./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.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 --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 5463c0227f502c4f65ae7bbf2b837d9391dfb26d5bc0061bf2040d731aef09b4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:30:41,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:30:41,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 17:30:41,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:30:41,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:30:41,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:30:41,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:30:41,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:30:41,289 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:30:41,289 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:30:41,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:30:41,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:30:41,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:30:41,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:30:41,291 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:30:41,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:30:41,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:30:41,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:30:41,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 17:30:41,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:30:41,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:30:41,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:30:41,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:30:41,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:30:41,297 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:30:41,299 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:30:41,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:30:41,299 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:30:41,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:30:41,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:30:41,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:30:41,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:30:41,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:30:41,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:30:41,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:30:41,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:30:41,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 17:30:41,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 17:30:41,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:30:41,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:30:41,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:30:41,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:30:41,302 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5463c0227f502c4f65ae7bbf2b837d9391dfb26d5bc0061bf2040d731aef09b4 [2024-10-12 17:30:41,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:30:41,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:30:41,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:30:41,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:30:41,557 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:30:41,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2024-10-12 17:30:42,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:30:42,932 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:30:42,932 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2024-10-12 17:30:42,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c79ce8d/c92895a3987c4b49a94ea9b99ce28000/FLAGbed1582b1 [2024-10-12 17:30:42,949 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c79ce8d/c92895a3987c4b49a94ea9b99ce28000 [2024-10-12 17:30:42,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:30:42,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:30:42,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:30:42,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:30:42,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:30:42,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:30:42" (1/1) ... [2024-10-12 17:30:42,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a50f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:42, skipping insertion in model container [2024-10-12 17:30:42,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:30:42" (1/1) ... [2024-10-12 17:30:42,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:30:43,132 WARN L248 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/float_req_bl_1032d.c[1744,1757] [2024-10-12 17:30:43,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:30:43,150 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:30:43,167 WARN L248 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/float_req_bl_1032d.c[1744,1757] [2024-10-12 17:30:43,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:30:43,181 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:30:43,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43 WrapperNode [2024-10-12 17:30:43,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:30:43,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:30:43,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:30:43,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:30:43,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,219 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 131 [2024-10-12 17:30:43,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:30:43,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:30:43,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:30:43,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:30:43,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,253 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-10-12 17:30:43,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:30:43,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:30:43,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:30:43,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:30:43,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (1/1) ... [2024-10-12 17:30:43,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:30:43,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:30:43,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 17:30:43,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 17:30:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:30:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 17:30:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 17:30:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 17:30:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 17:30:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-12 17:30:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:30:43,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:30:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 17:30:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 17:30:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 17:30:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 17:30:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:30:43,404 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:30:43,405 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:30:43,591 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-10-12 17:30:43,592 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:30:43,608 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:30:43,609 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-12 17:30:43,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:43 BoogieIcfgContainer [2024-10-12 17:30:43,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:30:43,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:30:43,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:30:43,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:30:43,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:30:42" (1/3) ... [2024-10-12 17:30:43,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2019c1ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:30:43, skipping insertion in model container [2024-10-12 17:30:43,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:43" (2/3) ... [2024-10-12 17:30:43,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2019c1ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:30:43, skipping insertion in model container [2024-10-12 17:30:43,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:43" (3/3) ... [2024-10-12 17:30:43,619 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d.c [2024-10-12 17:30:43,630 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:30:43,631 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:30:43,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:30:43,682 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6f3b7383, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:30:43,683 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:30:43,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 40 states have internal predecessors, (62), 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) [2024-10-12 17:30:43,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-12 17:30:43,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:30:43,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:30:43,694 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:30:43,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:30:43,698 INFO L85 PathProgramCache]: Analyzing trace with hash 337965256, now seen corresponding path program 1 