This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:11:54,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:11:54,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 05:11:54,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:11:54,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:11:54,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:11:54,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:11:54,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:11:54,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:11:54,936 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:11:54,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:11:54,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:11:54,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:11:54,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:11:54,938 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:11:54,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:11:54,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:11:54,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:11:54,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:11:54,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:11:54,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:11:54,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:11:54,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:11:54,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:11:54,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:11:54,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:11:54,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:11:54,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:11:54,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:11:54,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:11:54,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:11:54,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:11:54,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:11:54,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:11:54,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:11:54,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:11:54,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:11:54,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:11:54,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:11:54,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:11:54,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:11:54,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:11:54,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:11:55,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:11:55,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:11:55,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:11:55,188 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:11:55,188 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:11:55,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/heavy-2.yml/witness-2.1.yml [2024-09-13 05:11:55,255 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:11:55,256 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:11:55,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops/heavy-2.c [2024-09-13 05:11:56,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:11:56,798 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:11:56,799 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/heavy-2.c [2024-09-13 05:11:56,804 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/f1c2aa0bc/964b7ea5ff8c4c6f8633af4871d7c428/FLAGe6423ea0f [2024-09-13 05:11:56,814 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/f1c2aa0bc/964b7ea5ff8c4c6f8633af4871d7c428 [2024-09-13 05:11:56,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:11:56,815 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 05:11:56,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:11:56,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:11:56,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:11:56,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:11:55" (1/2) ... [2024-09-13 05:11:56,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f20ee83 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:11:56, skipping insertion in model container [2024-09-13 05:11:56,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:11:55" (1/2) ... [2024-09-13 05:11:56,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6abb47e0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:11:56, skipping insertion in model container [2024-09-13 05:11:56,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:11:56" (2/2) ... [2024-09-13 05:11:56,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f20ee83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:56, skipping insertion in model container [2024-09-13 05:11:56,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:11:56" (2/2) ... [2024-09-13 05:11:56,834 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:11:56,834 INFO L1541 ArrayList]: Loop invariant at [L12-L15] (a == 1) [2024-09-13 05:11:56,834 INFO L1541 ArrayList]: Loop invariant at [L13-L15] (a == 1) [2024-09-13 05:11:56,834 INFO L1541 ArrayList]: Loop invariant at [L14-L15] (a == 1) [2024-09-13 05:11:56,834 INFO L1541 ArrayList]: Location invariant before [L8-L23] 0 [2024-09-13 05:11:56,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:11:57,021 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/loops/heavy-2.c[600,613] [2024-09-13 05:11:57,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:11:57,053 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-13 05:11:57,084 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/loops/heavy-2.c[600,613] Start Parsing Local [2024-09-13 05:11:57,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:11:57,123 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:11:57,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57 WrapperNode [2024-09-13 05:11:57,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:11:57,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 05:11:57,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 05:11:57,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 05:11:57,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,153 INFO L138 Inliner]: procedures = 12, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-09-13 05:11:57,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 05:11:57,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:11:57,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:11:57,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:11:57,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,181 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-09-13 05:11:57,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:11:57,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:11:57,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:11:57,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:11:57,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (1/1) ... [2024-09-13 05:11:57,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:11:57,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:11:57,229 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 05:11:57,230 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 05:11:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 05:11:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-13 05:11:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:11:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:11:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:11:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 05:11:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-13 05:11:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 05:11:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-13 05:11:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-09-13 05:11:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-09-13 05:11:57,331 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:11:57,333 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:11:57,462 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-09-13 05:11:57,463 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:11:57,509 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:11:57,510 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-13 05:11:57,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:11:57 BoogieIcfgContainer [2024-09-13 05:11:57,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:11:57,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 05:11:57,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 05:11:57,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 05:11:57,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:11:55" (1/4) ... [2024-09-13 05:11:57,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fa3ca5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:11:57, skipping insertion in model container [2024-09-13 05:11:57,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 05:11:56" (2/4) ... [2024-09-13 05:11:57,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fa3ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:11:57, skipping insertion in model container [2024-09-13 05:11:57,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:11:57" (3/4) ... [2024-09-13 05:11:57,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fa3ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:11:57, skipping insertion in model container [2024-09-13 05:11:57,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:11:57" (4/4) ... [2024-09-13 05:11:57,526 INFO L112 eAbstractionObserver]: Analyzing ICFG heavy-2.c [2024-09-13 05:11:57,543 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 05:11:57,543 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-13 05:11:57,597 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 05:11:57,606 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=None, 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;@352528c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 05:11:57,606 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-13 05:11:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:11:57,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-09-13 05:11:57,618 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:11:57,619 INFO L216 NwaCegarLoop]: trace histogram [1, 1] [2024-09-13 05:11:57,619 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-13 05:11:57,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:11:57,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2916, now seen corresponding path program 1 times [2024-09-13 05:11:57,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:11:57,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088626900] [2024-09-13 05:11:57,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:11:57,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:11:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-13 05:11:57,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-13 05:11:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-13 05:11:57,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-13 05:11:57,769 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-13 05:11:57,771 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-09-13 05:11:57,772 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-09-13 05:11:57,773 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-09-13 05:11:57,773 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 5 remaining) [2024-09-13 05:11:57,774 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-09-13 05:11:57,775 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 05:11:57,778 INFO L408 BasicCegarLoop]: Path program histogram: [1] [2024-09-13 05:11:57,791 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 05:11:57,794 INFO L469 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-09-13 05:11:57,794 INFO L470 ceAbstractionStarter]: WitnessConsidered=4 [2024-09-13 05:11:57,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 05:11:57 BoogieIcfgContainer [2024-09-13 05:11:57,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 05:11:57,797 INFO L158 Benchmark]: Toolchain (without parser) took 981.29ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 69.0MB in the end (delta: 28.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2024-09-13 05:11:57,797 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:11:57,799 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:11:57,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.85ms. Allocated memory is still 167.8MB. Free memory was 96.8MB in the beginning and 100.4MB in the end (delta: -3.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-09-13 05:11:57,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.29ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 99.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:11:57,800 INFO L158 Benchmark]: Boogie Preprocessor took 42.47ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 97.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:11:57,801 INFO L158 Benchmark]: RCFGBuilder took 315.65ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 83.1MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-13 05:11:57,801 INFO L158 Benchmark]: TraceAbstraction took 280.18ms. Allocated memory is still 167.8MB. Free memory was 82.4MB in the beginning and 69.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 05:11:57,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.85ms. Allocated memory is still 167.8MB. Free memory was 96.8MB in the beginning and 100.4MB in the end (delta: -3.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.29ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 99.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.47ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 97.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 315.65ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 83.1MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 280.18ms. Allocated memory is still 167.8MB. Free memory was 82.4MB in the beginning and 69.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. 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 - CounterExampleResult [Line: 8]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L9] static char array[1024 * 1024] = { 1 }; [L9] static char array[1024 * 1024] = { 1 }; [L9] static char array[1024 * 1024] = { 1 }; [L8] //@ assert 0; VAL [array={4:0}] - UnprovableResult [Line: 12]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 13]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 14]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-09-13 05:11:57,834 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...