./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3b28f1771fed46d057da916762844447a30bce2821ca5ce4d8266d25ce5978b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:49:15,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:49:15,517 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 00:49:15,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:49:15,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:49:15,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:49:15,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:49:15,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:49:15,546 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:49:15,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:49:15,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:49:15,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:49:15,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:49:15,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:49:15,551 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:49:15,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:49:15,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:49:15,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:49:15,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 00:49:15,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:49:15,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:49:15,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:49:15,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:49:15,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:49:15,556 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:49:15,556 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:49:15,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:49:15,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:49:15,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:49:15,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:49:15,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:49:15,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:49:15,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:49:15,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:49:15,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:49:15,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:49:15,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 00:49:15,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 00:49:15,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:49:15,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:49:15,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:49:15,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:49:15,560 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b28f1771fed46d057da916762844447a30bce2821ca5ce4d8266d25ce5978b7 [2024-10-11 00:49:15,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:49:15,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:49:15,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:49:15,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:49:15,820 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:49:15,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2024-10-11 00:49:17,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:49:17,462 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:49:17,464 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2024-10-11 00:49:17,478 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/efdfa3685/21b34151b35a40a48c0e17426a5ea1a4/FLAG55e6e909e [2024-10-11 00:49:17,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/efdfa3685/21b34151b35a40a48c0e17426a5ea1a4 [2024-10-11 00:49:17,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:49:17,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:49:17,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:49:17,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:49:17,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:49:17,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744c3ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17, skipping insertion in model container [2024-10-11 00:49:17,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:49:17,692 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c[1778,1791] [2024-10-11 00:49:17,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:49:17,705 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:49:17,731 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c[1778,1791] [2024-10-11 00:49:17,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:49:17,748 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:49:17,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17 WrapperNode [2024-10-11 00:49:17,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:49:17,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:49:17,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:49:17,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:49:17,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,790 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 122 [2024-10-11 00:49:17,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:49:17,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:49:17,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:49:17,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:49:17,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,822 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-10-11 00:49:17,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:49:17,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:49:17,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:49:17,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:49:17,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (1/1) ... [2024-10-11 00:49:17,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:49:17,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:49:17,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:49:17,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:49:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:49:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 00:49:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 00:49:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 00:49:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 00:49:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:49:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-11 00:49:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-11 00:49:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-11 00:49:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-11 00:49:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 00:49:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 00:49:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 00:49:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 00:49:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-11 00:49:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-11 00:49:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-11 00:49:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-11 00:49:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:49:17,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:49:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 00:49:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 00:49:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 00:49:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 00:49:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:49:18,064 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:49:18,069 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:49:18,320 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-10-11 00:49:18,320 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:49:18,350 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:49:18,350 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-11 00:49:18,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:18 BoogieIcfgContainer [2024-10-11 00:49:18,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:49:18,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:49:18,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:49:18,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:49:18,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:49:17" (1/3) ... [2024-10-11 00:49:18,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a622be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:49:18, skipping insertion in model container [2024-10-11 00:49:18,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:17" (2/3) ... [2024-10-11 00:49:18,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a622be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:49:18, skipping insertion in model container [2024-10-11 00:49:18,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:18" (3/3) ... [2024-10-11 00:49:18,359 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b.c [2024-10-11 00:49:18,372 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:49:18,374 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:49:18,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:49:18,453 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;@5a12c9c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:49:18,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:49:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 37 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:18,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 00:49:18,463 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:18,463 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:18,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:18,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:18,470 INFO L85 PathProgramCache]: Analyzing trace with hash -846171055, now seen corresponding path program 1 times [2024-10-11 00:49:18,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:49:18,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242834951] [2024-10-11 00:49:18,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:18,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:49:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:49:18,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:49:18,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 00:49:18,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242834951] [2024-10-11 00:49:18,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242834951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:49:18,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:49:18,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:49:18,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000873340] [2024-10-11 00:49:18,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:49:18,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:49:18,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 00:49:18,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:49:18,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:49:18,648 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 37 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:18,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:49:18,673 INFO L93 Difference]: Finished difference Result 75 states and 117 transitions. [2024-10-11 00:49:18,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:49:18,675 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-11 00:49:18,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:49:18,680 INFO L225 Difference]: With dead ends: 75 [2024-10-11 00:49:18,680 INFO L226 Difference]: Without dead ends: 36 [2024-10-11 00:49:18,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:49:18,685 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:49:18,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:49:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-11 00:49:18,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-11 00:49:18,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 35 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:18,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2024-10-11 00:49:18,710 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 10 [2024-10-11 00:49:18,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:49:18,710 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2024-10-11 00:49:18,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:18,710 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2024-10-11 00:49:18,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 00:49:18,711 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:18,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:18,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 00:49:18,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:18,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:18,712 INFO L85 PathProgramCache]: Analyzing trace with hash -908037613, now seen corresponding path program 1 times [2024-10-11 00:49:18,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:49:18,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667979986] [2024-10-11 00:49:18,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:18,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:49:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:49:18,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 00:49:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:49:18,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 00:49:18,835 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 00:49:18,837 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:49:18,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 00:49:18,841 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 00:49:18,856 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:49:18,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:49:18 BoogieIcfgContainer [2024-10-11 00:49:18,858 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:49:18,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:49:18,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:49:18,859 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:49:18,859 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:18" (3/4) ... [2024-10-11 00:49:18,861 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 00:49:18,864 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:49:18,865 INFO L158 Benchmark]: Toolchain (without parser) took 1369.27ms. Allocated memory is still 211.8MB. Free memory was 144.0MB in the beginning and 141.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:49:18,865 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:49:18,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.99ms. Allocated memory is still 211.8MB. Free memory was 143.7MB in the beginning and 130.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 00:49:18,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.61ms. Allocated memory is still 211.8MB. Free memory was 130.8MB in the beginning and 128.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:49:18,866 INFO L158 Benchmark]: Boogie Preprocessor took 43.86ms. Allocated memory is still 211.8MB. Free memory was 128.9MB in the beginning and 126.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:49:18,867 INFO L158 Benchmark]: RCFGBuilder took 512.51ms. Allocated memory is still 211.8MB. Free memory was 126.3MB in the beginning and 172.5MB in the end (delta: -46.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 00:49:18,868 INFO L158 Benchmark]: TraceAbstraction took 506.21ms. Allocated memory is still 211.8MB. Free memory was 171.2MB in the beginning and 141.0MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-11 00:49:18,869 INFO L158 Benchmark]: Witness Printer took 4.80ms. Allocated memory is still 211.8MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:49:18,870 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.99ms. Allocated memory is still 211.8MB. Free memory was 143.7MB in the beginning and 130.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.61ms. Allocated memory is still 211.8MB. Free memory was 130.8MB in the beginning and 128.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.86ms. Allocated memory is still 211.8MB. Free memory was 128.9MB in the beginning and 126.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.51ms. Allocated memory is still 211.8MB. Free memory was 126.3MB in the beginning and 172.5MB in the end (delta: -46.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 506.21ms. Allocated memory is still 211.8MB. Free memory was 171.2MB in the beginning and 141.0MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.80ms. Allocated memory is still 211.8MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 82]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L77] float x = -1.0f / 0.0f; [L78] CALL, EXPR floor_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000, i0=-8388608, ix=2139095040, j0=128, x=1000000000000000000000000000014] [L25] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000, i0=-8388608, ix=2139095040, x=1000000000000000000000000000014] [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [huge_floor=1000000000000000000000000000000, i0=-8388608, x=1000000000000000000000000000014] [L78] RET, EXPR floor_float(x) [L78] float res = floor_float(x); [L81] CALL, EXPR isinf_float(res) [L60] __int32_t ix; VAL [huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000013] [L62] ieee_float_shape_type gf_u; [L63] gf_u.value = (x) [L64] EXPR gf_u.word [L64] (ix) = gf_u.word [L66] ix &= 0x7fffffff [L67] return ((ix) == 0x7f800000L); [L81] RET, EXPR isinf_float(res) [L81] COND TRUE !isinf_float(res) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 49 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 00:49:18,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3b28f1771fed46d057da916762844447a30bce2821ca5ce4d8266d25ce5978b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:49:20,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:49:20,954 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 00:49:20,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:49:20,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:49:20,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:49:20,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:49:20,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:49:20,994 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:49:20,994 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:49:20,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:49:20,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:49:20,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:49:20,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:49:20,995 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:49:20,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:49:20,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:49:20,998 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:49:20,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:49:20,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:49:20,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:49:21,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:49:21,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:49:21,002 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 00:49:21,003 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 00:49:21,003 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:49:21,003 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 00:49:21,003 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:49:21,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:49:21,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:49:21,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:49:21,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:49:21,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:49:21,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:49:21,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:49:21,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:49:21,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:49:21,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:49:21,005 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 00:49:21,005 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 00:49:21,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:49:21,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:49:21,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:49:21,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:49:21,006 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 00:49:21,006 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b28f1771fed46d057da916762844447a30bce2821ca5ce4d8266d25ce5978b7 [2024-10-11 00:49:21,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:49:21,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:49:21,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:49:21,363 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:49:21,364 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:49:21,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2024-10-11 00:49:22,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:49:23,127 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:49:23,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2024-10-11 00:49:23,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5d8192ca5/7124b162d7864c56845fdc17a1fcc1e4/FLAG0b7844f46 [2024-10-11 00:49:23,159 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5d8192ca5/7124b162d7864c56845fdc17a1fcc1e4 [2024-10-11 00:49:23,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:49:23,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:49:23,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:49:23,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:49:23,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:49:23,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375cd393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23, skipping insertion in model container [2024-10-11 00:49:23,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:49:23,414 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c[1778,1791] [2024-10-11 00:49:23,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:49:23,428 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:49:23,455 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c[1778,1791] [2024-10-11 00:49:23,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:49:23,471 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:49:23,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23 WrapperNode [2024-10-11 00:49:23,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:49:23,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:49:23,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:49:23,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:49:23,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,503 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2024-10-11 00:49:23,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:49:23,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:49:23,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:49:23,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:49:23,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,536 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-10-11 00:49:23,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:49:23,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:49:23,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:49:23,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:49:23,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (1/1) ... [2024-10-11 00:49:23,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:49:23,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:49:23,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:49:23,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:49:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:49:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 00:49:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 00:49:23,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 00:49:23,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-11 00:49:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:49:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-11 00:49:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-11 00:49:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-11 00:49:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-11 00:49:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 00:49:23,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 00:49:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 00:49:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-11 00:49:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:49:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:49:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-11 00:49:23,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-11 00:49:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-11 00:49:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-11 00:49:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 00:49:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 00:49:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 00:49:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-11 00:49:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:49:23,759 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:49:23,761 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:49:24,200 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-11 00:49:24,201 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:49:24,245 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:49:24,245 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-11 00:49:24,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:24 BoogieIcfgContainer [2024-10-11 00:49:24,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:49:24,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:49:24,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:49:24,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:49:24,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:49:23" (1/3) ... [2024-10-11 00:49:24,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcdb0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:49:24, skipping insertion in model container [2024-10-11 00:49:24,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:49:23" (2/3) ... [2024-10-11 00:49:24,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcdb0a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:49:24, skipping insertion in model container [2024-10-11 00:49:24,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:24" (3/3) ... [2024-10-11 00:49:24,255 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b.c [2024-10-11 00:49:24,269 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:49:24,270 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:49:24,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:49:24,330 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;@1a5685cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:49:24,331 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:49:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 25 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) [2024-10-11 00:49:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 00:49:24,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:24,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:24,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:24,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:24,346 INFO L85 PathProgramCache]: Analyzing trace with hash 845941010, now seen corresponding path program 1 times [2024-10-11 00:49:24,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:49:24,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888524987] [2024-10-11 00:49:24,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:24,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:49:24,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:49:24,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 00:49:24,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 00:49:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:49:24,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 00:49:24,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:49:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:49:24,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:49:24,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:49:24,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888524987] [2024-10-11 00:49:24,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888524987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:49:24,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:49:24,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:49:24,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54137207] [2024-10-11 00:49:24,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:49:24,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:49:24,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:49:24,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:49:24,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:49:24,510 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 25 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:24,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:49:24,529 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2024-10-11 00:49:24,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:49:24,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-11 00:49:24,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:49:24,543 INFO L225 Difference]: With dead ends: 51 [2024-10-11 00:49:24,543 INFO L226 Difference]: Without dead ends: 24 [2024-10-11 00:49:24,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:49:24,548 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:49:24,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:49:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-10-11 00:49:24,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-10-11 00:49:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2024-10-11 00:49:24,572 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 32 transitions. Word has length 10 [2024-10-11 00:49:24,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:49:24,572 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 32 transitions. [2024-10-11 00:49:24,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:24,572 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-10-11 00:49:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 00:49:24,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:24,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:24,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 00:49:24,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:49:24,778 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:24,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:24,779 INFO L85 PathProgramCache]: Analyzing trace with hash 718747328, now seen corresponding path program 1 times [2024-10-11 00:49:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:49:24,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550696568] [2024-10-11 00:49:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:24,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:49:24,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:49:24,783 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 00:49:24,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-11 00:49:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:49:24,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 00:49:24,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:49:25,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-11 00:49:25,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-10-11 00:49:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:49:25,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:49:25,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:49:25,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550696568] [2024-10-11 00:49:25,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550696568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:49:25,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:49:25,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 00:49:25,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756607168] [2024-10-11 00:49:25,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:49:25,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 00:49:25,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:49:25,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 00:49:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 00:49:25,196 INFO L87 Difference]: Start difference. First operand 24 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:25,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:49:25,665 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2024-10-11 00:49:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 00:49:25,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-11 00:49:25,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:49:25,667 INFO L225 Difference]: With dead ends: 36 [2024-10-11 00:49:25,667 INFO L226 Difference]: Without dead ends: 22 [2024-10-11 00:49:25,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 00:49:25,668 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 00:49:25,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 26 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 00:49:25,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-10-11 00:49:25,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2024-10-11 00:49:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-10-11 00:49:25,675 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2024-10-11 00:49:25,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:49:25,676 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-10-11 00:49:25,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:25,676 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-10-11 00:49:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 00:49:25,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:25,681 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:25,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:49:25,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:49:25,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:25,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:25,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1056260034, now seen corresponding path program 1 times [2024-10-11 00:49:25,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:49:25,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432092175] [2024-10-11 00:49:25,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:25,888 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:49:25,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:49:25,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 00:49:25,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-11 00:49:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:49:26,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 00:49:26,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:49:26,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-11 00:49:26,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2024-10-11 00:49:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:49:26,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:49:26,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:49:26,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432092175] [2024-10-11 00:49:26,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432092175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:49:26,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:49:26,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 00:49:26,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063817820] [2024-10-11 00:49:26,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:49:26,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 00:49:26,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:49:26,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 00:49:26,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 00:49:26,314 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:26,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:49:26,490 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2024-10-11 00:49:26,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 00:49:26,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-11 00:49:26,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:49:26,491 INFO L225 Difference]: With dead ends: 27 [2024-10-11 00:49:26,491 INFO L226 Difference]: Without dead ends: 19 [2024-10-11 00:49:26,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 00:49:26,492 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 00:49:26,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 67 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 00:49:26,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-10-11 00:49:26,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-11 00:49:26,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:26,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-10-11 00:49:26,495 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2024-10-11 00:49:26,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:49:26,495 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-10-11 00:49:26,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:26,496 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-10-11 00:49:26,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 00:49:26,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:49:26,496 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:49:26,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 00:49:26,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:49:26,701 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:49:26,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:49:26,702 INFO L85 PathProgramCache]: Analyzing trace with hash -276566365, now seen corresponding path program 1 times [2024-10-11 00:49:26,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:49:26,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107465921] [2024-10-11 00:49:26,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:49:26,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:49:26,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:49:26,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 00:49:26,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:49:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:49:26,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 00:49:26,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:49:26,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-11 00:49:26,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-10-11 00:49:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:49:26,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:49:26,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:49:26,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107465921] [2024-10-11 00:49:26,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107465921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:49:26,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:49:26,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 00:49:26,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752107745] [2024-10-11 00:49:26,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:49:26,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 00:49:26,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:49:26,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 00:49:26,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 00:49:26,903 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:49:26,997 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2024-10-11 00:49:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 00:49:26,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-11 00:49:26,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:49:26,997 INFO L225 Difference]: With dead ends: 19 [2024-10-11 00:49:26,997 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 00:49:26,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 00:49:26,999 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:49:26,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:49:26,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 00:49:27,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 00:49:27,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 00:49:27,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-10-11 00:49:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:49:27,000 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 00:49:27,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:49:27,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 00:49:27,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 00:49:27,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:49:27,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 00:49:27,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 00:49:27,207 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 00:49:27,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 00:49:27,237 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:49:27,246 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:49:27,247 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:49:27,247 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-11 00:49:27,248 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-11 00:49:27,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:49:27 BoogieIcfgContainer [2024-10-11 00:49:27,249 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:49:27,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:49:27,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:49:27,250 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:49:27,250 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:49:24" (3/4) ... [2024-10-11 00:49:27,252 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 00:49:27,257 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-10-11 00:49:27,258 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-11 00:49:27,258 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 00:49:27,258 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 00:49:27,412 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 00:49:27,413 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 00:49:27,413 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:49:27,414 INFO L158 Benchmark]: Toolchain (without parser) took 4251.14ms. Allocated memory was 77.6MB in the beginning and 125.8MB in the end (delta: 48.2MB). Free memory was 43.4MB in the beginning and 99.7MB in the end (delta: -56.3MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2024-10-11 00:49:27,416 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 77.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:49:27,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.60ms. Allocated memory is still 77.6MB. Free memory was 43.2MB in the beginning and 53.3MB in the end (delta: -10.2MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-10-11 00:49:27,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.77ms. Allocated memory is still 77.6MB. Free memory was 53.3MB in the beginning and 51.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:49:27,416 INFO L158 Benchmark]: Boogie Preprocessor took 63.74ms. Allocated memory is still 77.6MB. Free memory was 51.6MB in the beginning and 49.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:49:27,417 INFO L158 Benchmark]: RCFGBuilder took 675.90ms. Allocated memory was 77.6MB in the beginning and 125.8MB in the end (delta: 48.2MB). Free memory was 48.7MB in the beginning and 103.7MB in the end (delta: -55.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 00:49:27,417 INFO L158 Benchmark]: TraceAbstraction took 3000.40ms. Allocated memory is still 125.8MB. Free memory was 103.2MB in the beginning and 57.0MB in the end (delta: 46.1MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-10-11 00:49:27,417 INFO L158 Benchmark]: Witness Printer took 163.32ms. Allocated memory is still 125.8MB. Free memory was 57.0MB in the beginning and 99.7MB in the end (delta: -42.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:49:27,418 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 77.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.60ms. Allocated memory is still 77.6MB. Free memory was 43.2MB in the beginning and 53.3MB in the end (delta: -10.2MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.77ms. Allocated memory is still 77.6MB. Free memory was 53.3MB in the beginning and 51.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.74ms. Allocated memory is still 77.6MB. Free memory was 51.6MB in the beginning and 49.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.90ms. Allocated memory was 77.6MB in the beginning and 125.8MB in the end (delta: 48.2MB). Free memory was 48.7MB in the beginning and 103.7MB in the end (delta: -55.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3000.40ms. Allocated memory is still 125.8MB. Free memory was 103.2MB in the beginning and 57.0MB in the end (delta: 46.1MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * Witness Printer took 163.32ms. Allocated memory is still 125.8MB. Free memory was 57.0MB in the beginning and 99.7MB in the end (delta: -42.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 58 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 9 QuantifiedInterpolants, 335 SizeOfPredicates, 13 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-11 00:49:27,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE