./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:21:44,089 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:21:44,156 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 18:21:44,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:21:44,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:21:44,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:21:44,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:21:44,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:21:44,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:21:44,206 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:21:44,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:21:44,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:21:44,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:21:44,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:21:44,207 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:21:44,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:21:44,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:21:44,216 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:21:44,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 18:21:44,216 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:21:44,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:21:44,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:21:44,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:21:44,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:21:44,218 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:21:44,218 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:21:44,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:21:44,218 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:21:44,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:21:44,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:21:44,219 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:21:44,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:21:44,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:21:44,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:21:44,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:21:44,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:21:44,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 18:21:44,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 18:21:44,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:21:44,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:21:44,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:21:44,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:21:44,223 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 [2024-11-11 18:21:44,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:21:44,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:21:44,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:21:44,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:21:44,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:21:44,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2024-11-11 18:21:46,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:21:46,298 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:21:46,299 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2024-11-11 18:21:46,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ac72983/8a50347f9de146599df5358fc2c1ee02/FLAGfe7396988 [2024-11-11 18:21:46,325 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ac72983/8a50347f9de146599df5358fc2c1ee02 [2024-11-11 18:21:46,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:21:46,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:21:46,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:21:46,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:21:46,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:21:46,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd51b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46, skipping insertion in model container [2024-11-11 18:21:46,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:21:46,577 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2024-11-11 18:21:46,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:21:46,590 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:21:46,628 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2024-11-11 18:21:46,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:21:46,647 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:21:46,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46 WrapperNode [2024-11-11 18:21:46,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:21:46,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:21:46,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:21:46,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:21:46,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,718 INFO L138 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 259 [2024-11-11 18:21:46,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:21:46,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:21:46,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:21:46,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:21:46,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,738 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,794 INFO L175 MemorySlicer]: Split 17 memory accesses to 7 slices as follows [2, 2, 5, 2, 2, 2, 2]. 29 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 2, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 0, 1, 1, 1, 1]. [2024-11-11 18:21:46,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:21:46,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:21:46,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:21:46,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:21:46,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (1/1) ... [2024-11-11 18:21:46,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:21:46,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:21:46,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 18:21:46,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 18:21:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:21:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 18:21:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 18:21:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 18:21:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 18:21:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 18:21:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 18:21:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 18:21:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 18:21:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 18:21:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 18:21:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-11 18:21:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-11 18:21:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-11 18:21:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-11 18:21:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-11 18:21:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-11 18:21:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-11 18:21:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-11 18:21:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-11 18:21:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-11 18:21:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-11 18:21:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-11 18:21:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-11 18:21:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-11 18:21:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-11 18:21:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-11 18:21:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-11 18:21:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-11 18:21:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-11 18:21:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:21:47,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:21:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 18:21:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 18:21:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-11 18:21:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-11 18:21:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-11 18:21:47,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-11 18:21:47,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-11 18:21:47,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-11 18:21:47,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-11 18:21:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-11 18:21:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-11 18:21:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-11 18:21:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-11 18:21:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-11 18:21:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 18:21:47,146 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:21:47,149 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:21:47,583 INFO L? ?]: Removed 64 outVars from TransFormulas that were not future-live. [2024-11-11 18:21:47,584 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:21:47,604 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:21:47,605 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-11 18:21:47,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:47 BoogieIcfgContainer [2024-11-11 18:21:47,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:21:47,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:21:47,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:21:47,611 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:21:47,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:21:46" (1/3) ... [2024-11-11 18:21:47,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664cb5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:21:47, skipping insertion in model container [2024-11-11 18:21:47,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:46" (2/3) ... [2024-11-11 18:21:47,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664cb5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:21:47, skipping insertion in model container [2024-11-11 18:21:47,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:47" (3/3) ... [2024-11-11 18:21:47,613 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2024-11-11 18:21:47,627 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:21:47,628 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:21:47,688 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:21:47,695 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;@2d2eba85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:21:47,695 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:21:47,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 80 states have (on average 1.625) internal successors, (130), 81 states have internal predecessors, (130), 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) [2024-11-11 18:21:47,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-11 18:21:47,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:21:47,708 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:21:47,708 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:21:47,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:21:47,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1984620552, now seen corresponding path program 1 times [2024-11-11 18:21:47,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:21:47,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551602330] [2024-11-11 18:21:47,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:21:47,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:21:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:21:47,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:21:47,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 18:21:47,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551602330] [2024-11-11 18:21:47,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551602330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:21:47,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:21:47,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:21:47,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008740140] [2024-11-11 18:21:47,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:21:47,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:21:47,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 18:21:47,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:21:47,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:21:47,951 INFO L87 Difference]: Start difference. First operand has 82 states, 80 states have (on average 1.625) internal successors, (130), 81 states have internal predecessors, (130), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:21:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:21:47,981 INFO L93 Difference]: Finished difference Result 161 states and 256 transitions. [2024-11-11 18:21:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:21:47,984 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-11 18:21:47,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:21:47,993 INFO L225 Difference]: With dead ends: 161 [2024-11-11 18:21:47,993 INFO L226 Difference]: Without dead ends: 78 [2024-11-11 18:21:47,997 INFO L434 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 [2024-11-11 18:21:48,001 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:21:48,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:21:48,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-11 18:21:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-11 18:21:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 77 states have internal predecessors, (108), 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) [2024-11-11 18:21:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 108 transitions. [2024-11-11 18:21:48,044 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 108 transitions. Word has length 13 [2024-11-11 18:21:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:21:48,045 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 108 transitions. [2024-11-11 18:21:48,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:21:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 108 transitions. [2024-11-11 18:21:48,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-11 18:21:48,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:21:48,047 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:21:48,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 18:21:48,048 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:21:48,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:21:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash -744275163, now seen corresponding path program 1 times [2024-11-11 18:21:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 18:21:48,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454213866] [2024-11-11 18:21:48,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:21:48,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 18:21:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:21:48,166 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-11 18:21:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-11 18:21:48,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-11 18:21:48,261 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-11 18:21:48,263 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:21:48,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 18:21:48,270 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-11 18:21:48,300 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:21:48,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:21:48 BoogieIcfgContainer [2024-11-11 18:21:48,303 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:21:48,305 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:21:48,305 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:21:48,305 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:21:48,306 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:47" (3/4) ... [2024-11-11 18:21:48,308 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-11 18:21:48,310 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:21:48,310 INFO L158 Benchmark]: Toolchain (without parser) took 1980.67ms. Allocated memory is still 176.2MB. Free memory was 108.7MB in the beginning and 86.8MB in the end (delta: 21.9MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-11-11 18:21:48,312 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory was 134.5MB in the beginning and 134.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:21:48,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.53ms. Allocated memory is still 176.2MB. Free memory was 108.5MB in the beginning and 94.0MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-11 18:21:48,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.23ms. Allocated memory is still 176.2MB. Free memory was 94.0MB in the beginning and 91.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-11 18:21:48,313 INFO L158 Benchmark]: Boogie Preprocessor took 176.52ms. Allocated memory is still 176.2MB. Free memory was 91.4MB in the beginning and 147.7MB in the end (delta: -56.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-11-11 18:21:48,315 INFO L158 Benchmark]: RCFGBuilder took 708.50ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 121.1MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-11 18:21:48,315 INFO L158 Benchmark]: TraceAbstraction took 695.83ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 86.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-11 18:21:48,316 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 176.2MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:21:48,319 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory was 134.5MB in the beginning and 134.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.53ms. Allocated memory is still 176.2MB. Free memory was 108.5MB in the beginning and 94.0MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.23ms. Allocated memory is still 176.2MB. Free memory was 94.0MB in the beginning and 91.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 176.52ms. Allocated memory is still 176.2MB. Free memory was 91.4MB in the beginning and 147.7MB in the end (delta: -56.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * RCFGBuilder took 708.50ms. Allocated memory is still 176.2MB. Free memory was 147.7MB in the beginning and 121.1MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 695.83ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 86.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 176.2MB. Free memory is still 86.8MB. 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: 137]: 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 someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of someUnaryFLOAToperation at line 128, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [Zero_fmod={4:0}, one_fmod=1] [L128] float x = -0.0f; [L129] float y = __VERIFIER_nondet_float(); [L131] COND TRUE (y < 0.0f || y > 0.0f) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, one_fmod=1, x=4294967311, y=4294967310] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 VAL [Zero_fmod={4:0}, hx=0, hy=-2147483648, one_fmod=1, sx=0, x=4294967311, y=4294967310] [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, hx=0, hy=0, one_fmod=1, sx=0, x=4294967311, y=4294967310] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, one_fmod=1, sx=0, x=4294967311, y=4294967310] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [Zero_fmod={4:0}, one_fmod=1, res=4294967309] [L136] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [Zero_fmod={4:0}, one_fmod=1] [L136] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L137] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=4294967309] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 113 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 113 mSDtfsCounter, 0 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=82occurred 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, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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 [2024-11-11 18:21:48,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 18:21:50,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 