times [2024-10-12 17:30:43,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:30:43,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114626110] [2024-10-12 17:30:43,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:30:43,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:30:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:30:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:30:43,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:30:43,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114626110] [2024-10-12 17:30:43,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114626110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:30:43,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:30:43,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:30:43,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835880270] [2024-10-12 17:30:43,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:30:43,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:30:43,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:30:43,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:30:43,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:30:43,862 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 40 states have internal predecessors, (62), 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) [2024-10-12 17:30:43,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:30:43,890 INFO L93 Difference]: Finished difference Result 81 states and 123 transitions. [2024-10-12 17:30:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:30:43,892 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 [2024-10-12 17:30:43,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:30:43,902 INFO L225 Difference]: With dead ends: 81 [2024-10-12 17:30:43,902 INFO L226 Difference]: Without dead ends: 39 [2024-10-12 17:30:43,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:30:43,909 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:30:43,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:30:43,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-10-12 17:30:43,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-10-12 17:30:43,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 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) [2024-10-12 17:30:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2024-10-12 17:30:43,938 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 11 [2024-10-12 17:30:43,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:30:43,938 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2024-10-12 17:30:43,939 INFO L472 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) [2024-10-12 17:30:43,939 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-10-12 17:30:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 17:30:43,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:30:43,941 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:30:43,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 17:30:43,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:30:43,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:30:43,942 INFO L85 PathProgramCache]: Analyzing trace with hash -127608577, now seen corresponding path program 1 times [2024-10-12 17:30:43,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:30:43,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913923792] [2024-10-12 17:30:43,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:30:43,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:30:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:30:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:30:44,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:30:44,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913923792] [2024-10-12 17:30:44,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913923792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:30:44,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:30:44,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 17:30:44,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424218006] [2024-10-12 17:30:44,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:30:44,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 17:30:44,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:30:44,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 17:30:44,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:30:44,283 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-12 17:30:44,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:30:44,350 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2024-10-12 17:30:44,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 17:30:44,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 [2024-10-12 17:30:44,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:30:44,353 INFO L225 Difference]: With dead ends: 79 [2024-10-12 17:30:44,353 INFO L226 Difference]: Without dead ends: 53 [2024-10-12 17:30:44,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:30:44,355 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 13 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 17:30:44,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 115 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 17:30:44,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-12 17:30:44,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-10-12 17:30:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 51 states have internal predecessors, (70), 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) [2024-10-12 17:30:44,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2024-10-12 17:30:44,363 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 70 transitions. Word has length 13 [2024-10-12 17:30:44,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:30:44,363 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 70 transitions. [2024-10-12 17:30:44,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-12 17:30:44,363 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2024-10-12 17:30:44,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 17:30:44,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:30:44,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:30:44,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 17:30:44,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:30:44,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:30:44,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1647398785, now seen corresponding path program 1 times [2024-10-12 17:30:44,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:30:44,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576494551] [2024-10-12 17:30:44,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:30:44,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:30:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:30:44,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:30:44,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:30:44,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576494551] [2024-10-12 17:30:44,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576494551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:30:44,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:30:44,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 17:30:44,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144466454] [2024-10-12 17:30:44,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:30:44,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 17:30:44,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:30:44,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 17:30:44,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:30:44,484 INFO L87 Difference]: Start difference. First operand 52 states and 70 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-12 17:30:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:30:44,532 INFO L93 Difference]: Finished difference Result 68 states and 87 transitions. [2024-10-12 17:30:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 17:30:44,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 [2024-10-12 17:30:44,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:30:44,533 INFO L225 Difference]: With dead ends: 68 [2024-10-12 17:30:44,533 INFO L226 Difference]: Without dead ends: 43 [2024-10-12 17:30:44,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 17:30:44,535 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 2 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:30:44,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 124 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:30:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-12 17:30:44,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-12 17:30:44,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 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) [2024-10-12 17:30:44,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2024-10-12 17:30:44,542 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 13 [2024-10-12 17:30:44,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:30:44,542 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2024-10-12 17:30:44,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-12 17:30:44,542 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2024-10-12 17:30:44,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-12 17:30:44,543 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:30:44,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:30:44,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 