./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1d5fa637 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --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 2f03a9521f9986f7627623e3bf6c079dbfbe3dc9d9c229ed8d14a2828a7d6850 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 08:44:12,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 08:44:12,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 08:44:12,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 08:44:12,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 08:44:12,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 08:44:12,739 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 08:44:12,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 08:44:12,740 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 08:44:12,740 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 08:44:12,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 08:44:12,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 08:44:12,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 08:44:12,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 08:44:12,742 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 08:44:12,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 08:44:12,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 08:44:12,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 08:44:12,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 08:44:12,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 08:44:12,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 08:44:12,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 08:44:12,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 08:44:12,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 08:44:12,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 08:44:12,748 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 08:44:12,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 08:44:12,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 08:44:12,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 08:44:12,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 08:44:12,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 08:44:12,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 08:44:12,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 08:44:12,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 08:44:12,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 08:44:12,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 08:44:12,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 08:44:12,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 08:44:12,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 08:44:12,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 08:44:12,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 08:44:12,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 08:44:12,752 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/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f03a9521f9986f7627623e3bf6c079dbfbe3dc9d9c229ed8d14a2828a7d6850 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-13 08:44:12,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 08:44:13,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 08:44:13,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 08:44:13,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 08:44:13,034 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 08:44:13,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-13 08:44:14,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 08:44:14,609 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 08:44:14,610 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-13 08:44:14,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/381da6685/870de05271fe4cc69bd3f030fd17d2c9/FLAG69b1aa652 [2024-09-13 08:44:14,655 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/381da6685/870de05271fe4cc69bd3f030fd17d2c9 [2024-09-13 08:44:14,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 08:44:14,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-13 08:44:14,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 08:44:14,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 08:44:14,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 08:44:14,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c29f2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14, skipping insertion in model container [2024-09-13 08:44:14,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 08:44:14,823 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-13 08:44:14,829 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-13 08:44:14,832 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-13 08:44:14,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 08:44:14,846 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 08:44:14,858 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-13 08:44:14,861 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-13 08:44:14,862 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-13 08:44:14,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 08:44:14,879 INFO L204 MainTranslator]: Completed translation [2024-09-13 08:44:14,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14 WrapperNode [2024-09-13 08:44:14,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 08:44:14,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 08:44:14,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 08:44:14,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 08:44:14,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,895 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-13 08:44:14,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 08:44:14,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 08:44:14,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 08:44:14,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 08:44:14,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,909 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,922 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 08:44:14,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 08:44:14,933 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 08:44:14,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 08:44:14,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 08:44:14,934 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (1/1) ... [2024-09-13 08:44:14,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 08:44:14,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 08:44:14,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 08:44:14,973 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 08:44:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 08:44:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 08:44:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 08:44:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 08:44:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 08:44:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 08:44:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 08:44:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 08:44:15,058 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 08:44:15,060 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 08:44:15,235 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-09-13 08:44:15,235 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 08:44:15,261 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 08:44:15,262 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 08:44:15,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 08:44:15 BoogieIcfgContainer [2024-09-13 08:44:15,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 08:44:15,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 08:44:15,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 08:44:15,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 08:44:15,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 08:44:14" (1/3) ... [2024-09-13 08:44:15,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb646d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 08:44:15, skipping insertion in model container [2024-09-13 08:44:15,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:44:14" (2/3) ... [2024-09-13 08:44:15,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb646d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 08:44:15, skipping insertion in model container [2024-09-13 08:44:15,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 08:44:15" (3/3) ... [2024-09-13 08:44:15,269 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-13 08:44:15,282 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 08:44:15,282 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-13 08:44:15,351 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 08:44:15,358 INFO L336 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=All, 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;@722998b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 08:44:15,358 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-13 08:44:15,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 18 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 08:44:15,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-13 08:44:15,369 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 08:44:15,371 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 08:44:15,372 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 08:44:15,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 08:44:15,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1351205091, now seen corresponding path program 1 times [2024-09-13 08:44:15,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 08:44:15,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782897729] [2024-09-13 08:44:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 08:44:15,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 08:44:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 08:44:15,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 08:44:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 08:44:15,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 08:44:15,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 08:44:15,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782897729] [2024-09-13 08:44:15,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782897729] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 08:44:15,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 08:44:15,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-13 08:44:15,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448325972] [2024-09-13 08:44:15,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 08:44:15,701 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 08:44:15,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 08:44:15,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 08:44:15,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 08:44:15,721 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 18 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 08:44:15,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 08:44:15,850 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2024-09-13 08:44:15,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 08:44:15,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-13 08:44:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 08:44:15,859 INFO L225 Difference]: With dead ends: 29 [2024-09-13 08:44:15,859 INFO L226 Difference]: Without dead ends: 17 [2024-09-13 08:44:15,863 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-13 08:44:15,868 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 27 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-13 08:44:15,869 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 15 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-13 08:44:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-09-13 08:44:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-09-13 08:44:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 08:44:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-09-13 08:44:15,912 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2024-09-13 08:44:15,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 08:44:15,913 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-09-13 08:44:15,913 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 08:44:15,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 08:44:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-09-13 08:44:15,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-13 08:44:15,916 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 08:44:15,916 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 08:44:15,916 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 08:44:15,917 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 08:44:15,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 08:44:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1428063013, now seen corresponding path program 1 times [2024-09-13 08:44:15,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 08:44:15,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023902379] [2024-09-13 08:44:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 08:44:15,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 08:44:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 08:44:16,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 08:44:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 08:44:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 08:44:16,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 08:44:16,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023902379] [2024-09-13 08:44:16,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023902379] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 08:44:16,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 08:44:16,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-13 08:44:16,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085194827] [2024-09-13 08:44:16,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 08:44:16,085 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 08:44:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 08:44:16,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 08:44:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-13 08:44:16,086 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 08:44:16,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 08:44:16,164 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2024-09-13 08:44:16,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 08:44:16,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-13 08:44:16,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 08:44:16,165 INFO L225 Difference]: With dead ends: 17 [2024-09-13 08:44:16,165 INFO L226 Difference]: Without dead ends: 15 [2024-09-13 08:44:16,165 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-13 08:44:16,166 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 08:44:16,167 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 10 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 08:44:16,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-09-13 08:44:16,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-09-13 08:44:16,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 08:44:16,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-09-13 08:44:16,171 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2024-09-13 08:44:16,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 08:44:16,171 INFO L474 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-09-13 08:44:16,172 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 08:44:16,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 08:44:16,172 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-09-13 08:44:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-13 08:44:16,173 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 08:44:16,173 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 08:44:16,173 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-13 08:44:16,173 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-13 08:44:16,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 08:44:16,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2020883031, now seen corresponding path program 1 times [2024-09-13 08:44:16,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 08:44:16,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221326817] [2024-09-13 08:44:16,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 08:44:16,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 08:44:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 08:44:16,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-13 08:44:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 08:44:16,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 08:44:16,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 08:44:16,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221326817] [2024-09-13 08:44:16,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221326817] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 08:44:16,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 08:44:16,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-13 08:44:16,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973333549] [2024-09-13 08:44:16,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 08:44:16,281 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-13 08:44:16,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 08:44:16,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-13 08:44:16,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-13 08:44:16,286 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 08:44:16,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 08:44:16,344 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2024-09-13 08:44:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-13 08:44:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-09-13 08:44:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 08:44:16,345 INFO L225 Difference]: With dead ends: 15 [2024-09-13 08:44:16,345 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 08:44:16,345 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-09-13 08:44:16,346 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 08:44:16,347 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 13 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 08:44:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 08:44:16,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 08:44:16,348 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) [2024-09-13 08:44:16,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 08:44:16,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-09-13 08:44:16,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 08:44:16,348 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 08:44:16,348 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-13 08:44:16,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 08:44:16,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 08:44:16,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 08:44:16,351 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-09-13 08:44:16,352 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-09-13 08:44:16,352 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-09-13 08:44:16,352 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-13 08:44:16,355 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-09-13 08:44:16,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-13 08:44:16,439 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 08:44:16,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 08:44:16 BoogieIcfgContainer [2024-09-13 08:44:16,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 08:44:16,459 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-13 08:44:16,459 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-13 08:44:16,459 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-13 08:44:16,460 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 08:44:15" (3/4) ... [2024-09-13 08:44:16,461 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-13 08:44:16,464 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-13 08:44:16,464 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-13 08:44:16,468 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-09-13 08:44:16,469 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-09-13 08:44:16,469 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-09-13 08:44:16,469 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-13 08:44:16,491 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-13 08:44:16,491 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-13 08:44:16,491 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-13 08:44:16,561 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-13 08:44:16,561 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-13 08:44:16,561 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-13 08:44:16,562 INFO L158 Benchmark]: Toolchain (without parser) took 1899.23ms. Allocated memory is still 184.5MB. Free memory was 114.5MB in the beginning and 72.0MB in the end (delta: 42.5MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2024-09-13 08:44:16,562 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 08:44:16,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.15ms. Allocated memory is still 184.5MB. Free memory was 114.3MB in the beginning and 102.2MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-13 08:44:16,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.43ms. Allocated memory is still 184.5MB. Free memory was 102.2MB in the beginning and 101.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 08:44:16,562 INFO L158 Benchmark]: Boogie Preprocessor took 36.90ms. Allocated memory is still 184.5MB. Free memory was 101.0MB in the beginning and 99.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 08:44:16,563 INFO L158 Benchmark]: RCFGBuilder took 328.96ms. Allocated memory is still 184.5MB. Free memory was 99.4MB in the beginning and 147.7MB in the end (delta: -48.3MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-09-13 08:44:16,563 INFO L158 Benchmark]: TraceAbstraction took 1193.95ms. Allocated memory is still 184.5MB. Free memory was 147.7MB in the beginning and 76.4MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2024-09-13 08:44:16,563 INFO L158 Benchmark]: Witness Printer took 102.27ms. Allocated memory is still 184.5MB. Free memory was 76.4MB in the beginning and 72.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 08:44:16,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.15ms. Allocated memory is still 184.5MB. Free memory was 114.3MB in the beginning and 102.2MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.43ms. Allocated memory is still 184.5MB. Free memory was 102.2MB in the beginning and 101.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.90ms. Allocated memory is still 184.5MB. Free memory was 101.0MB in the beginning and 99.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.96ms. Allocated memory is still 184.5MB. Free memory was 99.4MB in the beginning and 147.7MB in the end (delta: -48.3MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1193.95ms. Allocated memory is still 184.5MB. Free memory was 147.7MB in the beginning and 76.4MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Witness Printer took 102.27ms. Allocated memory is still 184.5MB. Free memory was 76.4MB in the beginning and 72.0MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 48]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 64]: 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 3 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 11 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 3 specifications checked. All of them hold - InvariantResult [Line: 55]: Location Invariant Derived location invariant: (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) - InvariantResult [Line: 39]: Location Invariant Derived location invariant: (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) - InvariantResult [Line: 23]: Location Invariant Derived location invariant: ((\old(__return_100) == __return_100) && (0 <= main__i)) RESULT: Ultimate proved your program to be correct! [2024-09-13 08:44:16,590 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/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