18:21:50,715 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-11 18:21:50,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 18:21:50,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 18:21:50,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 18:21:50,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 18:21:50,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 18:21:50,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 18:21:50,766 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 18:21:50,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 18:21:50,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 18:21:50,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 18:21:50,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 18:21:50,771 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 18:21:50,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 18:21:50,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 18:21:50,772 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 18:21:50,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 18:21:50,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 18:21:50,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 18:21:50,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 18:21:50,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 18:21:50,777 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-11 18:21:50,777 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-11 18:21:50,778 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 18:21:50,778 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-11 18:21:50,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 18:21:50,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 18:21:50,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 18:21:50,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 18:21:50,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 18:21:50,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 18:21:50,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 18:21:50,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:21:50,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 18:21:50,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 18:21:50,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 18:21:50,783 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-11 18:21:50,783 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-11 18:21:50,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 18:21:50,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 18:21:50,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 18:21:50,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 18:21:50,784 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a27d491922fed811389be7683fdd773e450b51244c11daaa0217b4a945b5d2e5 [2024-11-11 18:21:51,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 18:21:51,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 18:21:51,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 18:21:51,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 18:21:51,205 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 18:21:51,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2024-11-11 18:21:52,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 18:21:53,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 18:21:53,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c [2024-11-11 18:21:53,118 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22b42e0a4/6e40a27412424d5b830df72e3772a9af/FLAGe7bb9f5df [2024-11-11 18:21:53,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22b42e0a4/6e40a27412424d5b830df72e3772a9af [2024-11-11 18:21:53,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 18:21:53,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 18:21:53,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 18:21:53,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 18:21:53,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 18:21:53,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f88d140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53, skipping insertion in model container [2024-11-11 18:21:53,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 18:21:53,435 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2024-11-11 18:21:53,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:21:53,460 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 18:21:53,515 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1130b.c[2909,2922] [2024-11-11 18:21:53,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 18:21:53,542 INFO L204 MainTranslator]: Completed translation [2024-11-11 18:21:53,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53 WrapperNode [2024-11-11 18:21:53,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 18:21:53,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 18:21:53,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 18:21:53,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 18:21:53,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,669 INFO L138 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 193 [2024-11-11 18:21:53,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 18:21:53,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 18:21:53,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 18:21:53,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 18:21:53,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,697 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,729 INFO L175 MemorySlicer]: Split 17 memory accesses to 7 slices as follows [2, 2, 2, 2, 5, 2, 2]. 29 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 0, 2, 0, 0]. The 5 writes are split as follows [0, 1, 1, 1, 0, 1, 1]. [2024-11-11 18:21:53,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 18:21:53,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 18:21:53,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 18:21:53,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 18:21:53,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (1/1) ... [2024-11-11 18:21:53,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 18:21:53,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 18:21:53,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 18:21:53,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 18:21:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 18:21:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-11 18:21:53,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-11 18:21:53,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-11 18:21:53,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-11 18:21:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-11 18:21:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-11 18:21:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-11 18:21:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-11 18:21:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-11 18:21:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-11 18:21:53,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-11 18:21:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-11 18:21:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-11 18:21:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-11 18:21:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 18:21:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-11 18:21:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-11 18:21:53,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-11 18:21:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-11 18:21:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-11 18:21:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-11 18:21:53,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-11 18:21:53,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-11 18:21:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-11 18:21:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-11 18:21:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-11 18:21:53,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-11 18:21:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-11 18:21:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-11 18:21:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 18:21:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 18:21:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-11 18:21:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-11 18:21:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-11 18:21:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-11 18:21:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-11 18:21:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-11 18:21:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-11 18:21:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-11 18:21:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-11 18:21:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-11 18:21:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-11 18:21:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-11 18:21:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-11 18:21:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-11 18:21:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 18:21:54,062 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 18:21:54,065 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 18:21:57,775 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-11 18:21:57,776 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 18:21:57,793 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 18:21:57,794 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-11 18:21:57,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:57 BoogieIcfgContainer [2024-11-11 18:21:57,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 18:21:57,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 18:21:57,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 18:21:57,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 18:21:57,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:21:53" (1/3) ... [2024-11-11 