17:30:44,545 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:30:44,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:30:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1304573127, now seen corresponding path program 1 times [2024-10-12 17:30:44,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:30:44,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136954099] [2024-10-12 17:30:44,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:30:44,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:30:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:30:44,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 17:30:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:30:44,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 17:30:44,610 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 17:30:44,610 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:30:44,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 17:30:44,614 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-12 17:30:44,637 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:30:44,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:30:44 BoogieIcfgContainer [2024-10-12 17:30:44,641 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:30:44,642 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:30:44,642 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:30:44,642 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:30:44,643 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:43" (3/4) ... [2024-10-12 17:30:44,645 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 17:30:44,646 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:30:44,647 INFO L158 Benchmark]: Toolchain (without parser) took 1694.40ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 135.0MB in the end (delta: -3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:30:44,647 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 79.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:30:44,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.46ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 118.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 17:30:44,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.43ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 117.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:30:44,649 INFO L158 Benchmark]: Boogie Preprocessor took 50.95ms. Allocated memory is still 165.7MB. Free memory was 117.6MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:30:44,650 INFO L158 Benchmark]: RCFGBuilder took 335.76ms. Allocated memory is still 165.7MB. Free memory was 114.4MB in the beginning and 125.8MB in the end (delta: -11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 17:30:44,650 INFO L158 Benchmark]: TraceAbstraction took 1029.81ms. Allocated memory is still 165.7MB. Free memory was 124.8MB in the beginning and 135.0MB in the end (delta: -10.3MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2024-10-12 17:30:44,650 INFO L158 Benchmark]: Witness Printer took 4.72ms. Allocated memory is still 165.7MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:30:44,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 79.8MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.46ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 118.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.43ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 117.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.95ms. Allocated memory is still 165.7MB. Free memory was 117.6MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.76ms. Allocated memory is still 165.7MB. Free memory was 114.4MB in the beginning and 125.8MB in the end (delta: -11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1029.81ms. Allocated memory is still 165.7MB. Free memory was 124.8MB in the beginning and 135.0MB in the end (delta: -10.3MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. * Witness Printer took 4.72ms. Allocated memory is still 165.7MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 80]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L75] float x = -1.0f / 0.0f; [L76] CALL, EXPR round_float(x) [L14] __uint32_t w; [L16] int exponent_less_127; [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (w) = gf_u.word [L24] EXPR w & 0x7f800000 VAL [w=-2155872256, x=141] [L24] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L26] COND FALSE !(exponent_less_127 < 23) VAL [exponent_less_127=128, w=-2155872256, x=141] [L42] COND TRUE exponent_less_127 == 128 [L44] return x + x; VAL [w=-2155872256, x=141] [L76] RET, EXPR round_float(x) [L76] float res = round_float(x); [L79] CALL, EXPR isinf_float(res) [L58] __int32_t ix; VAL [x=142] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (ix) = gf_u.word [L64] ix &= 0x7fffffff [L65] return ((ix) == 0x7f800000L); [L79] RET, EXPR isinf_float(res) [L79] COND TRUE !isinf_float(res) [L80] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 290 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 151 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 139 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2024-10-12 17:30:44,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.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 --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 5463c0227f502c4f65ae7bbf2b837d9391dfb26d5bc0061bf2040d731aef09b4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:30:46,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:30:46,501 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-12 17:30:46,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:30:46,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:30:46,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:30:46,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:30:46,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:30:46,539 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:30:46,540 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:30:46,540 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:30:46,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:30:46,541 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:30:46,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:30:46,543 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:30:46,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:30:46,544 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:30:46,544 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:30:46,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:30:46,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:30:46,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:30:46,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:30:46,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:30:46,545 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 17:30:46,546 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 17:30:46,546 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:30:46,546 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 17:30:46,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:30:46,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:30:46,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:30:46,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:30:46,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:30:46,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:30:46,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:30:46,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:30:46,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:30:46,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:30:46,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:30:46,549 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 17:30:46,549 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 17:30:46,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:30:46,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:30:46,551 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:30:46,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:30:46,551 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 17:30:46,551 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5463c0227f502c4f65ae7bbf2b837d9391dfb26d5bc0061bf2040d731aef09b4 [2024-10-12 17:30:46,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:30:46,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:30:46,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:30:46,840 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:30:46,840 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:30:46,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2024-10-12 17:30:48,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:30:48,236 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:30:48,237 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2024-10-12 17:30:48,246 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed3219151/db5e0fed24c24deea512701dc136d123/FLAGc03ff453e [2024-10-12 17:30:48,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed3219151/db5e0fed24c24deea512701dc136d123 [2024-10-12 17:30:48,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:30:48,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:30:48,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:30:48,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:30:48,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:30:48,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f55b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48, skipping insertion in model container [2024-10-12 17:30:48,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:30:48,829 WARN L248 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/float_req_bl_1032d.c[1744,1757] [2024-10-12 17:30:48,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:30:48,847 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:30:48,877 WARN L248 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/float_req_bl_1032d.c[1744,1757] [2024-10-12 17:30:48,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:30:48,891 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:30:48,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48 WrapperNode [2024-10-12 17:30:48,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:30:48,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:30:48,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:30:48,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:30:48,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,930 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2024-10-12 17:30:48,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:30:48,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:30:48,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:30:48,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:30:48,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,943 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,961 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-10-12 17:30:48,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:30:48,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:30:48,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:30:48,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:30:48,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (1/1) ... [2024-10-12 17:30:48,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:30:49,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:30:49,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 17:30:49,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-12 17:30:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:30:49,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-12 17:30:49,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-12 17:30:49,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:30:49,125 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:30:49,127 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:30:49,311 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-10-12 17:30:49,311 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:30:49,340 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:30:49,340 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-12 17:30:49,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:49 BoogieIcfgContainer [2024-10-12 17:30:49,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:30:49,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:30:49,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:30:49,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:30:49,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:30:48" (1/3) ... [2024-10-12 17:30:49,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203e536b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:30:49, skipping insertion in model container [2024-10-12 17:30:49,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:30:48" (2/3) ... [2024-10-12 17:30:49,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203e536b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:30:49, skipping insertion in model container [2024-10-12 17:30:49,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:49" (3/3) ... [2024-10-12 17:30:49,349 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d.c [2024-10-12 17:30:49,363 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:30:49,363 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:30:49,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:30:49,419 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46dbd801, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:30:49,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:30:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 20 states have internal predecessors, (32), 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) [2024-10-12 17:30:49,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-12 17:30:49,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:30:49,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:30:49,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:30:49,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:30:49,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1395358356, now seen corresponding path program 1 times [2024-10-12 17:30:49,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:30:49,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943314105] [2024-10-12 17:30:49,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:30:49,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:30:49,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:30:49,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:30:49,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-12 17:30:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:30:49,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 17:30:49,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:30:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:30:49,564 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:30:49,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:30:49,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943314105] [2024-10-12 17:30:49,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943314105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:30:49,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:30:49,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:30:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189486240] [2024-10-12 17:30:49,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:30:49,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:30:49,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:30:49,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:30:49,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:30:49,594 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 20 states have internal predecessors, (32), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-10-12 17:30:49,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:30:49,617 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2024-10-12 17:30:49,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:30:49,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2024-10-12 17:30:49,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:30:49,625 INFO L225 Difference]: With dead ends: 41 [2024-10-12 17:30:49,625 INFO L226 Difference]: Without dead ends: 19 [2024-10-12 17:30:49,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:30:49,630 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:30:49,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:30:49,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-10-12 17:30:49,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-12 17:30:49,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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) [2024-10-12 17:30:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-10-12 17:30:49,654 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2024-10-12 17:30:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:30:49,654 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-10-12 17:30:49,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2024-10-12 17:30:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-10-12 17:30:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 17:30:49,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:30:49,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:30:49,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-12 17:30:49,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:30:49,856 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:30:49,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:30:49,857 INFO L85 PathProgramCache]: Analyzing trace with hash -778294987, now seen corresponding path program 1 times [2024-10-12 17:30:49,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:30:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614710676] [2024-10-12 17:30:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:30:49,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:30:49,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:30:49,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:30:49,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-12 17:30:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:30:49,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-12 17:30:49,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:30:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:30:50,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:30:50,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:30:50,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614710676] [2024-10-12 17:30:50,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614710676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:30:50,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:30:50,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 17:30:50,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497219672] [2024-10-12 17:30:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:30:50,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 17:30:50,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:30:50,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 17:30:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 17:30:50,125 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-10-12 17:30:50,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:30:50,223 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2024-10-12 17:30:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 17:30:50,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2024-10-12 17:30:50,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:30:50,224 INFO L225 Difference]: With dead ends: 26 [2024-10-12 17:30:50,224 INFO L226 Difference]: Without dead ends: 18 [2024-10-12 17:30:50,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-12 17:30:50,225 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 17:30:50,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 77 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 17:30:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-10-12 17:30:50,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-12 17:30:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-10-12 17:30:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-10-12 17:30:50,228 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2024-10-12 17:30:50,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:30:50,229 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-10-12 17:30:50,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-10-12 17:30:50,229 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-10-12 17:30:50,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 17:30:50,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:30:50,230 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:30:50,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-12 17:30:50,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:30:50,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:30:50,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:30:50,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1290826640, now seen corresponding path program 1 times [2024-10-12 17:30:50,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:30:50,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236471192] [2024-10-12 17:30:50,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:30:50,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:30:50,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:30:50,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:30:50,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-12 17:30:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:30:50,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 17:30:50,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:30:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:30:50,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:30:50,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:30:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236471192] [2024-10-12 17:30:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236471192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:30:50,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:30:50,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 17:30:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611692133] [2024-10-12 17:30:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:30:50,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 17:30:50,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:30:50,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 17:30:50,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 17:30:50,608 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-12 17:30:50,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:30:50,668 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-10-12 17:30:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 17:30:50,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2024-10-12 17:30:50,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:30:50,668 INFO L225 Difference]: With dead ends: 18 [2024-10-12 17:30:50,668 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 17:30:50,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 17:30:50,669 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:30:50,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:30:50,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 17:30:50,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 17:30:50,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-10-12 17:30:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 17:30:50,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-10-12 17:30:50,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:30:50,671 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 17:30:50,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-10-12 17:30:50,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 17:30:50,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 17:30:50,673 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:30:50,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-12 17:30:50,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:30:50,877 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-12 17:30:50,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 17:30:50,921 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:30:50,933 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-12 17:30:50,934 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-12 17:30:50,934 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-12 17:30:50,936 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-12 17:30:50,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:30:50 BoogieIcfgContainer [2024-10-12 17:30:50,937 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:30:50,938 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:30:50,938 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:30:50,938 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:30:50,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:49" (3/4) ... [2024-10-12 17:30:50,940 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 17:30:50,945 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-10-12 17:30:50,945 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-12 17:30:50,945 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 17:30:50,946 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 17:30:51,021 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 17:30:51,021 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 17:30:51,021 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:30:51,022 INFO L158 Benchmark]: Toolchain (without parser) took 2377.01ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 32.6MB in the end (delta: 21.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2024-10-12 17:30:51,022 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 54.5MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:30:51,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.38ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 62.5MB in the end (delta: -8.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-10-12 17:30:51,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.16ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 60.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:30:51,023 INFO L158 Benchmark]: Boogie Preprocessor took 52.36ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 58.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 17:30:51,023 INFO L158 Benchmark]: RCFGBuilder took 356.03ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 42.0MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 17:30:51,023 INFO L158 Benchmark]: TraceAbstraction took 1594.79ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 37.3MB in the end (delta: 4.2MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2024-10-12 17:30:51,024 INFO L158 Benchmark]: Witness Printer took 83.71ms. Allocated memory is still 83.9MB. Free memory was 37.3MB in the beginning and 32.6MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 17:30:51,025 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 54.5MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.38ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 62.5MB in the end (delta: -8.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.16ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 60.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.36ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 58.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 356.03ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 42.0MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1594.79ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 37.3MB in the end (delta: 4.2MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Witness Printer took 83.71ms. Allocated memory is still 83.9MB. Free memory was 37.3MB in the beginning and 32.6MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 80]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 38 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 4 QuantifiedInterpolants, 242 SizeOfPredicates, 8 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-12 17:30:51,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE