./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:36:18,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:36:18,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:36:18,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:36:18,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:36:18,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:36:18,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:36:18,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:36:18,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:36:18,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:36:18,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:36:18,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:36:18,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:36:18,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:36:18,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:36:18,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:36:18,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:36:18,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:36:18,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:36:18,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:36:18,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:36:18,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:36:18,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:36:18,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:36:18,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:36:18,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:36:18,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:36:18,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:36:18,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:36:18,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:36:18,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:36:18,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:36:18,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:36:18,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:36:18,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:36:18,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:36:18,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:36:18,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:36:18,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:36:18,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:36:18,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:36:18,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:36:18,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:36:18,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:36:18,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:36:18,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:36:18,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:36:18,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:36:18,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:36:18,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:36:18,302 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:36:18,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:36:18,303 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:36:18,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:36:18,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:36:18,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:36:18,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:36:18,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:36:18,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:36:18,305 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:36:18,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:36:18,305 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:36:18,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:36:18,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:36:18,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:36:18,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:36:18,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:18,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:36:18,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:36:18,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:36:18,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:36:18,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:36:18,307 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:36:18,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:36:18,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:36:18,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:36:18,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f [2021-12-15 10:36:18,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:36:18,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:36:18,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:36:18,593 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:36:18,594 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:36:18,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2021-12-15 10:36:18,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7109c448/3718d7a46c12474e9a4768b3affb5458/FLAG4cae0a15e [2021-12-15 10:36:19,119 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:36:19,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2021-12-15 10:36:19,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7109c448/3718d7a46c12474e9a4768b3affb5458/FLAG4cae0a15e [2021-12-15 10:36:19,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7109c448/3718d7a46c12474e9a4768b3affb5458 [2021-12-15 10:36:19,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:36:19,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:36:19,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:19,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:36:19,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:36:19,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4297e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19, skipping insertion in model container [2021-12-15 10:36:19,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:36:19,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:36:19,696 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c[3091,3104] [2021-12-15 10:36:19,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:19,705 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:36:19,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c[3091,3104] [2021-12-15 10:36:19,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:19,748 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:36:19,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19 WrapperNode [2021-12-15 10:36:19,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:19,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:19,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:36:19,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:36:19,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,812 INFO L137 Inliner]: procedures = 16, calls = 70, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 199 [2021-12-15 10:36:19,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:19,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:36:19,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:36:19,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:36:19,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:36:19,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:36:19,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:36:19,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:36:19,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (1/1) ... [2021-12-15 10:36:19,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:19,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:36:19,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:36:19,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:36:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-12-15 10:36:19,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-12-15 10:36:19,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 10:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 10:36:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:36:19,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:36:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:36:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:36:20,050 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:36:20,052 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:36:20,367 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:36:20,372 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:36:20,372 INFO L301 CfgBuilder]: Removed 20 assume(true) statements. [2021-12-15 10:36:20,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:20 BoogieIcfgContainer [2021-12-15 10:36:20,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:36:20,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:36:20,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:36:20,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:36:20,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:36:19" (1/3) ... [2021-12-15 10:36:20,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792c897e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:20, skipping insertion in model container [2021-12-15 10:36:20,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:19" (2/3) ... [2021-12-15 10:36:20,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792c897e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:20, skipping insertion in model container [2021-12-15 10:36:20,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:20" (3/3) ... [2021-12-15 10:36:20,385 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2021-12-15 10:36:20,390 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:36:20,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:36:20,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:36:20,471 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:36:20,472 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:36:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-15 10:36:20,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-15 10:36:20,505 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:20,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:20,507 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:20,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:20,512 INFO L85 PathProgramCache]: Analyzing trace with hash -542918343, now seen corresponding path program 1 times [2021-12-15 10:36:20,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:36:20,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424946821] [2021-12-15 10:36:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:20,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:36:20,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:36:20,575 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-12-15 10:36:20,581 INFO L158 Benchmark]: Toolchain (without parser) took 1084.96ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 54.1MB in the beginning and 74.5MB in the end (delta: -20.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:20,582 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 40.4MB in the beginning and 40.4MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:20,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.69ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 53.9MB in the beginning and 79.7MB in the end (delta: -25.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:36:20,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.27ms. Allocated memory is still 104.9MB. Free memory was 79.7MB in the beginning and 77.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:36:20,584 INFO L158 Benchmark]: Boogie Preprocessor took 62.65ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 75.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:36:20,585 INFO L158 Benchmark]: RCFGBuilder took 496.76ms. Allocated memory is still 104.9MB. Free memory was 75.9MB in the beginning and 59.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 10:36:20,589 INFO L158 Benchmark]: TraceAbstraction took 203.69ms. Allocated memory is still 104.9MB. Free memory was 59.1MB in the beginning and 74.5MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:20,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 40.4MB in the beginning and 40.4MB in the end (delta: 39.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.69ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 53.9MB in the beginning and 79.7MB in the end (delta: -25.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.27ms. Allocated memory is still 104.9MB. Free memory was 79.7MB in the beginning and 77.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.65ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 75.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.76ms. Allocated memory is still 104.9MB. Free memory was 75.9MB in the beginning and 59.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 203.69ms. Allocated memory is still 104.9MB. Free memory was 59.1MB in the beginning and 74.5MB in the end (delta: -15.