./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0930.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0930.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 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 03:03:22,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 03:03:22,449 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 03:03:22,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 03:03:22,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 03:03:22,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 03:03:22,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 03:03:22,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 03:03:22,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 03:03:22,482 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 03:03:22,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 03:03:22,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 03:03:22,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 03:03:22,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 03:03:22,484 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 03:03:22,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 03:03:22,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 03:03:22,484 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 03:03:22,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 03:03:22,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 03:03:22,485 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 03:03:22,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 03:03:22,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 03:03:22,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:03:22,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 03:03:22,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 03:03:22,486 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 03:03:22,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 03:03:22,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 03:03:22,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 03:03:22,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 03:03:22,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 03:03:22,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 03:03:22,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 03:03:22,487 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 [2025-03-08 03:03:22,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 03:03:22,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 03:03:22,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 03:03:22,745 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 03:03:22,745 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 03:03:22,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2025-03-08 03:03:23,926 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b3a4e1d/3a1fe40e3ba3461aa63547ab0b2e55c2/FLAGcbbf514fd [2025-03-08 03:03:24,170 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 03:03:24,170 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2025-03-08 03:03:24,180 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b3a4e1d/3a1fe40e3ba3461aa63547ab0b2e55c2/FLAGcbbf514fd [2025-03-08 03:03:24,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b3a4e1d/3a1fe40e3ba3461aa63547ab0b2e55c2 [2025-03-08 03:03:24,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 03:03:24,492 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 03:03:24,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 03:03:24,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 03:03:24,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 03:03:24,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1338f8d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24, skipping insertion in model container [2025-03-08 03:03:24,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 03:03:24,669 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0930.c[3808,3821] [2025-03-08 03:03:24,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:03:24,682 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 03:03:24,716 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0930.c[3808,3821] [2025-03-08 03:03:24,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:03:24,731 INFO L204 MainTranslator]: Completed translation [2025-03-08 03:03:24,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24 WrapperNode [2025-03-08 03:03:24,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 03:03:24,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 03:03:24,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 03:03:24,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 03:03:24,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,771 INFO L138 Inliner]: procedures = 18, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 212 [2025-03-08 03:03:24,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 03:03:24,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 03:03:24,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 03:03:24,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 03:03:24,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,800 INFO L175 MemorySlicer]: Split 12 memory accesses to 5 slices as follows [2, 2, 3, 3, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 2, 1]. [2025-03-08 03:03:24,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,813 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,823 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 03:03:24,827 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 03:03:24,828 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 03:03:24,828 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 03:03:24,828 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (1/1) ... [2025-03-08 03:03:24,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:03:24,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 03:03:24,854 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) [2025-03-08 03:03:24,858 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 [2025-03-08 03:03:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 03:03:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-08 03:03:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-03-08 03:03:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 03:03:24,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 03:03:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 03:03:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 03:03:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 03:03:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 03:03:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 03:03:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 03:03:24,952 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 03:03:24,954 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 03:03:25,175 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2025-03-08 03:03:25,175 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 03:03:25,201 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 03:03:25,201 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 03:03:25,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:03:25 BoogieIcfgContainer [2025-03-08 03:03:25,202 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 03:03:25,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 03:03:25,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 03:03:25,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 03:03:25,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:03:24" (1/3) ... [2025-03-08 03:03:25,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51126014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:03:25, skipping insertion in model container [2025-03-08 03:03:25,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:24" (2/3) ... [2025-03-08 03:03:25,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51126014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:03:25, skipping insertion in model container [2025-03-08 03:03:25,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:03:25" (3/3) ... [2025-03-08 03:03:25,210 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0930.c [2025-03-08 03:03:25,220 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 03:03:25,221 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0930.c that has 1 procedures, 56 locations, 1 initial locations, 4 loop locations, and 5 error locations. [2025-03-08 03:03:25,262 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 03:03:25,273 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;@58c237df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 03:03:25,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-08 03:03:25,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 50 states have (on average 1.82) internal successors, (91), 55 states have internal predecessors, (91), 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) [2025-03-08 03:03:25,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-08 03:03:25,281 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:03:25,281 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-08 03:03:25,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2025-03-08 03:03:25,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:03:25,286 INFO L85 PathProgramCache]: Analyzing trace with hash 146931, now seen corresponding path program 1 times [2025-03-08 03:03:25,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 03:03:25,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841328886] [2025-03-08 03:03:25,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:03:25,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 03:03:25,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-08 03:03:25,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-08 03:03:25,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:03:25,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 03:03:25,358 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 03:03:25,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-08 03:03:25,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-08 03:03:25,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:03:25,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 03:03:25,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 03:03:25,382 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 03:03:25,382 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-03-08 03:03:25,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-03-08 03:03:25,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 5 remaining) [2025-03-08 03:03:25,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 5 remaining) [2025-03-08 03:03:25,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-03-08 03:03:25,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 03:03:25,387 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 03:03:25,402 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 03:03:25,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:03:25 BoogieIcfgContainer [2025-03-08 03:03:25,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 03:03:25,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 03:03:25,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 03:03:25,405 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 03:03:25,406 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:03:25" (3/4) ... [2025-03-08 03:03:25,408 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 03:03:25,408 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 03:03:25,409 INFO L158 Benchmark]: Toolchain (without parser) took 917.37ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 58.2MB in the end (delta: 52.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-08 03:03:25,409 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:03:25,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.05ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 97.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:03:25,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.41ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 94.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:03:25,410 INFO L158 Benchmark]: Boogie Preprocessor took 53.83ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 92.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:03:25,410 INFO L158 Benchmark]: IcfgBuilder took 374.60ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 71.9MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 03:03:25,410 INFO L158 Benchmark]: TraceAbstraction took 201.05ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 58.6MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:03:25,410 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 142.6MB. Free memory was 58.6MB in the beginning and 58.2MB in the end (delta: 435.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:03:25,412 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.05ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 97.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.41ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 94.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.83ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 92.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 374.60ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 71.9MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 201.05ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 58.6MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 142.6MB. Free memory was 58.6MB in the beginning and 58.2MB in the end (delta: 435.1kB). 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: 53]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 53. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L146] double x = 1.0; [L148] CALL __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - UnprovableResult [Line: 152]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 132]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 91 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-08 03:03:25,426 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0930.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 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 03:03:27,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 03:03:27,451 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 03:03:27,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 03:03:27,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 03:03:27,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 03:03:27,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 03:03:27,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 03:03:27,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 03:03:27,481 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 03:03:27,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 03:03:27,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 03:03:27,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 03:03:27,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 03:03:27,483 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 03:03:27,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 03:03:27,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 03:03:27,483 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 03:03:27,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 03:03:27,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 03:03:27,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 03:03:27,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 03:03:27,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 03:03:27,484 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 03:03:27,484 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 03:03:27,484 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 03:03:27,485 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:03:27,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 03:03:27,485 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 03:03:27,486 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 03:03:27,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 03:03:27,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 03:03:27,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 03:03:27,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 03:03:27,486 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 8d734d3869a39929ea479cab14eb5865c36aeb805da0fe481c4349ce6c2b3759 [2025-03-08 03:03:27,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 03:03:27,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 03:03:27,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 03:03:27,733 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 03:03:27,734 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 03:03:27,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2025-03-08 03:03:28,911 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e3e7ae7/d341ebb440474734a968b8c66387d933/FLAG7c11b3917 [2025-03-08 03:03:29,113 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 03:03:29,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0930.c [2025-03-08 03:03:29,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e3e7ae7/d341ebb440474734a968b8c66387d933/FLAG7c11b3917 [2025-03-08 03:03:29,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e3e7ae7/d341ebb440474734a968b8c66387d933 [2025-03-08 03:03:29,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 03:03:29,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 03:03:29,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 03:03:29,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 03:03:29,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 03:03:29,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f10641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29, skipping insertion in model container [2025-03-08 03:03:29,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 03:03:29,315 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0930.c[3808,3821] [2025-03-08 03:03:29,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:03:29,333 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 03:03:29,370 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0930.c[3808,3821] [2025-03-08 03:03:29,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:03:29,389 INFO L204 MainTranslator]: Completed translation [2025-03-08 03:03:29,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29 WrapperNode [2025-03-08 03:03:29,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 03:03:29,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 03:03:29,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 03:03:29,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 03:03:29,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,430 INFO L138 Inliner]: procedures = 21, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 161 [2025-03-08 03:03:29,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 03:03:29,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 03:03:29,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 03:03:29,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 03:03:29,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,455 INFO L175 MemorySlicer]: Split 12 memory accesses to 5 slices as follows [2, 2, 3, 3, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 2, 1, 1]. [2025-03-08 03:03:29,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,471 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 03:03:29,482 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 03:03:29,485 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 03:03:29,486 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 03:03:29,486 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (1/1) ... [2025-03-08 03:03:29,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:03:29,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 03:03:29,511 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) [2025-03-08 03:03:29,513 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 [2025-03-08 03:03:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 03:03:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-03-08 03:03:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-03-08 03:03:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-03-08 03:03:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2025-03-08 03:03:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2025-03-08 03:03:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-03-08 03:03:29,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 03:03:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-08 03:03:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-08 03:03:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-08 03:03:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-08 03:03:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-03-08 03:03:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 03:03:29,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 03:03:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-08 03:03:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-08 03:03:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-08 03:03:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-08 03:03:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-03-08 03:03:29,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 03:03:29,631 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 03:03:29,633 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 03:04:11,747 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2025-03-08 03:04:11,747 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 03:04:11,754 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 03:04:11,755 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 03:04:11,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:04:11 BoogieIcfgContainer [2025-03-08 03:04:11,755 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 03:04:11,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 03:04:11,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 03:04:11,764 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 03:04:11,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:03:29" (1/3) ... [2025-03-08 03:04:11,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6cb00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:04:11, skipping insertion in model container [2025-03-08 03:04:11,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:03:29" (2/3) ... [2025-03-08 03:04:11,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6cb00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:04:11, skipping insertion in model container [2025-03-08 03:04:11,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:04:11" (3/3) ... [2025-03-08 03:04:11,767 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0930.c [2025-03-08 03:04:11,778 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 03:04:11,779 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0930.c that has 1 procedures, 33 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-08 03:04:11,817 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 03:04:11,828 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;@5324b857, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 03:04:11,829 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 03:04:11,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 32 states have internal predecessors, (53), 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) [2025-03-08 03:04:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-08 03:04:11,835 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:04:11,835 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:04:11,835 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:04:11,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:04:11,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1499843032, now seen corresponding path program 1 times [2025-03-08 03:04:11,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:04:11,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182037481] [2025-03-08 03:04:11,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:04:11,845 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 [2025-03-08 03:04:11,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:04:11,849 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) [2025-03-08 03:04:11,849 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 [2025-03-08 03:04:11,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-08 03:04:12,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-08 03:04:12,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:04:12,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:04:12,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 03:04:12,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:04:12,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:04:12,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:04:12,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:04:12,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182037481] [2025-03-08 03:04:12,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182037481] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:04:12,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:04:12,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 03:04:12,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142613770] [2025-03-08 03:04:12,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:04:12,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 03:04:12,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:04:12,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 03:04:12,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 03:04:12,531 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.7096774193548387) internal successors, (53), 32 states have internal predecessors, (53), 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) [2025-03-08 03:04:12,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:04:12,544 INFO L93 Difference]: Finished difference Result 64 states and 104 transitions. [2025-03-08 03:04:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 03:04:12,546 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 [2025-03-08 03:04:12,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:04:12,554 INFO L225 Difference]: With dead ends: 64 [2025-03-08 03:04:12,554 INFO L226 Difference]: Without dead ends: 30 [2025-03-08 03:04:12,556 INFO L434 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 [2025-03-08 03:04:12,560 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 03:04:12,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 03:04:12,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-08 03:04:12,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-03-08 03:04:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 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) [2025-03-08 03:04:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2025-03-08 03:04:12,586 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 10 [2025-03-08 03:04:12,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:04:12,587 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2025-03-08 03:04:12,587 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) [2025-03-08 03:04:12,587 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2025-03-08 03:04:12,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-08 03:04:12,588 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:04:12,588 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:04:12,610 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 [2025-03-08 03:04:12,788 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 [2025-03-08 03:04:12,790 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:04:12,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:04:12,790 INFO L85 PathProgramCache]: Analyzing trace with hash 2124313122, now seen corresponding path program 1 times [2025-03-08 03:04:12,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:04:12,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639987505] [2025-03-08 03:04:12,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:04:12,791 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 [2025-03-08 03:04:12,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:04:12,794 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) [2025-03-08 03:04:12,796 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 [2025-03-08 03:04:12,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-08 03:04:13,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-08 03:04:13,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:04:13,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:04:13,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 03:04:13,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:04:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:04:14,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:04:14,627 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:04:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639987505] [2025-03-08 03:04:14,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639987505] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:04:14,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:04:14,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 03:04:14,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021301726] [2025-03-08 03:04:14,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:04:14,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 03:04:14,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:04:14,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 03:04:14,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 03:04:14,628 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2025-03-08 03:04:20,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-08 03:04:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:04:21,049 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2025-03-08 03:04:21,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 03:04:21,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2025-03-08 03:04:21,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:04:21,050 INFO L225 Difference]: With dead ends: 50 [2025-03-08 03:04:21,050 INFO L226 Difference]: Without dead ends: 26 [2025-03-08 03:04:21,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 03:04:21,051 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2025-03-08 03:04:21,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 76 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2025-03-08 03:04:21,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-03-08 03:04:21,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-03-08 03:04:21,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:04:21,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2025-03-08 03:04:21,053 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2025-03-08 03:04:21,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:04:21,054 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2025-03-08 03:04:21,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2025-03-08 03:04:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2025-03-08 03:04:21,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-08 03:04:21,054 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:04:21,054 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:04:21,070 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 (3)] Ended with exit code 0 [2025-03-08 03:04:21,255 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 [2025-03-08 03:04:21,255 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:04:21,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:04:21,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2092445551, now seen corresponding path program 1 times [2025-03-08 03:04:21,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:04:21,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419210493] [2025-03-08 03:04:21,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:04:21,256 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 [2025-03-08 03:04:21,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:04:21,258 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) [2025-03-08 03:04:21,259 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 [2025-03-08 03:04:21,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 03:04:21,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 03:04:21,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:04:21,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:04:21,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 03:04:21,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:04:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:04:23,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:04:23,560 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:04:23,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419210493] [2025-03-08 03:04:23,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419210493] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:04:23,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:04:23,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 03:04:23,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769488762] [2025-03-08 03:04:23,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:04:23,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 03:04:23,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:04:23,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 03:04:23,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 03:04:23,562 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2025-03-08 03:04:28,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:04:32,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:04:36,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:04:40,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:04:45,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:04:49,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:04:53,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:04:58,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:05:02,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:05:03,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:05:03,269 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2025-03-08 03:05:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 03:05:03,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2025-03-08 03:05:03,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:05:03,270 INFO L225 Difference]: With dead ends: 31 [2025-03-08 03:05:03,270 INFO L226 Difference]: Without dead ends: 28 [2025-03-08 03:05:03,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-08 03:05:03,271 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 23 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2025-03-08 03:05:03,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 72 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 9 Unknown, 0 Unchecked, 39.0s Time] [2025-03-08 03:05:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-03-08 03:05:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-03-08 03:05:03,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 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) [2025-03-08 03:05:03,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2025-03-08 03:05:03,274 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 17 [2025-03-08 03:05:03,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:05:03,274 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2025-03-08 03:05:03,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2025-03-08 03:05:03,274 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2025-03-08 03:05:03,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-08 03:05:03,274 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:05:03,274 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:05:03,282 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 [2025-03-08 03:05:03,475 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 [2025-03-08 03:05:03,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:05:03,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:05:03,476 INFO L85 PathProgramCache]: Analyzing trace with hash 2094292593, now seen corresponding path program 1 times [2025-03-08 03:05:03,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:05:03,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273477904] [2025-03-08 03:05:03,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:05:03,476 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 [2025-03-08 03:05:03,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:05:03,479 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2025-03-08 03:05:03,480 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 (5)] Waiting until timeout for monitored process [2025-03-08 03:05:03,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 03:05:03,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 03:05:03,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:05:03,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:05:03,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-08 03:05:03,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:05:09,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:05:09,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:05:09,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:05:09,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273477904] [2025-03-08 03:05:09,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273477904] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:05:09,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:05:09,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 03:05:09,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976149182] [2025-03-08 03:05:09,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:05:09,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 03:05:09,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:05:09,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 03:05:09,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-08 03:05:09,032 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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)