./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211a.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 11de8b1d34bf28c678335a47cf13777a2fdebca168e06294b055c2a549d4333e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:34:33,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:34:33,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 19:34:33,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:34:33,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:34:33,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:34:33,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:34:33,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:34:33,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:34:33,599 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:34:33,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:34:33,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:34:33,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:34:33,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:34:33,603 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:34:33,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:34:33,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:34:33,604 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:34:33,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 19:34:33,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:34:33,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:34:33,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:34:33,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:34:33,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:34:33,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:34:33,609 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:34:33,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:34:33,610 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:34:33,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:34:33,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:34:33,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:34:33,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:34:33,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:34:33,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:34:33,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:34:33,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:34:33,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 19:34:33,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 19:34:33,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:34:33,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:34:33,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:34:33,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:34:33,615 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11de8b1d34bf28c678335a47cf13777a2fdebca168e06294b055c2a549d4333e [2024-11-19 19:34:33,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:34:33,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:34:33,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:34:33,894 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:34:33,894 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:34:33,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c [2024-11-19 19:34:35,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:34:35,561 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:34:35,562 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c [2024-11-19 19:34:35,577 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39bdc469f/407fe3ad72fe41d6b718273635cf0c63/FLAG5f6c7adc1 [2024-11-19 19:34:35,593 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39bdc469f/407fe3ad72fe41d6b718273635cf0c63 [2024-11-19 19:34:35,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:34:35,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:34:35,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:34:35,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:34:35,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:34:35,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dfaeffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35, skipping insertion in model container [2024-11-19 19:34:35,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:34:35,828 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_1211a.c[2576,2589] [2024-11-19 19:34:35,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:34:35,844 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:34:35,869 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_1211a.c[2576,2589] [2024-11-19 19:34:35,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:34:35,891 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:34:35,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35 WrapperNode [2024-11-19 19:34:35,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:34:35,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:34:35,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:34:35,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:34:35,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,940 INFO L138 Inliner]: procedures = 19, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 218 [2024-11-19 19:34:35,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:34:35,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:34:35,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:34:35,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:34:35,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,974 INFO L175 MemorySlicer]: Split 27 memory accesses to 11 slices as follows [2, 2, 2, 2, 2, 7, 2, 2, 2, 2, 2]. 26 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]. The 13 writes are split as follows [0, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1]. [2024-11-19 19:34:35,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:35,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:36,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:36,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:36,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:34:36,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:34:36,014 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:34:36,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:34:36,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (1/1) ... [2024-11-19 19:34:36,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:34:36,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:34:36,050 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) [2024-11-19 19:34:36,055 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 [2024-11-19 19:34:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:34:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 19:34:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 19:34:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 19:34:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 19:34:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 19:34:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 19:34:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 19:34:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 19:34:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 19:34:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-19 19:34:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-19 19:34:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-19 19:34:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-19 19:34:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-19 19:34:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 19:34:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 19:34:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 19:34:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 19:34:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 19:34:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 19:34:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 19:34:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 19:34:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 19:34:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 19:34:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 19:34:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 19:34:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 19:34:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 19:34:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 19:34:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 19:34:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 19:34:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-19 19:34:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-19 19:34:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-19 19:34:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-19 19:34:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-19 19:34:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:34:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:34:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 19:34:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 19:34:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 19:34:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 19:34:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 19:34:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-19 19:34:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-19 19:34:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-19 19:34:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-19 19:34:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-19 19:34:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-19 19:34:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 19:34:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 19:34:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 19:34:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 19:34:36,297 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:34:36,299 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:34:36,622 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-19 19:34:36,622 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:34:36,641 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:34:36,641 INFO L316 CfgBuilder]: Removed 18 assume(true) statements. [2024-11-19 19:34:36,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:36 BoogieIcfgContainer [2024-11-19 19:34:36,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:34:36,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:34:36,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:34:36,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:34:36,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:35" (1/3) ... [2024-11-19 19:34:36,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12651468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:36, skipping insertion in model container [2024-11-19 19:34:36,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:35" (2/3) ... [2024-11-19 19:34:36,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12651468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:36, skipping insertion in model container [2024-11-19 19:34:36,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:36" (3/3) ... [2024-11-19 19:34:36,649 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a.c [2024-11-19 19:34:36,664 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:34:36,665 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:34:36,733 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:34:36,744 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;@217be2fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:34:36,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:34:36,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.6) internal successors, (80), 51 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) [2024-11-19 19:34:36,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 19:34:36,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:36,758 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:36,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:36,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:36,762 INFO L85 PathProgramCache]: Analyzing trace with hash -887454953, now seen corresponding path program 1 times [2024-11-19 19:34:36,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:34:36,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073493724] [2024-11-19 19:34:36,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:36,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:34:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:34:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:34:36,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 19:34:36,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073493724] [2024-11-19 19:34:36,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073493724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:34:36,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:34:36,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:34:36,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669962618] [2024-11-19 19:34:36,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:34:36,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:34:36,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 19:34:37,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:34:37,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:34:37,013 INFO L87 Difference]: Start difference. First operand has 52 states, 50 states have (on average 1.6) internal successors, (80), 51 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-19 19:34:37,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:34:37,031 INFO L93 Difference]: Finished difference Result 102 states and 158 transitions. [2024-11-19 19:34:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:34:37,033 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2024-11-19 19:34:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:34:37,040 INFO L225 Difference]: With dead ends: 102 [2024-11-19 19:34:37,040 INFO L226 Difference]: Without dead ends: 49 [2024-11-19 19:34:37,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:34:37,045 INFO L432 NwaCegarLoop]: 61 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, 61 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 [2024-11-19 19:34:37,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:34:37,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-19 19:34:37,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-19 19:34:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 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) [2024-11-19 19:34:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2024-11-19 19:34:37,078 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 15 [2024-11-19 19:34:37,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:34:37,078 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2024-11-19 19:34:37,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-19 19:34:37,079 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2024-11-19 19:34:37,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 19:34:37,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:37,080 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:37,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 19:34:37,080 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:37,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:37,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1126244552, now seen corresponding path program 1 times [2024-11-19 19:34:37,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:34:37,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891060588] [2024-11-19 19:34:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:37,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:34:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:34:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:34:37,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 19:34:37,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891060588] [2024-11-19 19:34:37,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891060588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:34:37,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:34:37,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 19:34:37,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839898670] [2024-11-19 19:34:37,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:34:37,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 19:34:37,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 19:34:37,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 19:34:37,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 19:34:37,342 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2024-11-19 19:34:37,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:34:37,359 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2024-11-19 19:34:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 19:34:37,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 [2024-11-19 19:34:37,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:34:37,361 INFO L225 Difference]: With dead ends: 52 [2024-11-19 19:34:37,361 INFO L226 Difference]: Without dead ends: 49 [2024-11-19 19:34:37,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 19:34:37,362 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 19:34:37,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:34:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-19 19:34:37,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-19 19:34:37,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1875) internal successors, (57), 48 states have internal predecessors, (57), 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) [2024-11-19 19:34:37,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2024-11-19 19:34:37,369 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 18 [2024-11-19 19:34:37,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:34:37,369 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2024-11-19 19:34:37,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2024-11-19 19:34:37,370 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2024-11-19 19:34:37,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-19 19:34:37,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:37,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:37,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 19:34:37,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:37,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:37,374 INFO L85 PathProgramCache]: Analyzing trace with hash -11659518, now seen corresponding path program 1 times [2024-11-19 19:34:37,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:34:37,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938125023] [2024-11-19 19:34:37,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:37,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:34:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:34:37,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 19:34:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:34:37,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 19:34:37,553 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 19:34:37,555 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:34:37,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 19:34:37,562 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-19 19:34:37,590 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:34:37,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:37 BoogieIcfgContainer [2024-11-19 19:34:37,596 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:34:37,597 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:34:37,597 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:34:37,597 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:34:37,598 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:36" (3/4) ... [2024-11-19 19:34:37,601 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 19:34:37,602 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:34:37,602 INFO L158 Benchmark]: Toolchain (without parser) took 2004.42ms. Allocated memory is still 180.4MB. Free memory was 126.2MB in the beginning and 129.7MB in the end (delta: -3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:34:37,602 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:34:37,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.06ms. Allocated memory is still 180.4MB. Free memory was 126.2MB in the beginning and 112.