18:21:57,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787d849e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:21:57, skipping insertion in model container [2024-11-11 18:21:57,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:21:53" (2/3) ... [2024-11-11 18:21:57,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@787d849e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:21:57, skipping insertion in model container [2024-11-11 18:21:57,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:57" (3/3) ... [2024-11-11 18:21:57,803 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b.c [2024-11-11 18:21:57,820 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 18:21:57,820 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 18:21:57,898 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 18:21:57,904 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;@42692f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 18:21:57,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 18:21:57,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 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) [2024-11-11 18:21:57,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-11 18:21:57,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:21:57,915 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:21:57,915 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:21:57,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:21:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash 461941989, now seen corresponding path program 1 times [2024-11-11 18:21:57,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:21:57,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008941195] [2024-11-11 18:21:57,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:21:57,931 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 [2024-11-11 18:21:57,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:21:57,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:21:57,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-11 18:21:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:21:58,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 18:21:58,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:21:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:21:58,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:21:58,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:21:58,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008941195] [2024-11-11 18:21:58,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008941195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:21:58,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:21:58,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 18:21:58,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56997190] [2024-11-11 18:21:58,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:21:58,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 18:21:58,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:21:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 18:21:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:21:58,259 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7391304347826086) internal successors, (80), 47 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:21:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:21:58,275 INFO L93 Difference]: Finished difference Result 93 states and 156 transitions. [2024-11-11 18:21:58,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 18:21:58,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-11 18:21:58,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:21:58,285 INFO L225 Difference]: With dead ends: 93 [2024-11-11 18:21:58,286 INFO L226 Difference]: Without dead ends: 44 [2024-11-11 18:21:58,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-11 18:21:58,293 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 18:21:58,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 18:21:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-11 18:21:58,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-11 18:21:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 43 states have internal predecessors, (60), 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) [2024-11-11 18:21:58,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2024-11-11 18:21:58,325 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 11 [2024-11-11 18:21:58,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:21:58,326 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2024-11-11 18:21:58,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:21:58,326 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2024-11-11 18:21:58,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-11 18:21:58,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:21:58,327 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:21:58,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-11 18:21:58,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:21:58,529 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:21:58,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:21:58,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1049045826, now seen corresponding path program 1 times [2024-11-11 18:21:58,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:21:58,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475891169] [2024-11-11 18:21:58,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:21:58,531 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 [2024-11-11 18:21:58,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:21:58,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:21:58,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-11 18:21:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:21:58,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-11 18:21:58,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:21:59,092 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 [2024-11-11 18:21:59,113 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 30 treesize of output 14 [2024-11-11 18:21:59,354 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 [2024-11-11 18:21:59,373 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 51 treesize of output 23 [2024-11-11 18:21:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:21:59,846 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:21:59,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:21:59,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475891169] [2024-11-11 18:21:59,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475891169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:21:59,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:21:59,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 18:21:59,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601516773] [2024-11-11 18:21:59,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:21:59,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 18:21:59,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:21:59,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 18:21:59,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 18:21:59,852 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:00,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:00,464 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2024-11-11 18:22:00,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 18:22:00,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-11 18:22:00,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:00,466 INFO L225 Difference]: With dead ends: 53 [2024-11-11 18:22:00,466 INFO L226 Difference]: Without dead ends: 19 [2024-11-11 18:22:00,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-11 18:22:00,468 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:00,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 68 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 18:22:00,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-11 18:22:00,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-11 18:22:00,473 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) [2024-11-11 18:22:00,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-11-11 18:22:00,475 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 13 [2024-11-11 18:22:00,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:00,475 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-11-11 18:22:00,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 18:22:00,475 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-11-11 18:22:00,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-11 18:22:00,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:00,476 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:00,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-11 18:22:00,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:00,677 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:00,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:00,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1911951893, now seen corresponding path program 1 times [2024-11-11 18:22:00,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:00,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770545922] [2024-11-11 18:22:00,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:00,679 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 [2024-11-11 18:22:00,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:00,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:22:00,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-11 18:22:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:00,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 18:22:00,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:01,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:01,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:01,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:01,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770545922] [2024-11-11 18:22:01,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770545922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:01,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:01,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 18:22:01,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693807321] [2024-11-11 18:22:01,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:01,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 18:22:01,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:01,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 18:22:01,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 18:22:01,136 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-11-11 18:22:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:01,330 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2024-11-11 18:22:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 18:22:01,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2024-11-11 18:22:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:01,331 INFO L225 Difference]: With dead ends: 22 [2024-11-11 18:22:01,331 INFO L226 Difference]: Without dead ends: 19 [2024-11-11 18:22:01,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 18:22:01,332 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:01,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 18:22:01,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-11 18:22:01,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-11 18:22:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 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) [2024-11-11 18:22:01,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2024-11-11 18:22:01,338 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2024-11-11 18:22:01,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:01,338 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2024-11-11 18:22:01,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-11-11 18:22:01,338 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2024-11-11 18:22:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-11 18:22:01,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 18:22:01,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 18:22:01,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-11 18:22:01,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:01,540 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 18:22:01,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 18:22:01,541 INFO L85 PathProgramCache]: Analyzing trace with hash -645654976, now seen corresponding path program 1 times [2024-11-11 18:22:01,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-11 18:22:01,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530513992] [2024-11-11 18:22:01,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 18:22:01,542 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 [2024-11-11 18:22:01,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-11 18:22:01,546 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-11 18:22:01,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-11 18:22:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 18:22:01,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-11 18:22:01,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 18:22:02,053 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 [2024-11-11 18:22:02,065 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 30 treesize of output 14 [2024-11-11 18:22:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 18:22:02,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 18:22:02,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-11 18:22:02,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530513992] [2024-11-11 18:22:02,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530513992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 18:22:02,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 18:22:02,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 18:22:02,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972387133] [2024-11-11 18:22:02,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 18:22:02,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 18:22:02,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-11 18:22:02,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 18:22:02,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 18:22:02,418 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2024-11-11 18:22:02,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 18:22:02,936 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2024-11-11 18:22:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 18:22:02,937 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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 18 [2024-11-11 18:22:02,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 18:22:02,938 INFO L225 Difference]: With dead ends: 19 [2024-11-11 18:22:02,938 INFO L226 Difference]: Without dead ends: 0 [2024-11-11 18:22:02,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-11 18:22:02,939 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 18:22:02,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 62 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 18:22:02,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-11 18:22:02,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-11 18:22:02,940 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) [2024-11-11 18:22:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-11 18:22:02,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-11 18:22:02,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 18:22:02,941 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-11 18:22:02,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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) [2024-11-11 18:22:02,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-11 18:22:02,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-11 18:22:02,945 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 18:22:02,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-11 18:22:03,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-11 18:22:03,149 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-11 18:22:03,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-11 18:22:03,352 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 18:22:03,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:22:03 BoogieIcfgContainer [2024-11-11 18:22:03,369 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 18:22:03,370 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 18:22:03,370 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 18:22:03,370 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 18:22:03,371 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:21:57" (3/4) ... [2024-11-11 18:22:03,374 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-11 18:22:03,383 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-11 18:22:03,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-11 18:22:03,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-11 18:22:03,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 18:22:03,481 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-11 18:22:03,482 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-11 18:22:03,482 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 18:22:03,485 INFO L158 Benchmark]: Toolchain (without parser) took 10343.01ms. Allocated memory was 62.9MB in the beginning and 104.9MB in the end (delta: 41.9MB). Free memory was 41.3MB in the beginning and 76.0MB in the end (delta: -34.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-11-11 18:22:03,486 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 62.9MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 18:22:03,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.07ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 26.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-11 18:22:03,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.68ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 26.0MB in the beginning and 64.7MB in the end (delta: -38.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-11 18:22:03,486 INFO L158 Benchmark]: Boogie Preprocessor took 103.17ms. Allocated memory is still 86.0MB. Free memory was 64.7MB in the beginning and 61.1MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:03,487 INFO L158 Benchmark]: RCFGBuilder took 4017.22ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 38.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-11 18:22:03,487 INFO L158 Benchmark]: TraceAbstraction took 5572.63ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 37.5MB in the beginning and 80.2MB in the end (delta: -42.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-11 18:22:03,487 INFO L158 Benchmark]: Witness Printer took 114.87ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 76.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-11 18:22:03,490 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 62.9MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.07ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 26.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.68ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 26.0MB in the beginning and 64.7MB in the end (delta: -38.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.17ms. Allocated memory is still 86.0MB. Free memory was 64.7MB in the beginning and 61.1MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4017.22ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 38.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5572.63ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 37.5MB in the beginning and 80.2MB in the end (delta: -42.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 114.87ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 76.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 137]: 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 251 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 152 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 99 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 1 QuantifiedInterpolants, 290 SizeOfPredicates, 8 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 44 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: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-11 18:22:03,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE