./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.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 de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 23:55:13,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 23:55:14,049 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 23:55:14,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 23:55:14,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 23:55:14,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 23:55:14,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 23:55:14,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 23:55:14,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 23:55:14,073 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 23:55:14,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 23:55:14,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 23:55:14,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 23:55:14,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 23:55:14,075 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 23:55:14,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 23:55:14,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 23:55:14,076 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 23:55:14,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 23:55:14,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 23:55:14,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 23:55:14,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 23:55:14,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 23:55:14,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 23:55:14,082 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 23:55:14,082 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 23:55:14,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 23:55:14,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 23:55:14,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 23:55:14,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 23:55:14,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 23:55:14,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 23:55:14,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 23:55:14,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 23:55:14,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 23:55:14,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 23:55:14,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 23:55:14,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 23:55:14,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 23:55:14,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 23:55:14,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 23:55:14,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 23:55:14,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 [2024-10-23 23:55:14,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 23:55:14,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 23:55:14,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 23:55:14,372 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 23:55:14,372 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 23:55:14,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2024-10-23 23:55:15,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 23:55:15,945 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 23:55:15,946 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2024-10-23 23:55:15,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acc1351b6/649772bdcba946c1a82b1604021a0e0b/FLAG16160b871 [2024-10-23 23:55:16,274 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acc1351b6/649772bdcba946c1a82b1604021a0e0b [2024-10-23 23:55:16,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 23:55:16,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 23:55:16,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 23:55:16,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 23:55:16,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 23:55:16,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72101e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16, skipping insertion in model container [2024-10-23 23:55:16,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,331 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 23:55:16,630 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2024-10-23 23:55:16,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 23:55:16,662 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 23:55:16,740 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2024-10-23 23:55:16,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 23:55:16,767 INFO L204 MainTranslator]: Completed translation [2024-10-23 23:55:16,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16 WrapperNode [2024-10-23 23:55:16,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 23:55:16,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 23:55:16,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 23:55:16,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 23:55:16,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,833 INFO L138 Inliner]: procedures = 17, calls = 292, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 792 [2024-10-23 23:55:16,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 23:55:16,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 23:55:16,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 23:55:16,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 23:55:16,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,899 INFO L175 MemorySlicer]: Split 188 memory accesses to 5 slices as follows [2, 7, 2, 136, 41]. 72 percent of accesses are in the largest equivalence class. The 137 initializations are split as follows [2, 7, 2, 126, 0]. The 0 writes are split as follows [0, 0, 0, 0, 0]. [2024-10-23 23:55:16,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,935 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 23:55:16,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 23:55:16,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 23:55:16,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 23:55:16,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (1/1) ... [2024-10-23 23:55:16,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 23:55:16,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:55:16,994 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) [2024-10-23 23:55:17,000 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 [2024-10-23 23:55:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-23 23:55:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-23 23:55:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-23 23:55:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-23 23:55:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-23 23:55:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 23:55:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 23:55:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-23 23:55:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-23 23:55:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-23 23:55:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-23 23:55:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 23:55:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 23:55:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 23:55:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-23 23:55:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-23 23:55:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-23 23:55:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-23 23:55:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-23 23:55:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 23:55:17,230 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 23:55:17,233 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 23:55:17,851 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-10-23 23:55:17,851 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 23:55:17,913 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 23:55:17,913 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-23 23:55:17,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:55:17 BoogieIcfgContainer [2024-10-23 23:55:17,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 23:55:17,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 23:55:17,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 23:55:17,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 23:55:17,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:55:16" (1/3) ... [2024-10-23 23:55:17,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abc5730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:55:17, skipping insertion in model container [2024-10-23 23:55:17,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:55:16" (2/3) ... [2024-10-23 23:55:17,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abc5730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:55:17, skipping insertion in model container [2024-10-23 23:55:17,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:55:17" (3/3) ... [2024-10-23 23:55:17,931 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2024-10-23 23:55:17,967 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 23:55:17,971 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 23:55:18,051 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 23:55:18,057 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;@2dd485be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 23:55:18,058 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 23:55:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:55:18,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-23 23:55:18,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:55:18,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:55:18,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 23:55:18,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:55:18,073 INFO L85 PathProgramCache]: Analyzing trace with hash -801370442, now seen corresponding path program 1 times [2024-10-23 23:55:18,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:55:18,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407718240] [2024-10-23 23:55:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:55:18,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:55:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:55:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:55:19,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:55:19,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407718240] [2024-10-23 23:55:19,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407718240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 23:55:19,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 23:55:19,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-23 23:55:19,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649404335] [2024-10-23 23:55:19,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 23:55:19,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-23 23:55:19,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:55:19,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-23 23:55:19,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-23 23:55:19,819 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 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 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 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) [2024-10-23 23:55:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:55:20,443 INFO L93 Difference]: Finished difference Result 71 states and 115 transitions. [2024-10-23 23:55:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-23 23:55:20,446 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 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) Word has length 43 [2024-10-23 23:55:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:55:20,454 INFO L225 Difference]: With dead ends: 71 [2024-10-23 23:55:20,455 INFO L226 Difference]: Without dead ends: 52 [2024-10-23 23:55:20,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2024-10-23 23:55:20,462 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 67 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 23:55:20,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 430 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 23:55:20,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-23 23:55:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2024-10-23 23:55:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:55:20,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2024-10-23 23:55:20,491 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2024-10-23 23:55:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:55:20,492 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2024-10-23 23:55:20,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 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) [2024-10-23 23:55:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2024-10-23 23:55:20,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-23 23:55:20,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:55:20,494 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:55:20,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 23:55:20,494 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 23:55:20,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:55:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash 439022891, now seen corresponding path program 1 times [2024-10-23 23:55:20,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:55:20,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673652357] [2024-10-23 23:55:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:55:20,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:55:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:55:21,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:55:21,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:55:21,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673652357] [2024-10-23 23:55:21,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673652357] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 23:55:21,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134330407] [2024-10-23 23:55:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:55:21,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:55:21,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:55:21,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 23:55:21,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 23:55:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:55:21,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-23 23:55:21,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 23:55:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:55:22,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 23:55:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:55:22,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134330407] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 23:55:22,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 23:55:22,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 30 [2024-10-23 23:55:22,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029088890] [2024-10-23 23:55:22,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 23:55:22,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-23 23:55:22,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:55:22,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-23 23:55:22,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2024-10-23 23:55:22,572 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 30 states, 30 states have (on average 3.6) internal successors, (108), 30 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:55:26,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:55:26,519 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2024-10-23 23:55:26,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-23 23:55:26,520 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.6) internal successors, (108), 30 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-10-23 23:55:26,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:55:26,521 INFO L225 Difference]: With dead ends: 114 [2024-10-23 23:55:26,521 INFO L226 Difference]: Without dead ends: 111 [2024-10-23 23:55:26,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=683, Invalid=1867, Unknown=0, NotChecked=0, Total=2550 [2024-10-23 23:55:26,524 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 292 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 23:55:26,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 227 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 23:55:26,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-23 23:55:26,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2024-10-23 23:55:26,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.0092592592592593) internal successors, (109), 108 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:55:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2024-10-23 23:55:26,533 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 48 [2024-10-23 23:55:26,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:55:26,533 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2024-10-23 23:55:26,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.6) internal successors, (108), 30 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:55:26,536 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2024-10-23 23:55:26,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-23 23:55:26,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:55:26,540 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:55:26,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 23:55:26,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:55:26,742 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 23:55:26,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:55:26,743 INFO L85 PathProgramCache]: Analyzing trace with hash 665402987, now seen corresponding path program 2 times [2024-10-23 23:55:26,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:55:26,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962669723] [2024-10-23 23:55:26,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:55:26,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:55:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:55:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:55:28,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:55:28,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962669723] [2024-10-23 23:55:28,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962669723] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 23:55:28,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709763770] [2024-10-23 23:55:28,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-23 23:55:28,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:55:28,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:55:28,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 23:55:28,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 23:55:29,055 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-23 23:55:29,055 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-23 23:55:29,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-10-23 23:55:29,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 23:55:29,237 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:55:29,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 23:55:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:55:30,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709763770] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 23:55:30,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 23:55:30,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 26, 26] total 54 [2024-10-23 23:55:30,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804390145] [2024-10-23 23:55:30,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 23:55:30,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-10-23 23:55:30,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:55:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-10-23 23:55:30,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=709, Invalid=2153, Unknown=0, NotChecked=0, Total=2862 [2024-10-23 23:55:30,550 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 54 states, 54 states have (on average 4.222222222222222) internal successors, (228), 54 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:56:08,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:56:08,583 INFO L93 Difference]: Finished difference Result 214 states and 233 transitions. [2024-10-23 23:56:08,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-23 23:56:08,584 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 4.222222222222222) internal successors, (228), 54 states have internal predecessors, (228), 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 108 [2024-10-23 23:56:08,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:56:08,586 INFO L225 Difference]: With dead ends: 214 [2024-10-23 23:56:08,586 INFO L226 Difference]: Without dead ends: 211 [2024-10-23 23:56:08,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 38.3s TimeCoverageRelationStatistics Valid=2208, Invalid=6722, Unknown=0, NotChecked=0, Total=8930 [2024-10-23 23:56:08,589 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 355 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-23 23:56:08,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 593 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-23 23:56:08,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-23 23:56:08,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 209. [2024-10-23 23:56:08,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.0048076923076923) internal successors, (209), 208 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:56:08,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2024-10-23 23:56:08,609 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 108 [2024-10-23 23:56:08,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:56:08,609 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2024-10-23 23:56:08,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 4.222222222222222) internal successors, (228), 54 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:56:08,610 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2024-10-23 23:56:08,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-10-23 23:56:08,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 23:56:08,620 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 23:56:08,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 23:56:08,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-23 23:56:08,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 23:56:08,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 23:56:08,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1000414421, now seen corresponding path program 3 times [2024-10-23 23:56:08,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 23:56:08,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946399557] [2024-10-23 23:56:08,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 23:56:08,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 23:56:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 23:56:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 23:56:13,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 23:56:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946399557] [2024-10-23 23:56:13,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946399557] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 23:56:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953883128] [2024-10-23 23:56:13,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-23 23:56:13,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:56:13,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 23:56:13,991 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 23:56:13,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-23 23:56:14,488 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-23 23:56:14,488 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-23 23:56:14,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-23 23:56:14,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 23:56:15,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-23 23:56:15,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 18 [2024-10-23 23:56:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 96 proven. 131 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2024-10-23 23:56:16,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 23:56:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2024-10-23 23:56:20,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953883128] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 23:56:20,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 23:56:20,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 9, 9] total 64 [2024-10-23 23:56:20,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637767463] [2024-10-23 23:56:20,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 23:56:20,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-10-23 23:56:20,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 23:56:20,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-10-23 23:56:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=436, Invalid=3596, Unknown=0, NotChecked=0, Total=4032 [2024-10-23 23:56:20,106 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand has 64 states, 64 states have (on average 4.8125) internal successors, (308), 64 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:56:27,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 23:56:27,984 INFO L93 Difference]: Finished difference Result 211 states and 211 transitions. [2024-10-23 23:56:27,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2024-10-23 23:56:27,984 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.8125) internal successors, (308), 64 states have internal predecessors, (308), 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 208 [2024-10-23 23:56:27,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 23:56:27,985 INFO L225 Difference]: With dead ends: 211 [2024-10-23 23:56:27,985 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 23:56:27,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6029 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=2114, Invalid=27298, Unknown=0, NotChecked=0, Total=29412 [2024-10-23 23:56:27,992 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 491 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 7642 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 7707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 7642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-23 23:56:27,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 2022 Invalid, 7707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 7642 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-23 23:56:27,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 23:56:27,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 23:56:27,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:56:27,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 23:56:27,993 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2024-10-23 23:56:27,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 23:56:27,994 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 23:56:27,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.8125) internal successors, (308), 64 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 23:56:27,994 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 23:56:27,994 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 23:56:27,997 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 23:56:28,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-23 23:56:28,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 23:56:28,201 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-10-23 23:56:28,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 23:56:28,207 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 23:56:28,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:56:28 BoogieIcfgContainer [2024-10-23 23:56:28,213 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 23:56:28,213 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 23:56:28,214 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 23:56:28,214 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 23:56:28,214 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:55:17" (3/4) ... [2024-10-23 23:56:28,218 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 23:56:28,240 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2024-10-23 23:56:28,241 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-23 23:56:28,242 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-23 23:56:28,243 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-23 23:56:28,244 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 23:56:28,522 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 23:56:28,522 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 23:56:28,522 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 23:56:28,523 INFO L158 Benchmark]: Toolchain (without parser) took 72244.71ms. Allocated memory was 132.1MB in the beginning and 482.3MB in the end (delta: 350.2MB). Free memory was 62.1MB in the beginning and 424.6MB in the end (delta: -362.5MB). Peak memory consumption was 265.3MB. Max. memory is 16.1GB. [2024-10-23 23:56:28,523 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 132.1MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 23:56:28,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.94ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 61.8MB in the beginning and 135.5MB in the end (delta: -73.6MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2024-10-23 23:56:28,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.68ms. Allocated memory is still 174.1MB. Free memory was 135.5MB in the beginning and 130.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 23:56:28,524 INFO L158 Benchmark]: Boogie Preprocessor took 116.78ms. Allocated memory is still 174.1MB. Free memory was 130.2MB in the beginning and 122.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-23 23:56:28,525 INFO L158 Benchmark]: RCFGBuilder took 960.22ms. Allocated memory is still 174.1MB. Free memory was 122.9MB in the beginning and 135.6MB in the end (delta: -12.7MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2024-10-23 23:56:28,525 INFO L158 Benchmark]: TraceAbstraction took 70297.74ms. Allocated memory was 174.1MB in the beginning and 482.3MB in the end (delta: 308.3MB). Free memory was 134.6MB in the beginning and 164.1MB in the end (delta: -29.6MB). Peak memory consumption was 277.7MB. Max. memory is 16.1GB. [2024-10-23 23:56:28,525 INFO L158 Benchmark]: Witness Printer took 309.07ms. Allocated memory is still 482.3MB. Free memory was 164.1MB in the beginning and 424.6MB in the end (delta: -260.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-23 23:56:28,527 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 132.1MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.94ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 61.8MB in the beginning and 135.5MB in the end (delta: -73.6MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.68ms. Allocated memory is still 174.1MB. Free memory was 135.5MB in the beginning and 130.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.78ms. Allocated memory is still 174.1MB. Free memory was 130.2MB in the beginning and 122.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 960.22ms. Allocated memory is still 174.1MB. Free memory was 122.9MB in the beginning and 135.6MB in the end (delta: -12.7MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. * TraceAbstraction took 70297.74ms. Allocated memory was 174.1MB in the beginning and 482.3MB in the end (delta: 308.3MB). Free memory was 134.6MB in the beginning and 164.1MB in the end (delta: -29.6MB). Peak memory consumption was 277.7MB. Max. memory is 16.1GB. * Witness Printer took 309.07ms. Allocated memory is still 482.3MB. Free memory was 164.1MB in the beginning and 424.6MB in the end (delta: -260.5MB). Peak memory consumption was 16.8MB. 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: 467]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.2s, OverallIterations: 4, TraceHistogramMax: 34, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 50.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1205 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1205 mSDsluCounter, 3272 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3151 mSDsCounter, 194 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10652 IncrementalHoareTripleChecker+Invalid, 10846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 194 mSolverCounterUnsat, 121 mSDtfsCounter, 10652 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1011 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7374 ImplicationChecksByTransitivity, 49.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=3, InterpolantAutomatonStates: 200, 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, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 771 NumberOfCodeBlocks, 616 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1125 ConstructedInterpolants, 197 QuantifiedInterpolants, 16178 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2945 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 5219/9513 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 RESULT: Ultimate proved your program to be correct! [2024-10-23 23:56:28,559 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