:23,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:23:23,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:23:23,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:23:23,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:23:23,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:23:23,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:23:23,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:23:23,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:23:23,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:23:23,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:23:23,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:23:23,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:23:23,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:23:23,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:23:23,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:23:23,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:23:23,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:23:23,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:23:23,427 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:23:23,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:23:23,428 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:23:23,428 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:23:23,429 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:23:23,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:23:23,429 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:23:23,431 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:23:23,431 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:23:23,431 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:23:23,432 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:23:23,432 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:23:23,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:23:23,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:23:23,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:23:23,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:23:23,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:23:23,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:23:23,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:23:23,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:23:23,436 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:23:23,436 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:23:23,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:23:23,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:23:23,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:23:23,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:23:23,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:23:23,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:23,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:23:23,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:23:23,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:23:23,442 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:23:23,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:23:23,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:23:23,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:23:23,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:23:23,443 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3420d94795154cd5f059d8ec6bdcee482b4f1cb5d11f69298f0ab04296514804 [2021-10-24 10:23:23,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:23:23,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:23:23,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:23:23,783 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:23:23,784 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:23:23,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2021-10-24 10:23:23,891 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data/36a71eb37/7e2ffbea748a4e56937b5ffc0eb5d034/FLAG09c3ebff5 [2021-10-24 10:23:24,562 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:23:24,563 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2021-10-24 10:23:24,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data/36a71eb37/7e2ffbea748a4e56937b5ffc0eb5d034/FLAG09c3ebff5 [2021-10-24 10:23:24,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data/36a71eb37/7e2ffbea748a4e56937b5ffc0eb5d034 [2021-10-24 10:23:24,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:23:24,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:23:24,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:24,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:23:24,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:23:24,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:24" (1/1) ... [2021-10-24 10:23:24,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bdc033a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:24, skipping insertion in model container [2021-10-24 10:23:24,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:24" (1/1) ... [2021-10-24 10:23:24,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:23:24,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:23:25,201 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$41(StandardFunctionHandler.java:360) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1978) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1607) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1584) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3218) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-24 10:23:25,208 INFO L168 Benchmark]: Toolchain (without parser) took 400.89 ms. Allocated memory is still 88.1 MB. Free memory was 56.4 MB in the beginning and 63.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:25,209 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:23:25,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.33 ms. Allocated memory is still 88.1 MB. Free memory was 56.2 MB in the beginning and 63.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:23:25,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.33 ms. Allocated memory is still 88.1 MB. Free memory was 56.2 MB in the beginning and 63.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:23:27,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:23:27,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:23:27,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:23:27,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:23:27,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:23:27,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:23:27,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:23:28,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:23:28,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:23:28,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:23:28,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:23:28,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:23:28,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:23:28,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:23:28,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:23:28,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:23:28,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:23:28,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:23:28,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:23:28,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:23:28,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:23:28,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:23:28,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:23:28,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:23:28,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:23:28,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:23:28,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:23:28,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:23:28,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:23:28,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:23:28,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:23:28,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:23:28,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:23:28,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:23:28,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:23:28,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:23:28,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:23:28,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:23:28,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:23:28,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:23:28,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:23:28,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:23:28,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:23:28,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:23:28,136 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:23:28,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:23:28,137 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:23:28,137 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:23:28,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:23:28,138 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:23:28,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:23:28,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:23:28,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:23:28,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:23:28,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:23:28,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:23:28,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:23:28,143 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:23:28,143 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:23:28,143 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:23:28,144 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:23:28,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:23:28,144 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:23:28,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:23:28,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:23:28,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:23:28,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:23:28,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:28,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:23:28,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:23:28,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:23:28,147 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:23:28,147 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:23:28,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:23:28,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:23:28,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:23:28,149 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_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3420d94795154cd5f059d8ec6bdcee482b4f1cb5d11f69298f0ab04296514804 [2021-10-24 10:23:28,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:23:28,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:23:28,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:23:28,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:23:28,639 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:23:28,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2021-10-24 10:23:28,739 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data/ebddc0a77/4031ef237c9c4bf29fa91165b3df3753/FLAG575dfea18 [2021-10-24 10:23:29,484 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:23:29,487 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/sv-benchmarks/c/float-newlib/double_req_bl_0882.c [2021-10-24 10:23:29,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data/ebddc0a77/4031ef237c9c4bf29fa91165b3df3753/FLAG575dfea18 [2021-10-24 10:23:29,758 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/data/ebddc0a77/4031ef237c9c4bf29fa91165b3df3753 [2021-10-24 10:23:29,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:23:29,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:23:29,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:29,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:23:29,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:23:29,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:29" (1/1) ... [2021-10-24 10:23:29,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f87f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:29, skipping insertion in model container [2021-10-24 10:23:29,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:23:29" (1/1) ... [2021-10-24 10:23:29,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:23:29,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:23:30,359 WARN L228 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_625873c0-93d2-4869-b5c6-4bbe41e2c39e/sv-benchmarks/c/float-newlib/double_req_bl_0882.c[14275,14288] [2021-10-24 10:23:30,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:30,412 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:23:30,558 WARN L228 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_625873c0-93d2-4869-b5c6-4bbe41e2c39e/sv-benchmarks/c/float-newlib/double_req_bl_0882.c[14275,14288] [2021-10-24 10:23:30,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:23:30,597 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:23:30,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30 WrapperNode [2021-10-24 10:23:30,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:23:30,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:23:30,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:23:30,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:23:30,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:23:30,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:23:30,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:23:30,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:23:30,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:23:30,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:23:30,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:23:30,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:23:30,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (1/1) ... [2021-10-24 10:23:30,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:23:30,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:23:30,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:23:31,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:23:31,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-24 10:23:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-24 10:23:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:23:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:23:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-24 10:23:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 10:23:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:23:31,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:23:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 10:23:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:24:29,918 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:24:29,918 INFO L299 CfgBuilder]: Removed 92 assume(true) statements. [2021-10-24 10:24:29,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:24:29 BoogieIcfgContainer [2021-10-24 10:24:29,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:24:29,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:24:29,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:24:29,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:24:29,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:23:29" (1/3) ... [2021-10-24 10:24:29,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f275e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:24:29, skipping insertion in model container [2021-10-24 10:24:29,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:23:30" (2/3) ... [2021-10-24 10:24:29,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f275e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:24:29, skipping insertion in model container [2021-10-24 10:24:29,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:24:29" (3/3) ... [2021-10-24 10:24:29,933 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0882.c [2021-10-24 10:24:29,939 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:24:29,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:24:30,000 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:24:30,008 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:24:30,008 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:24:30,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 215 states have (on average 1.7209302325581395) internal successors, (370), 216 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:24:30,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 10:24:30,055 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:30,055 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:30,058 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:24:30,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:30,071 INFO L82 PathProgramCache]: Analyzing trace with hash 484722149, now seen corresponding path program 1 times [2021-10-24 10:24:30,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:30,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094899363] [2021-10-24 10:24:30,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:30,092 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:30,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:30,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:30,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:24:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:30,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:24:30,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:24:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:30,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:24:31,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:31,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:24:31,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094899363] [2021-10-24 10:24:31,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094899363] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:31,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:31,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:24:31,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227047451] [2021-10-24 