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:36:20,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:36:22,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:36:22,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:36:22,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:36:22,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:36:22,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:36:22,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:36:22,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:36:22,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:36:22,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:36:22,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:36:22,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:36:22,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:36:22,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:36:22,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:36:22,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:36:22,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:36:22,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:36:22,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:36:22,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:36:22,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:36:22,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:36:22,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:36:22,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:36:22,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:36:22,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:36:22,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:36:22,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:36:22,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:36:22,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:36:22,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:36:22,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:36:22,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:36:22,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:36:22,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:36:22,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:36:22,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:36:22,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:36:22,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:36:22,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:36:22,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:36:22,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:36:22,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:36:22,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:36:22,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:36:22,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:36:22,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:36:22,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:36:22,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:36:22,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:36:22,846 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:36:22,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:36:22,847 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:36:22,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:36:22,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:36:22,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:36:22,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:36:22,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:36:22,848 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:36:22,849 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:36:22,849 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:36:22,849 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:36:22,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:36:22,849 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:36:22,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:36:22,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:36:22,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:36:22,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:36:22,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:22,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:36:22,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:36:22,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:36:22,851 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:36:22,852 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:36:22,852 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:36:22,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:36:22,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:36:22,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:36:22,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:36:22,853 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f [2021-12-15 10:36:23,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:36:23,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:36:23,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:36:23,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:36:23,215 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:36:23,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2021-12-15 10:36:23,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43cb8e79f/e9217154866647628f953f267a42e831/FLAGc99fe989e [2021-12-15 10:36:23,770 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:36:23,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2021-12-15 10:36:23,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43cb8e79f/e9217154866647628f953f267a42e831/FLAGc99fe989e [2021-12-15 10:36:24,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43cb8e79f/e9217154866647628f953f267a42e831 [2021-12-15 10:36:24,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:36:24,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:36:24,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:24,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:36:24,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:36:24,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f62ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24, skipping insertion in model container [2021-12-15 10:36:24,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:36:24,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:36:24,503 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c[3091,3104] [2021-12-15 10:36:24,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:24,539 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:36:24,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c[3091,3104] [2021-12-15 10:36:24,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:36:24,583 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:36:24,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24 WrapperNode [2021-12-15 10:36:24,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:36:24,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:24,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:36:24,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:36:24,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,637 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 198 [2021-12-15 10:36:24,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:36:24,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:36:24,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:36:24,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:36:24,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:36:24,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:36:24,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:36:24,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:36:24,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (1/1) ... [2021-12-15 10:36:24,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:36:24,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:36:24,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 10:36:24,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 10:36:24,763 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-12-15 10:36:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-12-15 10:36:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:36:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-15 10:36:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-15 10:36:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:36:24,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:36:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:36:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:36:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:36:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:36:24,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:36:24,842 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:36:24,844 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:36:25,595 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:36:25,601 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:36:25,601 INFO L301 CfgBuilder]: Removed 20 assume(true) statements. [2021-12-15 10:36:25,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:25 BoogieIcfgContainer [2021-12-15 10:36:25,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:36:25,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:36:25,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:36:25,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:36:25,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:36:24" (1/3) ... [2021-12-15 10:36:25,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a81443d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:25, skipping insertion in model container [2021-12-15 10:36:25,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:24" (2/3) ... [2021-12-15 10:36:25,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a81443d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:25, skipping insertion in model container [2021-12-15 10:36:25,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:25" (3/3) ... [2021-12-15 10:36:25,611 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2021-12-15 10:36:25,619 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:36:25,619 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:36:25,663 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:36:25,669 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:36:25,670 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:36:25,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-15 10:36:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-15 10:36:25,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:36:25,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:36:25,690 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:36:25,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:36:25,695 INFO L85 PathProgramCache]: Analyzing trace with hash -542918343, now seen corresponding path program 1 times [2021-12-15 10:36:25,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:36:25,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019663317] [2021-12-15 10:36:25,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:36:25,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:36:25,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:36:25,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:36:25,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:36:25,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 10:36:25,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:36:25,969 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-12-15 10:36:25,973 INFO L158 Benchmark]: Toolchain (without parser) took 1671.96ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 42.8MB in the beginning and 46.3MB in the end (delta: -3.5MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-12-15 10:36:25,974 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:36:25,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.59ms. Allocated memory is still 62.9MB. Free memory was 42.6MB in the beginning and 43.8MB in the end (delta: -1.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:36:25,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.64ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 41.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:36:25,975 INFO L158 Benchmark]: Boogie Preprocessor took 54.64ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 39.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:36:25,976 INFO L158 Benchmark]: RCFGBuilder took 905.00ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 39.6MB in the beginning and 55.6MB in the end (delta: -16.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-12-15 10:36:25,976 INFO L158 Benchmark]: TraceAbstraction took 366.70ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 46.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:36:25,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.59ms. Allocated memory is still 62.9MB. Free memory was 42.6MB in the beginning and 43.8MB in the end (delta: -1.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.64ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 41.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.64ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 39.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 905.00ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 39.6MB in the beginning and 55.6MB in the end (delta: -16.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 366.70ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 46.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:36:26,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable