./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.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 d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 05:18:56,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 05:18:56,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 05:18:56,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 05:18:56,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 05:18:56,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 05:18:56,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 05:18:56,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 05:18:56,647 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 05:18:56,651 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 05:18:56,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 05:18:56,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 05:18:56,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 05:18:56,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 05:18:56,653 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 05:18:56,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 05:18:56,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 05:18:56,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 05:18:56,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 05:18:56,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 05:18:56,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 05:18:56,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 05:18:56,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 05:18:56,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 05:18:56,658 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 05:18:56,658 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 05:18:56,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 05:18:56,659 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 05:18:56,659 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 05:18:56,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 05:18:56,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 05:18:56,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 05:18:56,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:18:56,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 05:18:56,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 05:18:56,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 05:18:56,661 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 05:18:56,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 05:18:56,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 05:18:56,662 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 05:18:56,663 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 05:18:56,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 05:18:56,664 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a [2024-11-16 05:18:56,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 05:18:56,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 05:18:56,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 05:18:56,976 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 05:18:56,976 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 05:18:56,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2024-11-16 05:18:58,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 05:18:58,610 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 05:18:58,611 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2024-11-16 05:18:58,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426fb5eed/37a8d718431b43aa9e4f824aedee1da4/FLAG89a4c1b6e [2024-11-16 05:18:58,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426fb5eed/37a8d718431b43aa9e4f824aedee1da4 [2024-11-16 05:18:58,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 05:18:58,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 05:18:58,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 05:18:58,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 05:18:58,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 05:18:58,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:58,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc69e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58, skipping insertion in model container [2024-11-16 05:18:58,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:58,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 05:18:58,895 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_0920a.c[3541,3554] [2024-11-16 05:18:58,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:18:58,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 05:18:58,944 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_0920a.c[3541,3554] [2024-11-16 05:18:58,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:18:58,971 INFO L204 MainTranslator]: Completed translation [2024-11-16 05:18:58,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58 WrapperNode [2024-11-16 05:18:58,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 05:18:58,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 05:18:58,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 05:18:58,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 05:18:58,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:58,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,016 INFO L138 Inliner]: procedures = 19, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 202 [2024-11-16 05:18:59,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 05:18:59,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 05:18:59,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 05:18:59,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 05:18:59,050 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,069 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-11-16 05:18:59,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,097 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 05:18:59,114 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 05:18:59,114 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 05:18:59,114 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 05:18:59,115 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (1/1) ... [2024-11-16 05:18:59,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:18:59,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 05:18:59,163 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) [2024-11-16 05:18:59,166 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 [2024-11-16 05:18:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 05:18:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 05:18:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 05:18:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 05:18:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 05:18:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 05:18:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 05:18:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-16 05:18:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-16 05:18:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-16 05:18:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-16 05:18:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-16 05:18:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 05:18:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 05:18:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 05:18:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 05:18:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 05:18:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-16 05:18:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-16 05:18:59,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-16 05:18:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-16 05:18:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-16 05:18:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 05:18:59,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 05:18:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 05:18:59,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 05:18:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 05:18:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 05:18:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 05:18:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 05:18:59,318 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 05:18:59,321 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 05:18:59,613 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-16 05:18:59,613 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 05:18:59,652 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 05:18:59,652 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 05:18:59,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:18:59 BoogieIcfgContainer [2024-11-16 05:18:59,653 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 05:18:59,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 05:18:59,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 05:18:59,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 05:18:59,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:18:58" (1/3) ... [2024-11-16 05:18:59,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23156ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:18:59, skipping insertion in model container [2024-11-16 05:18:59,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:18:58" (2/3) ... [2024-11-16 05:18:59,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23156ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:18:59, skipping insertion in model container [2024-11-16 05:18:59,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:18:59" (3/3) ... [2024-11-16 05:18:59,662 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2024-11-16 05:18:59,676 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 05:18:59,677 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 05:18:59,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 05:18:59,736 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;@572ad3bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 05:18:59,737 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 05:18:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 1.6153846153846154) internal successors, (84), 53 states have internal predecessors, (84), 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) [2024-11-16 05:18:59,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 05:18:59,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:18:59,754 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:18:59,755 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:18:59,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:18:59,761 INFO L85 PathProgramCache]: Analyzing trace with hash -783388093, now seen corresponding path program 1 times [2024-11-16 05:18:59,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:18:59,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490091774] [2024-11-16 05:18:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:18:59,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:18:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:18:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:18:59,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 05:18:59,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490091774] [2024-11-16 05:18:59,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490091774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:18:59,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:18:59,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 05:18:59,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544150650] [2024-11-16 05:18:59,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:18:59,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 05:18:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 05:18:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 05:18:59,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 05:18:59,985 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 1.6153846153846154) internal successors, (84), 53 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:00,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:19:00,024 INFO L93 Difference]: Finished difference Result 104 states and 163 transitions. [2024-11-16 05:19:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 05:19:00,027 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-16 05:19:00,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:19:00,036 INFO L225 Difference]: With dead ends: 104 [2024-11-16 05:19:00,036 INFO L226 Difference]: Without dead ends: 49 [2024-11-16 05:19:00,040 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 [2024-11-16 05:19:00,045 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:19:00,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:19:00,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-16 05:19:00,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-16 05:19:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 48 states have internal predecessors, (68), 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) [2024-11-16 05:19:00,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2024-11-16 05:19:00,085 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 11 [2024-11-16 05:19:00,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:19:00,085 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2024-11-16 05:19:00,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:00,086 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2024-11-16 05:19:00,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 05:19:00,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:19:00,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:19:00,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 05:19:00,088 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:19:00,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:19:00,090 INFO L85 PathProgramCache]: Analyzing trace with hash 756051119, now seen corresponding path program 1 times [2024-11-16 05:19:00,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:19:00,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942050770] [2024-11-16 05:19:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:19:00,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:19:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:19:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:19:00,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 05:19:00,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942050770] [2024-11-16 05:19:00,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942050770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:19:00,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:19:00,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 05:19:00,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593802132] [2024-11-16 05:19:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:19:00,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 05:19:00,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 05:19:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 05:19:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 05:19:00,248 INFO L87 Difference]: Start difference. First operand 49 states and 68 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:00,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:19:00,281 INFO L93 Difference]: Finished difference Result 91 states and 128 transitions. [2024-11-16 05:19:00,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 05:19:00,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-16 05:19:00,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:19:00,282 INFO L225 Difference]: With dead ends: 91 [2024-11-16 05:19:00,282 INFO L226 Difference]: Without dead ends: 49 [2024-11-16 05:19:00,283 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 [2024-11-16 05:19:00,284 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:19:00,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:19:00,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-16 05:19:00,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-16 05:19:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 48 states have internal predecessors, (67), 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) [2024-11-16 05:19:00,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 67 transitions. [2024-11-16 05:19:00,289 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 67 transitions. Word has length 12 [2024-11-16 05:19:00,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:19:00,290 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 67 transitions. [2024-11-16 05:19:00,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:00,290 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 67 transitions. [2024-11-16 05:19:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-16 05:19:00,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:19:00,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:19:00,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 05:19:00,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:19:00,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:19:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash -336622220, now seen corresponding path program 1 times [2024-11-16 