10:24:31,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:24:31,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:24:31,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:24:31,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:24:31,213 INFO L87 Difference]: Start difference. First operand has 217 states, 215 states have (on average 1.7209302325581395) internal successors, (370), 216 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:24:31,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:24:31,263 INFO L93 Difference]: Finished difference Result 431 states and 736 transitions. [2021-10-24 10:24:31,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:24:31,265 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-24 10:24:31,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:24:31,282 INFO L225 Difference]: With dead ends: 431 [2021-10-24 10:24:31,282 INFO L226 Difference]: Without dead ends: 213 [2021-10-24 10:24:31,286 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:24:31,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-24 10:24:31,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2021-10-24 10:24:31,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.3773584905660377) internal successors, (292), 212 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:24:31,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 292 transitions. [2021-10-24 10:24:31,347 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 292 transitions. Word has length 11 [2021-10-24 10:24:31,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:24:31,348 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 292 transitions. [2021-10-24 10:24:31,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:24:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 292 transitions. [2021-10-24 10:24:31,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 10:24:31,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:31,349 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:31,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:24:31,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:24:31,551 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:24:31,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:31,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1071825986, now seen corresponding path program 1 times [2021-10-24 10:24:31,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:31,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535675697] [2021-10-24 10:24:31,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:31,554 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:31,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:31,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:31,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:24:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:32,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 10:24:32,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:24:32,623 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 29 treesize of output 27 [2021-10-24 10:24:35,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:35,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:24:38,430 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 32 treesize of output 30 [2021-10-24 10:24:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:39,509 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:24:39,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535675697] [2021-10-24 10:24:39,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535675697] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:39,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:39,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:24:39,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386393496] [2021-10-24 10:24:39,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:24:39,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:24:39,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:24:39,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2021-10-24 10:24:39,514 INFO L87 Difference]: Start difference. First operand 213 states and 292 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:24:57,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:24:57,317 INFO L93 Difference]: Finished difference Result 366 states and 483 transitions. [2021-10-24 10:24:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:24:57,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-24 10:24:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:24:57,475 INFO L225 Difference]: With dead ends: 366 [2021-10-24 10:24:57,475 INFO L226 Difference]: Without dead ends: 181 [2021-10-24 10:24:57,477 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 7536.6ms TimeCoverageRelationStatistics Valid=31, Invalid=58, Unknown=1, NotChecked=0, Total=90 [2021-10-24 10:24:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-10-24 10:24:57,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2021-10-24 10:24:57,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.280701754385965) internal successors, (219), 171 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:24:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 219 transitions. [2021-10-24 10:24:57,497 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 219 transitions. Word has length 13 [2021-10-24 10:24:57,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:24:57,498 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 219 transitions. [2021-10-24 10:24:57,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:24:57,498 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 219 transitions. [2021-10-24 10:24:57,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 10:24:57,499 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:57,500 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:57,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:24:57,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:24:57,716 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:24:57,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:57,717 INFO L82 PathProgramCache]: Analyzing trace with hash 754691751, now seen corresponding path program 1 times [2021-10-24 10:24:57,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:24:57,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701060920] [2021-10-24 10:24:57,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:57,719 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:24:57,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:24:57,720 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:24:57,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:24:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:58,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 10:24:58,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:25:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:00,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:25:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:02,957 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:25:02,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701060920] [2021-10-24 10:25:02,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701060920] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:02,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:02,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-24 10:25:02,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76771589] [2021-10-24 10:25:02,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 10:25:02,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:25:02,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 10:25:02,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:25:02,960 INFO L87 Difference]: Start difference. First operand 172 states and 219 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:08,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:08,729 INFO L93 Difference]: Finished difference Result 322 states and 405 transitions. [2021-10-24 10:25:08,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:25:08,731 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-24 10:25:08,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:08,734 INFO L225 Difference]: With dead ends: 322 [2021-10-24 10:25:08,735 INFO L226 Difference]: Without dead ends: 162 [2021-10-24 10:25:08,741 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 3368.9ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-24 10:25:08,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-24 10:25:08,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 153. [2021-10-24 10:25:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.1776315789473684) internal successors, (179), 152 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 179 transitions. [2021-10-24 10:25:08,775 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 179 transitions. Word has length 15 [2021-10-24 10:25:08,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:08,776 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 179 transitions. [2021-10-24 10:25:08,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 179 transitions. [2021-10-24 10:25:08,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 10:25:08,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:08,779 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:08,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:25:09,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:25:09,002 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:25:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:09,002 INFO L82 PathProgramCache]: Analyzing trace with hash 756538793, now seen corresponding path program 1 times [2021-10-24 10:25:09,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:25:09,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071193825] [2021-10-24 10:25:09,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:09,004 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:25:09,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:25:09,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:25:09,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:25:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:09,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 10:25:09,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:25:10,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 45 [2021-10-24 10:25:12,603 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:12,604 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 73 treesize of output 71 [2021-10-24 10:25:12,918 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 23 treesize of output 15 [2021-10-24 10:25:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:16,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:25:22,072 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:22,073 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 95 treesize of output 94 [2021-10-24 10:25:22,291 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:25:22,291 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 94 treesize of output 98 [2021-10-24 10:25:22,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:25:22,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071193825] [2021-10-24 10:25:22,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-10-24 10:25:22,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1679008234] [2021-10-24 10:25:22,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:22,317 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:25:22,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:25:22,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:25:22,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-24 10:25:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 10:25:28,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@2796e318 [2021-10-24 10:25:28,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649379502] [2021-10-24 10:25:28,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:25:28,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:25:28,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:25:28,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-24 10:25:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-24 10:25:28,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@2796e318 [2021-10-24 10:25:28,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-24 10:25:28,279 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-24 10:25:28,280 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-24 10:25:28,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:25:28,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:25:28,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:25:28,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:25:28,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:25:28,894 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:25:28,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:25:28 BoogieIcfgContainer [2021-10-24 10:25:28,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:25:28,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:25:28,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:25:28,921 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:25:28,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:24:29" (3/4) ... [2021-10-24 10:25:28,925 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:25:28,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:25:28,927 INFO L168 Benchmark]: Toolchain (without parser) took 119163.57 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.5 MB in the beginning and 24.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:28,928 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:28,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 831.22 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.3 MB in the beginning and 41.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:28,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.72 ms. Allocated memory is still 71.3 MB. Free memory was 41.2 MB in the beginning and 52.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:28,930 INFO L168 Benchmark]: Boogie Preprocessor took 188.15 ms. Allocated memory is still 71.3 MB. Free memory was 52.6 MB in the beginning and 47.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:28,931 INFO L168 Benchmark]: RCFGBuilder took 58973.47 ms. Allocated memory is still 71.3 MB. Free memory was 47.6 MB in the beginning and 46.9 MB in the end (delta: 716.4 kB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:28,941 INFO L168 Benchmark]: TraceAbstraction took 58995.85 ms. Allocated memory is still 71.3 MB. Free memory was 46.7 MB in the beginning and 25.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:28,942 INFO L168 Benchmark]: Witness Printer took 4.63 ms. Allocated memory is still 71.3 MB. Free memory was 25.0 MB in the beginning and 24.5 MB in the end (delta: 445.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:28,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 831.22 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.3 MB in the beginning and 41.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 158.72 ms. Allocated memory is still 71.3 MB. Free memory was 41.2 MB in the beginning and 52.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 188.15 ms. Allocated memory is still 71.3 MB. Free memory was 52.6 MB in the beginning and 47.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 58973.47 ms. Allocated memory is still 71.3 MB. Free memory was 47.6 MB in the beginning and 46.9 MB in the end (delta: 716.4 kB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 58995.85 ms. Allocated memory is still 71.3 MB. Free memory was 46.7 MB in the beginning and 25.0 MB in the end (delta: 21.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.63 ms. Allocated memory is still 71.3 MB. Free memory was 25.0 MB in the beginning and 24.5 MB in the end (delta: 445.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 593]: 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; [L584] double x = 1.0 / 0.0; [L585] double y = __VERIFIER_nondet_double(); [L587] COND TRUE y < 0.0 [L264] double z, ax, z_h, z_l, p_h, p_l; [L265] double y1, t1, t2, r, s, t, u, v, w; [L266] __int32_t i, j, k, yisint, n; [L267] __int32_t hx, hy, ix, iy; [L268] __uint32_t lx, ly; [L271] ieee_double_shape_type ew_u; [L272] ew_u.value = (x) [L273] EXPR ew_u.parts.msw [L273] (hx) = ew_u.parts.msw [L274] EXPR ew_u.parts.lsw [L274] (lx) = ew_u.parts.lsw [L277] ieee_double_shape_type ew_u; [L278] ew_u.value = (y) [L279] EXPR ew_u.parts.msw [L279] (hy) = ew_u.parts.msw [L280] EXPR ew_u.parts.lsw [L280] (ly) = ew_u.parts.lsw [L282] ix = hx & 0x7fffffff [L283] iy = hy & 0x7fffffff [L285] COND FALSE !((iy | ly) == 0) [L288-L289] COND TRUE ix > 0x7ff00000 || ((ix == 0x7ff00000) && (lx != 0)) || iy > 0x7ff00000 || ((iy == 0x7ff00000) && (ly != 0)) [L290] COND FALSE !(((ix - 0x3ff00000) | lx) == 0) [L293] return __builtin_nan(""); [L589] double res = __ieee754_pow(x, y); [L592] EXPR res == 0.0 && __signbit_double(res) == 0 [L592] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L593] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 217 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58895.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 28.8ms, AutomataDifference: 23845.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 636 SDtfs, 1471 SDslu, 583 SDs, 0 SdLazy, 75 SolverSat, 26 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 18711.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 10905.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 101.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 101.3ms SsaConstructionTime, 1005.9ms SatisfiabilityAnalysisTime, 12896.4ms InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 24 QuantifiedInterpolants, 479 SizeOfPredicates, 19 NumberOfNonLiveVariables, 347 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-24 10:25:29,164 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-24 10:25:29,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625873c0-93d2-4869-b5c6-4bbe41e2c39e/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...