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 19:34:37,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.80ms. Allocated memory is still 180.4MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:34:37,603 INFO L158 Benchmark]: Boogie Preprocessor took 71.44ms. Allocated memory is still 180.4MB. Free memory was 110.1MB in the beginning and 106.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 19:34:37,604 INFO L158 Benchmark]: RCFGBuilder took 627.78ms. Allocated memory is still 180.4MB. Free memory was 106.6MB in the beginning and 82.1MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-19 19:34:37,604 INFO L158 Benchmark]: TraceAbstraction took 952.55ms. Allocated memory is still 180.4MB. Free memory was 82.1MB in the beginning and 129.7MB in the end (delta: -47.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:34:37,604 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 180.4MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:34:37,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 180.4MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.06ms. Allocated memory is still 180.4MB. Free memory was 126.2MB in the beginning and 112.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.80ms. Allocated memory is still 180.4MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.44ms. Allocated memory is still 180.4MB. Free memory was 110.1MB in the beginning and 106.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 627.78ms. Allocated memory is still 180.4MB. Free memory was 106.6MB in the beginning and 82.1MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 952.55ms. Allocated memory is still 180.4MB. Free memory was 82.1MB in the beginning and 129.7MB in the end (delta: -47.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 180.4MB. Free memory is still 129.7MB. 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: 112]: 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 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106. Possible FailurePath: [L14] static const float one_modf = 1.0; VAL [one_modf=1] [L106] float x = 1.0f / 0.0f; [L107] float iptr = __VERIFIER_nondet_float(); [L107] float iptr = __VERIFIER_nondet_float(); [L108] CALL, EXPR modf_float(x, &iptr) [L17] __int32_t i0, j0; [L18] __uint32_t i; VAL [iptr={6:0}, one_modf=1, x=6442450966] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [i0=-2147483648, iptr={6:0}, j0=-127, one_modf=1, x=6442450966] [L25] COND TRUE j0 < 23 VAL [one_modf=1] [L26] COND TRUE j0 < 0 VAL [one_modf=1] [L28] ieee_float_shape_type sf_u; [L29] sf_u.word = (i0 & 0x80000000) [L30] EXPR sf_u.value [L30] (*iptr) = sf_u.value [L32] return x; VAL [\result=6442450966, i0=-2147483648, iptr={6:0}, one_modf=1] [L108] RET, EXPR modf_float(x, &iptr) [L108] float res = modf_float(x, &iptr); [L111] EXPR \read(iptr) [L111] CALL, EXPR isinf_float(iptr) [L89] __int32_t ix; VAL [one_modf=1, x=6442450967] [L91] ieee_float_shape_type gf_u; [L92] gf_u.value = (x) [L93] EXPR gf_u.word [L93] (ix) = gf_u.word [L95] ix &= 0x7fffffff [L96] return ((ix) == 0x7f800000L); VAL [\result=1, one_modf=1, x=6442450967] [L111] RET, EXPR isinf_float(iptr) [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [one_modf=1, res=6442450966] [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L111] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_modf=1, res=6442450966] [L111] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_modf=1] [L111] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [one_modf=1, res=6442450966] [L111] COND TRUE isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L112] reach_error() VAL [one_modf=1, res=6442450966] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, 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, 171 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 119 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2024-11-19 19:34:37,629 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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211a.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 11de8b1d34bf28c678335a47cf13777a2fdebca168e06294b055c2a549d4333e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:34:39,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:34:39,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-19 19:34:39,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:34:39,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:34:39,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:34:39,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:34:39,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:34:39,993 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:34:39,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:34:39,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:34:39,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:34:39,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:34:39,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:34:39,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:34:39,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:34:39,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:34:39,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:34:39,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:34:39,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:34:39,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:34:40,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:34:40,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:34:40,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 19:34:40,004 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 19:34:40,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:34:40,005 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 19:34:40,005 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:34:40,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:34:40,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:34:40,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:34:40,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:34:40,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:34:40,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:34:40,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:34:40,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:34:40,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:34:40,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:34:40,008 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 19:34:40,008 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 19:34:40,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:34:40,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:34:40,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:34:40,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:34:40,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11de8b1d34bf28c678335a47cf13777a2fdebca168e06294b055c2a549d4333e [2024-11-19 19:34:40,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:34:40,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:34:40,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:34:40,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:34:40,397 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:34:40,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c [2024-11-19 19:34:41,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:34:42,164 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:34:42,165 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1211a.c [2024-11-19 19:34:42,178 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/922337bfb/59ef3f857e7f45098620b30c9b77556d/FLAG75aa6ba7c [2024-11-19 19:34:42,197 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/922337bfb/59ef3f857e7f45098620b30c9b77556d [2024-11-19 19:34:42,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:34:42,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:34:42,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:34:42,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:34:42,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:34:42,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef963ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42, skipping insertion in model container [2024-11-19 19:34:42,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:34:42,472 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_1211a.c[2576,2589] [2024-11-19 19:34:42,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:34:42,501 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:34:42,541 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_1211a.c[2576,2589] [2024-11-19 19:34:42,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:34:42,565 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:34:42,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42 WrapperNode [2024-11-19 19:34:42,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:34:42,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:34:42,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:34:42,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:34:42,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,624 INFO L138 Inliner]: procedures = 22, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 194 [2024-11-19 19:34:42,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:34:42,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:34:42,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:34:42,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:34:42,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,645 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,668 INFO L175 MemorySlicer]: Split 27 memory accesses to 11 slices as follows [2, 2, 2, 2, 7, 2, 2, 2, 2, 2, 2]. 26 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0]. The 13 writes are split as follows [0, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1]. [2024-11-19 19:34:42,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:34:42,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:34:42,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:34:42,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:34:42,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (1/1) ... [2024-11-19 19:34:42,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:34:42,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:34:42,748 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) [2024-11-19 19:34:42,751 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 [2024-11-19 19:34:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:34:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-19 19:34:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-19 19:34:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-19 19:34:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-19 19:34:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-19 19:34:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-19 19:34:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-19 19:34:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-19 19:34:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-19 19:34:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-19 19:34:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:34:42,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:34:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-19 19:34:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-19 19:34:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-19 19:34:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-19 19:34:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-19 19:34:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-19 19:34:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-19 19:34:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-19 19:34:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-19 19:34:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-19 19:34:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-19 19:34:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-19 19:34:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-19 19:34:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 19:34:42,964 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:34:42,970 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:34:43,368 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-19 19:34:43,368 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:34:43,388 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:34:43,388 INFO L316 CfgBuilder]: Removed 18 assume(true) statements. [2024-11-19 19:34:43,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:43 BoogieIcfgContainer [2024-11-19 19:34:43,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:34:43,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:34:43,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:34:43,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:34:43,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:42" (1/3) ... [2024-11-19 19:34:43,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ce90a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:43, skipping insertion in model container [2024-11-19 19:34:43,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:42" (2/3) ... [2024-11-19 19:34:43,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ce90a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:43, skipping insertion in model container [2024-11-19 19:34:43,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:43" (3/3) ... [2024-11-19 19:34:43,396 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a.c [2024-11-19 19:34:43,411 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:34:43,411 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:34:43,469 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:34:43,478 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;@9dd3bd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:34:43,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:34:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.625) internal successors, (65), 41 states have internal predecessors, (65), 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) [2024-11-19 19:34:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 19:34:43,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:43,490 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:43,491 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:43,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1888439402, now seen corresponding path program 1 times [2024-11-19 19:34:43,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:34:43,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97796562] [2024-11-19 19:34:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:43,510 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 [2024-11-19 19:34:43,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:34:43,514 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) [2024-11-19 19:34:43,515 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 [2024-11-19 19:34:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:34:43,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 19:34:43,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:34:43,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:34:43,729 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:34:43,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:34:43,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97796562] [2024-11-19 19:34:43,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97796562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:34:43,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:34:43,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 19:34:43,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546225408] [2024-11-19 19:34:43,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:34:43,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 19:34:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:34:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 19:34:43,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:34:43,761 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.625) internal successors, (65), 41 states have internal predecessors, (65), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-19 19:34:43,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:34:43,783 INFO L93 Difference]: Finished difference Result 82 states and 128 transitions. [2024-11-19 19:34:43,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 19:34:43,785 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2024-11-19 19:34:43,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:34:43,792 INFO L225 Difference]: With dead ends: 82 [2024-11-19 19:34:43,793 INFO L226 Difference]: Without dead ends: 39 [2024-11-19 19:34:43,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 19:34:43,801 INFO L432 NwaCegarLoop]: 46 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, 46 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 [2024-11-19 19:34:43,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 19:34:43,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-19 19:34:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-19 19:34:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.131578947368421) internal successors, (43), 38 states have internal predecessors, (43), 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) [2024-11-19 19:34:43,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2024-11-19 19:34:43,838 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2024-11-19 19:34:43,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:34:43,839 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2024-11-19 19:34:43,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-11-19 19:34:43,841 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2024-11-19 19:34:43,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 19:34:43,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:43,843 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:43,850 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 [2024-11-19 19:34:44,043 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 [2024-11-19 19:34:44,044 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:44,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:44,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1291452088, now seen corresponding path program 1 times [2024-11-19 19:34:44,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:34:44,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058489626] [2024-11-19 19:34:44,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:44,046 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 [2024-11-19 19:34:44,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:34:44,055 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) [2024-11-19 19:34:44,057 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 [2024-11-19 19:34:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:34:44,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 19:34:44,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:34:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:34:44,485 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:34:44,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:34:44,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058489626] [2024-11-19 19:34:44,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058489626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:34:44,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:34:44,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 19:34:44,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917306821] [2024-11-19 19:34:44,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:34:44,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 19:34:44,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:34:44,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 19:34:44,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 19:34:44,490 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2024-11-19 19:34:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:34:44,769 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2024-11-19 19:34:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 19:34:44,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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 [2024-11-19 19:34:44,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:34:44,770 INFO L225 Difference]: With dead ends: 54 [2024-11-19 19:34:44,771 INFO L226 Difference]: Without dead ends: 26 [2024-11-19 19:34:44,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 19:34:44,772 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 13 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 19:34:44,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 77 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 19:34:44,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-19 19:34:44,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-19 19:34:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 states have internal predecessors, (27), 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) [2024-11-19 19:34:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-11-19 19:34:44,778 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2024-11-19 19:34:44,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:34:44,781 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-11-19 19:34:44,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2024-11-19 19:34:44,781 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-11-19 19:34:44,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 19:34:44,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:44,782 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:44,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-19 19:34:44,982 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 [2024-11-19 19:34:44,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:44,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:44,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1647807069, now seen corresponding path program 1 times [2024-11-19 19:34:44,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:34:44,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267617775] [2024-11-19 19:34:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:44,985 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 [2024-11-19 19:34:44,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:34:44,988 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) [2024-11-19 19:34:44,989 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 [2024-11-19 19:34:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:34:45,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-19 19:34:45,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:34:45,387 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 [2024-11-19 19:34:45,429 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 55 treesize of output 31 [2024-11-19 19:34:45,478 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 [2024-11-19 19:34:45,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-19 19:34:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:34:45,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:34:45,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:34:45,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267617775] [2024-11-19 19:34:45,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267617775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:34:45,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:34:45,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 19:34:45,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37548794] [2024-11-19 19:34:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:34:45,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 19:34:45,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:34:45,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 19:34:45,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 19:34:45,601 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 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) [2024-11-19 19:34:45,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:34:45,964 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2024-11-19 19:34:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 19:34:45,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 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) Word has length 19 [2024-11-19 19:34:45,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:34:45,966 INFO L225 Difference]: With dead ends: 29 [2024-11-19 19:34:45,966 INFO L226 Difference]: Without dead ends: 26 [2024-11-19 19:34:45,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-19 19:34:45,967 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 24 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 19:34:45,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 111 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 19:34:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-19 19:34:45,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-19 19:34:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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) [2024-11-19 19:34:45,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2024-11-19 19:34:45,972 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 19 [2024-11-19 19:34:45,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:34:45,973 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2024-11-19 19:34:45,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 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) [2024-11-19 19:34:45,973 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2024-11-19 19:34:45,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 19:34:45,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:45,974 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:45,982 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 [2024-11-19 19:34:46,178 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 [2024-11-19 19:34:46,179 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:46,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:46,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1322743609, now seen corresponding path program 1 times [2024-11-19 19:34:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:34:46,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436732894] [2024-11-19 19:34:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:46,180 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 [2024-11-19 19:34:46,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:34:46,184 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) [2024-11-19 19:34:46,185 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 [2024-11-19 19:34:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:34:46,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 19:34:46,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:34:46,432 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 [2024-11-19 19:34:46,438 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 34 treesize of output 18 [2024-11-19 19:34:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:34:46,751 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:34:46,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:34:46,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436732894] [2024-11-19 19:34:46,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436732894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:34:46,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:34:46,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 19:34:46,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781327132] [2024-11-19 19:34:46,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:34:46,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 19:34:46,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:34:46,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 19:34:46,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 19:34:46,753 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2024-11-19 19:34:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:34:47,200 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2024-11-19 19:34:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 19:34:47,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 21 [2024-11-19 19:34:47,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:34:47,201 INFO L225 Difference]: With dead ends: 30 [2024-11-19 19:34:47,201 INFO L226 Difference]: Without dead ends: 26 [2024-11-19 19:34:47,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 19:34:47,202 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 19:34:47,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 100 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 19:34:47,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-19 19:34:47,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-19 19:34:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 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) [2024-11-19 19:34:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2024-11-19 19:34:47,210 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 21 [2024-11-19 19:34:47,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:34:47,210 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2024-11-19 19:34:47,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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) [2024-11-19 19:34:47,210 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2024-11-19 19:34:47,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 19:34:47,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:34:47,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:34:47,217 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 [2024-11-19 19:34:47,412 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 [2024-11-19 19:34:47,412 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:34:47,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:34:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1202751826, now seen corresponding path program 1 times [2024-11-19 19:34:47,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:34:47,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050755864] [2024-11-19 19:34:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:34:47,414 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 [2024-11-19 19:34:47,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:34:47,415 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2024-11-19 19:34:47,415 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 (6)] Waiting until timeout for monitored process [2024-11-19 19:34:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 19:34:47,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 19:34:47,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 19:34:47,636 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 [2024-11-19 19:34:47,640 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 34 treesize of output 18 [2024-11-19 19:34:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 19:34:48,197 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 19:34:48,197 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 19:34:48,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050755864] [2024-11-19 19:34:48,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050755864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 19:34:48,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 19:34:48,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 19:34:48,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891603047] [2024-11-19 19:34:48,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 19:34:48,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 19:34:48,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 19:34:48,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 19:34:48,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 19:34:48,199 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2024-11-19 19:34:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 19:34:49,039 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2024-11-19 19:34:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 19:34:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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 25 [2024-11-19 19:34:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 19:34:49,040 INFO L225 Difference]: With dead ends: 26 [2024-11-19 19:34:49,040 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 19:34:49,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-19 19:34:49,041 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 19:34:49,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 101 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 19:34:49,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 19:34:49,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 19:34:49,042 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) [2024-11-19 19:34:49,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 19:34:49,042 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2024-11-19 19:34:49,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 19:34:49,042 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 19:34:49,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2024-11-19 19:34:49,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 19:34:49,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 19:34:49,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:34:49,054 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 (6)] Forceful destruction successful, exit code 0 [2024-11-19 19:34:49,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 [2024-11-19 19:34:49,249 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-19 19:34:49,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 19:34:49,445 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:34:49,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:34:49 BoogieIcfgContainer [2024-11-19 19:34:49,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:34:49,459 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:34:49,459 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:34:49,459 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:34:49,460 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:43" (3/4) ... [2024-11-19 19:34:49,462 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 19:34:49,472 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-11-19 19:34:49,472 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-19 19:34:49,472 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 19:34:49,472 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 19:34:49,561 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 19:34:49,561 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 19:34:49,561 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:34:49,562 INFO L158 Benchmark]: Toolchain (without parser) took 7360.40ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 37.7MB in the beginning and 57.9MB in the end (delta: -20.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-11-19 19:34:49,562 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 50.3MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:34:49,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.62ms. Allocated memory is still 69.2MB. Free memory was 37.5MB in the beginning and 41.0MB in the end (delta: -3.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-19 19:34:49,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.26ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 38.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:34:49,563 INFO L158 Benchmark]: Boogie Preprocessor took 90.94ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 35.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 19:34:49,563 INFO L158 Benchmark]: RCFGBuilder took 671.20ms. Allocated memory is still 69.2MB. Free memory was 35.1MB in the beginning and 36.0MB in the end (delta: -895.3kB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-11-19 19:34:49,563 INFO L158 Benchmark]: TraceAbstraction took 6067.91ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 35.3MB in the beginning and 62.9MB in the end (delta: -27.6MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2024-11-19 19:34:49,564 INFO L158 Benchmark]: Witness Printer took 102.37ms. Allocated memory is still 100.7MB. Free memory was 62.9MB in the beginning and 57.9MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 19:34:49,567 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97ms. Allocated memory is still 50.3MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.62ms. Allocated memory is still 69.2MB. Free memory was 37.5MB in the beginning and 41.0MB in the end (delta: -3.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.26ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 38.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.94ms. Allocated memory is still 69.2MB. Free memory was 38.8MB in the beginning and 35.1MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 671.20ms. Allocated memory is still 69.2MB. Free memory was 35.1MB in the beginning and 36.0MB in the end (delta: -895.3kB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6067.91ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 35.3MB in the beginning and 62.9MB in the end (delta: -27.6MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 102.37ms. Allocated memory is still 100.7MB. Free memory was 62.9MB in the beginning and 57.9MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. 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: 112]: 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 435 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 320 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 241 IncrementalHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 115 mSDtfsCounter, 241 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 38, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 93 ConstructedInterpolants, 41 QuantifiedInterpolants, 1310 SizeOfPredicates, 25 NumberOfNonLiveVariables, 464 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 19]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-19 19:34:49,604 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