05:19:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:19:00,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93799631] [2024-11-16 05:19:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:19:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:19:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 05:19:00,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 05:19:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 05:19:00,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 05:19:00,475 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 05:19:00,476 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 05:19:00,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 05:19:00,482 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 05:19:00,521 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 05:19:00,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 05:19:00 BoogieIcfgContainer [2024-11-16 05:19:00,526 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 05:19:00,527 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 05:19:00,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 05:19:00,528 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 05:19:00,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:18:59" (3/4) ... [2024-11-16 05:19:00,532 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 05:19:00,533 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 05:19:00,534 INFO L158 Benchmark]: Toolchain (without parser) took 1890.91ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 77.3MB in the beginning and 157.9MB in the end (delta: -80.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:19:00,534 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:19:00,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.83ms. Allocated memory is still 151.0MB. Free memory was 77.2MB in the beginning and 62.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 05:19:00,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.55ms. Allocated memory is still 151.0MB. Free memory was 62.3MB in the beginning and 60.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:19:00,536 INFO L158 Benchmark]: Boogie Preprocessor took 95.75ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 60.2MB in the beginning and 177.3MB in the end (delta: -117.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-16 05:19:00,536 INFO L158 Benchmark]: IcfgBuilder took 539.25ms. Allocated memory is still 205.5MB. Free memory was 177.3MB in the beginning and 153.7MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-16 05:19:00,538 INFO L158 Benchmark]: TraceAbstraction took 870.03ms. Allocated memory is still 205.5MB. Free memory was 152.2MB in the beginning and 157.9MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:19:00,539 INFO L158 Benchmark]: Witness Printer took 5.91ms. Allocated memory is still 205.5MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:19:00,540 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 151.0MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.83ms. Allocated memory is still 151.0MB. Free memory was 77.2MB in the beginning and 62.5MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.55ms. Allocated memory is still 151.0MB. Free memory was 62.3MB in the beginning and 60.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.75ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 60.2MB in the beginning and 177.3MB in the end (delta: -117.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * IcfgBuilder took 539.25ms. Allocated memory is still 205.5MB. Free memory was 177.3MB in the beginning and 153.7MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 870.03ms. Allocated memory is still 205.5MB. Free memory was 152.2MB in the beginning and 157.9MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.91ms. Allocated memory is still 205.5MB. Free memory is still 157.9MB. 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: 142]: 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 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] float x = __VERIFIER_nondet_float(); [L136] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] EXPR x < 0 && isfinite_float(x) [L136] CALL, EXPR isfinite_float(x) [L117] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6434062349, zero_log=0] [L119] ieee_float_shape_type gf_u; [L120] gf_u.value = (x) [L121] EXPR gf_u.word [L121] (ix) = gf_u.word [L122] COND FALSE !(0) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ix=2139095039, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6434062349, zero_log=0] [L123] ix &= 0x7fffffff [L124] return (((ix) < 0x7f800000L)); VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \result=1, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6434062349, zero_log=0] [L136] RET, EXPR isfinite_float(x) [L136] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6434062349, zero_log=0] [L136] COND TRUE (x < 0 && isfinite_float(x)) [L138] CALL, EXPR __ieee754_logf(x) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6434062349, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L42] COND FALSE !(0) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ix=-2147483648, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6434062349, zero_log=0] [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ix=-2147483648, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6434062349, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6434062349, zero_log=0] [L138] RET, EXPR __ieee754_logf(x) [L138] float res = __ieee754_logf(x); [L141] CALL, EXPR isnan_float(res) [L113] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \result=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L141] RET, EXPR isnan_float(res) [L141] COND TRUE !isnan_float(res) [L142] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 192 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 133 mSDtfsCounter, 16 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=54occurred 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, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 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 [2024-11-16 05:19:00,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.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 d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 05:19:02,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 05:19:02,802 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-16 05:19:02,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 05:19:02,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 05:19:02,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 05:19:02,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 05:19:02,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 05:19:02,837 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 05:19:02,838 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 05:19:02,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 05:19:02,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 05:19:02,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 05:19:02,841 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 05:19:02,841 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 05:19:02,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 05:19:02,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 05:19:02,842 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 05:19:02,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 05:19:02,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 05:19:02,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 05:19:02,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 05:19:02,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 05:19:02,847 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 05:19:02,847 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 05:19:02,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 05:19:02,847 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 05:19:02,847 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 05:19:02,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 05:19:02,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 05:19:02,848 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 05:19:02,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 05:19:02,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 05:19:02,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 05:19:02,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:19:02,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 05:19:02,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 05:19:02,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 05:19:02,851 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 05:19:02,851 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 05:19:02,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 05:19:02,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 05:19:02,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 05:19:02,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 05:19:02,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a [2024-11-16 05:19:03,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 05:19:03,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 05:19:03,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 05:19:03,212 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 05:19:03,212 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 05:19:03,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2024-11-16 05:19:04,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 05:19:04,970 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 05:19:04,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2024-11-16 05:19:04,988 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cc7f95ca/cc61940ddaa74e27aeda427e92008a6e/FLAG97a88c0c7 [2024-11-16 05:19:05,007 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cc7f95ca/cc61940ddaa74e27aeda427e92008a6e [2024-11-16 05:19:05,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 05:19:05,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 05:19:05,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 05:19:05,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 05:19:05,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 05:19:05,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6962d65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05, skipping insertion in model container [2024-11-16 05:19:05,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 05:19:05,318 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_0920a.c[3541,3554] [2024-11-16 05:19:05,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:19:05,347 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 05:19:05,388 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_0920a.c[3541,3554] [2024-11-16 05:19:05,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:19:05,416 INFO L204 MainTranslator]: Completed translation [2024-11-16 05:19:05,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05 WrapperNode [2024-11-16 05:19:05,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 05:19:05,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 05:19:05,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 05:19:05,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 05:19:05,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,471 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 167 [2024-11-16 05:19:05,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 05:19:05,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 05:19:05,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 05:19:05,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 05:19:05,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,486 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,514 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-11-16 05:19:05,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,527 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 05:19:05,536 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 05:19:05,536 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 05:19:05,536 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 05:19:05,537 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (1/1) ... [2024-11-16 05:19:05,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:19:05,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 05:19:05,568 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) [2024-11-16 05:19:05,570 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 [2024-11-16 05:19:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 05:19:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 05:19:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-16 05:19:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-16 05:19:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-16 05:19:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-16 05:19:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 05:19:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-16 05:19:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-16 05:19:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-16 05:19:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-16 05:19:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-16 05:19:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-16 05:19:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-16 05:19:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 05:19:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-16 05:19:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-16 05:19:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-16 05:19:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-16 05:19:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-16 05:19:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-16 05:19:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 05:19:05,719 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 05:19:05,721 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 05:19:26,749 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-16 05:19:26,749 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 05:19:26,760 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 05:19:26,761 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 05:19:26,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:19:26 BoogieIcfgContainer [2024-11-16 05:19:26,762 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 05:19:26,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 05:19:26,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 05:19:26,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 05:19:26,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:19:05" (1/3) ... [2024-11-16 05:19:26,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6febcb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:19:26, skipping insertion in model container [2024-11-16 05:19:26,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:19:05" (2/3) ... [2024-11-16 05:19:26,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6febcb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:19:26, skipping insertion in model container [2024-11-16 05:19:26,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:19:26" (3/3) ... [2024-11-16 05:19:26,770 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2024-11-16 05:19:26,782 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 05:19:26,783 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 05:19:26,841 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 05:19:26,849 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;@675a3a93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 05:19:26,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 05:19:26,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 37 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 05:19:26,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:19:26,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:19:26,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:19:26,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:19:26,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2052599930, now seen corresponding path program 1 times [2024-11-16 05:19:26,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:19:26,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103116714] [2024-11-16 05:19:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:19:26,881 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 [2024-11-16 05:19:26,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:19:26,884 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) [2024-11-16 05:19:26,886 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 [2024-11-16 05:19:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:19:27,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 05:19:27,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:19:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:19:27,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:19:27,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:19:27,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103116714] [2024-11-16 05:19:27,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103116714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:19:27,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:19:27,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 05:19:27,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980450985] [2024-11-16 05:19:27,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:19:27,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 05:19:27,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:19:27,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 05:19:27,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 05:19:27,370 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 37 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:27,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:19:27,390 INFO L93 Difference]: Finished difference Result 72 states and 113 transitions. [2024-11-16 05:19:27,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 05:19:27,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-16 05:19:27,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:19:27,402 INFO L225 Difference]: With dead ends: 72 [2024-11-16 05:19:27,402 INFO L226 Difference]: Without dead ends: 33 [2024-11-16 05:19:27,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 05:19:27,410 INFO L432 NwaCegarLoop]: 49 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, 49 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 [2024-11-16 05:19:27,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:19:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-16 05:19:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-16 05:19:27,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 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) [2024-11-16 05:19:27,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2024-11-16 05:19:27,447 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2024-11-16 05:19:27,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:19:27,448 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2024-11-16 05:19:27,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2024-11-16 05:19:27,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 05:19:27,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:19:27,450 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:19:27,468 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 [2024-11-16 05:19:27,650 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 [2024-11-16 05:19:27,651 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:19:27,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:19:27,652 INFO L85 PathProgramCache]: Analyzing trace with hash 38407727, now seen corresponding path program 1 times [2024-11-16 05:19:27,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:19:27,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012757434] [2024-11-16 05:19:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:19:27,654 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 [2024-11-16 05:19:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:19:27,657 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) [2024-11-16 05:19:27,659 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 [2024-11-16 05:19:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:19:28,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 05:19:28,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:19:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:19:28,201 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:19:28,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:19:28,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012757434] [2024-11-16 05:19:28,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012757434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:19:28,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:19:28,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 05:19:28,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113798648] [2024-11-16 05:19:28,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:19:28,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 05:19:28,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:19:28,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 05:19:28,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 05:19:28,205 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:19:28,281 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2024-11-16 05:19:28,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 05:19:28,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-16 05:19:28,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:19:28,283 INFO L225 Difference]: With dead ends: 59 [2024-11-16 05:19:28,283 INFO L226 Difference]: Without dead ends: 33 [2024-11-16 05:19:28,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 05:19:28,285 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 05:19:28,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 05:19:28,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-16 05:19:28,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-16 05:19:28,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 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) [2024-11-16 05:19:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2024-11-16 05:19:28,290 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2024-11-16 05:19:28,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:19:28,291 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2024-11-16 05:19:28,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-11-16 05:19:28,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-16 05:19:28,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:19:28,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:19:28,306 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 [2024-11-16 05:19:28,493 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 [2024-11-16 05:19:28,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:19:28,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:19:28,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1792044980, now seen corresponding path program 1 times [2024-11-16 05:19:28,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:19:28,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662903827] [2024-11-16 05:19:28,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:19:28,495 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 [2024-11-16 05:19:28,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:19:28,501 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) [2024-11-16 05:19:28,502 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 [2024-11-16 05:19:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:19:28,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 05:19:28,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:19:29,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:19:29,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:19:29,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:19:29,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662903827] [2024-11-16 05:19:29,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662903827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:19:29,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:19:29,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 05:19:29,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986292931] [2024-11-16 05:19:29,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:19:29,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 05:19:29,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:19:29,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 05:19:29,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 05:19:29,913 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:31,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:19:31,171 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2024-11-16 05:19:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 05:19:31,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-16 05:19:31,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:19:31,172 INFO L225 Difference]: With dead ends: 38 [2024-11-16 05:19:31,172 INFO L226 Difference]: Without dead ends: 18 [2024-11-16 05:19:31,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 05:19:31,174 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 05:19:31,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 47 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 05:19:31,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-16 05:19:31,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-16 05:19:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:31,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2024-11-16 05:19:31,178 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2024-11-16 05:19:31,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:19:31,178 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2024-11-16 05:19:31,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2024-11-16 05:19:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-16 05:19:31,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:19:31,179 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:19:31,197 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 (4)] Forceful destruction successful, exit code 0 [2024-11-16 05:19:31,379 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 [2024-11-16 05:19:31,380 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:19:31,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:19:31,381 INFO L85 PathProgramCache]: Analyzing trace with hash -212777411, now seen corresponding path program 1 times [2024-11-16 05:19:31,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:19:31,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36525278] [2024-11-16 05:19:31,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:19:31,382 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 [2024-11-16 05:19:31,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:19:31,385 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) [2024-11-16 05:19:31,386 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 [2024-11-16 05:19:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:19:31,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 05:19:31,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:19:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:19:33,245 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:19:33,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:19:33,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36525278] [2024-11-16 05:19:33,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36525278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:19:33,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:19:33,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 05:19:33,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224094752] [2024-11-16 05:19:33,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:19:33,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 05:19:33,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:19:33,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 05:19:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 05:19:33,248 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:34,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:19:34,230 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2024-11-16 05:19:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 05:19:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-16 05:19:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:19:34,231 INFO L225 Difference]: With dead ends: 18 [2024-11-16 05:19:34,231 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 05:19:34,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 05:19:34,232 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 05:19:34,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 43 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 05:19:34,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 05:19:34,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 05:19:34,234 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) [2024-11-16 05:19:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 05:19:34,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-16 05:19:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:19:34,234 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 05:19:34,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:19:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 05:19:34,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 05:19:34,237 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 05:19:34,251 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 (5)] Ended with exit code 0 [2024-11-16 05:19:34,437 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 [2024-11-16 05:19:34,441 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-16 05:19:34,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 05:19:34,741 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 05:19:34,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 05:19:34 BoogieIcfgContainer [2024-11-16 05:19:34,776 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 05:19:34,777 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 05:19:34,777 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 05:19:34,777 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 05:19:34,777 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:19:26" (3/4) ... [2024-11-16 05:19:34,784 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 05:19:34,801 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-16 05:19:34,806 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-16 05:19:34,807 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 05:19:34,807 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 05:19:34,970 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 05:19:34,970 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 05:19:34,970 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 05:19:34,971 INFO L158 Benchmark]: Toolchain (without parser) took 29957.77ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 40.5MB in the beginning and 66.5MB in the end (delta: -25.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2024-11-16 05:19:34,971 INFO L158 Benchmark]: CDTParser took 1.09ms. Allocated memory is still 48.2MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:19:34,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.55ms. Allocated memory is still 69.2MB. Free memory was 40.3MB in the beginning and 45.0MB in the end (delta: -4.6MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2024-11-16 05:19:34,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.77ms. Allocated memory is still 69.2MB. Free memory was 45.0MB in the beginning and 43.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:19:34,974 INFO L158 Benchmark]: Boogie Preprocessor took 63.39ms. Allocated memory is still 69.2MB. Free memory was 43.0MB in the beginning and 39.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:19:34,974 INFO L158 Benchmark]: IcfgBuilder took 21225.77ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 38.0MB in the end (delta: 1.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-11-16 05:19:34,974 INFO L158 Benchmark]: TraceAbstraction took 8012.64ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 72.7MB in the end (delta: -35.4MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2024-11-16 05:19:34,975 INFO L158 Benchmark]: Witness Printer took 193.72ms. Allocated memory is still 96.5MB. Free memory was 72.7MB in the beginning and 66.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 05:19:34,976 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09ms. Allocated memory is still 48.2MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.55ms. Allocated memory is still 69.2MB. Free memory was 40.3MB in the beginning and 45.0MB in the end (delta: -4.6MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.77ms. Allocated memory is still 69.2MB. Free memory was 45.0MB in the beginning and 43.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.39ms. Allocated memory is still 69.2MB. Free memory was 43.0MB in the beginning and 39.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 21225.77ms. Allocated memory is still 69.2MB. Free memory was 39.5MB in the beginning and 38.0MB in the end (delta: 1.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8012.64ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 72.7MB in the end (delta: -35.4MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 193.72ms. Allocated memory is still 96.5MB. Free memory was 72.7MB in the beginning and 66.5MB in the end (delta: 6.3MB). 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: 142]: 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 116 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 11 QuantifiedInterpolants, 245 SizeOfPredicates, 5 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Location Invariant Derived location invariant: null - InvariantResult [Line: 63]: Location Invariant Derived location invariant: null - InvariantResult [Line: 38]: Location Invariant Derived location invariant: null - InvariantResult [Line: 118]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 05:19:35,133 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