This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:31:41,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:31:41,565 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 13:31:41,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:31:41,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:31:41,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:31:41,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:31:41,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:31:41,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:31:41,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:31:41,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:31:41,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:31:41,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:31:41,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:31:41,605 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:31:41,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:31:41,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:31:41,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:31:41,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:31:41,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:31:41,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:31:41,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:31:41,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:31:41,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:31:41,613 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:31:41,614 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:31:41,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:31:41,615 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:31:41,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:31:41,616 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:31:41,616 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:31:41,616 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:31:41,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:31:41,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:31:41,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:31:41,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:31:41,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:31:41,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:31:41,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:31:41,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:31:41,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:31:41,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:31:41,620 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:31:41,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:31:41,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:31:41,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:31:41,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:31:41,887 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:31:41,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2024-09-20 13:31:43,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:31:43,509 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:31:43,510 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2024-09-20 13:31:43,516 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/0804b47be/aeae1b2dae7847f0b8bf9b96ca77dcc4/FLAG2090fc3d7 [2024-09-20 13:31:43,528 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/0804b47be/aeae1b2dae7847f0b8bf9b96ca77dcc4 [2024-09-20 13:31:43,530 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:31:43,531 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:31:43,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+lhb-reducer.yml/witness-2.1.yml [2024-09-20 13:31:43,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:31:43,576 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-20 13:31:43,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:31:43,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:31:43,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:31:43,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:43" (1/2) ... [2024-09-20 13:31:43,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dca9e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43, skipping insertion in model container [2024-09-20 13:31:43,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:43" (1/2) ... [2024-09-20 13:31:43,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e66f568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43, skipping insertion in model container [2024-09-20 13:31:43,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:31:43" (2/2) ... [2024-09-20 13:31:43,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dca9e0e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43, skipping insertion in model container [2024-09-20 13:31:43,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:31:43" (2/2) ... [2024-09-20 13:31:43,595 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:31:43,596 INFO L1541 ArrayList]: Location invariant before [L25-L145] ((((2 * 0) + main__x) % 3) < 1) [2024-09-20 13:31:43,596 INFO L1541 ArrayList]: Location invariant before [L26-L114] (((((2 * 0) + main__x) % 3) < 1)) && (((((2 * 0) + main__x) % 3) < 1)) [2024-09-20 13:31:43,616 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:31:43,787 WARN L248 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-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] [2024-09-20 13:31:43,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:31:43,805 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:31:43,821 WARN L248 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-industry-pattern/mod3.c.v+lhb-reducer.c[2265,2278] Start Parsing Local Start Parsing Local [2024-09-20 13:31:43,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:31:43,864 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:31:43,866 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43 WrapperNode [2024-09-20 13:31:43,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:31:43,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 13:31:43,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 13:31:43,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 13:31:43,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,901 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 126 [2024-09-20 13:31:43,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 13:31:43,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:31:43,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:31:43,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:31:43,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,919 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,940 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]. [2024-09-20 13:31:43,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:31:43,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:31:43,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:31:43,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:31:43,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (1/1) ... [2024-09-20 13:31:43,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:31:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:31:43,998 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) [2024-09-20 13:31:44,004 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 [2024-09-20 13:31:44,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:31:44,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:31:44,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:31:44,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:31:44,105 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:31:44,107 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:31:44,295 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-09-20 13:31:44,296 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:31:44,324 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:31:44,325 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:31:44,325 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:44 BoogieIcfgContainer [2024-09-20 13:31:44,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:31:44,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 13:31:44,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 13:31:44,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 13:31:44,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:43" (1/4) ... [2024-09-20 13:31:44,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88a4205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:44, skipping insertion in model container [2024-09-20 13:31:44,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:31:43" (2/4) ... [2024-09-20 13:31:44,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88a4205 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:31:44, skipping insertion in model container [2024-09-20 13:31:44,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:43" (3/4) ... [2024-09-20 13:31:44,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88a4205 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:31:44, skipping insertion in model container [2024-09-20 13:31:44,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:44" (4/4) ... [2024-09-20 13:31:44,335 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2024-09-20 13:31:44,351 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 13:31:44,351 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-20 13:31:44,393 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 13:31:44,398 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;@89ce44e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 13:31:44,398 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-20 13:31:44,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 25 states have internal predecessors, (35), 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) [2024-09-20 13:31:44,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-09-20 13:31:44,409 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:31:44,409 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-09-20 13:31:44,410 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 13:31:44,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:31:44,416 INFO L85 PathProgramCache]: Analyzing trace with hash 3251362, now seen corresponding path program 1 times [2024-09-20 13:31:44,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:31:44,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054709671] [2024-09-20 13:31:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:31:44,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:31:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-20 13:31:44,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-20 13:31:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-20 13:31:44,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-20 13:31:44,553 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-20 13:31:44,554 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-20 13:31:44,556 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-20 13:31:44,556 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-09-20 13:31:44,557 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 13:31:44,560 INFO L408 BasicCegarLoop]: Path program histogram: [1] [2024-09-20 13:31:44,576 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-20 13:31:44,578 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-20 13:31:44,578 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-20 13:31:44,578 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:44 BoogieIcfgContainer [2024-09-20 13:31:44,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-20 13:31:44,579 INFO L158 Benchmark]: Toolchain (without parser) took 1003.44ms. Allocated memory is still 163.6MB. Free memory was 130.6MB in the beginning and 83.0MB in the end (delta: 47.6MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-09-20 13:31:44,579 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 163.6MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:31:44,580 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 132.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:31:44,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.28ms. Allocated memory is still 163.6MB. Free memory was 130.6MB in the beginning and 115.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:31:44,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.50ms. Allocated memory is still 163.6MB. Free memory was 115.9MB in the beginning and 114.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:31:44,581 INFO L158 Benchmark]: Boogie Preprocessor took 59.40ms. Allocated memory is still 163.6MB. Free memory was 114.6MB in the beginning and 112.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:31:44,581 INFO L158 Benchmark]: RCFGBuilder took 362.65ms. Allocated memory is still 163.6MB. Free memory was 112.5MB in the beginning and 97.0MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-20 13:31:44,582 INFO L158 Benchmark]: TraceAbstraction took 251.32ms. Allocated memory is still 163.6MB. Free memory was 96.4MB in the beginning and 83.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:31:44,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 163.6MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 163.6MB. Free memory is still 132.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.28ms. Allocated memory is still 163.6MB. Free memory was 130.6MB in the beginning and 115.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.50ms. Allocated memory is still 163.6MB. Free memory was 115.9MB in the beginning and 114.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.40ms. Allocated memory is still 163.6MB. Free memory was 114.6MB in the beginning and 112.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.65ms. Allocated memory is still 163.6MB. Free memory was 112.5MB in the beginning and 97.0MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 251.32ms. Allocated memory is still 163.6MB. Free memory was 96.4MB in the beginning and 83.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. 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: 25]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L1] int __return_main; [L8] int __tmp_112_0; [L9] int __tmp_94_0; [L10] int __tmp_93_0; [L11] int __tmp_88_0; [L12] int __tmp_88_1; [L13] int __tmp_91_0; [L14] int __tmp_91_1; [L15] int __return_121; [L18] unsigned int main__x = __VERIFIER_nondet_int(); [L19] unsigned int main__y = 1; VAL [__return_121=0, __return_main=0, __tmp_112_0=0, __tmp_88_0=0, __tmp_88_1=0, __tmp_91_0=0, __tmp_91_1=0, __tmp_93_0=0, __tmp_94_0=0, main__x=1] [L21] int main____CPAchecker_TMP_0; [L22] main____CPAchecker_TMP_0 = __VERIFIER_nondet_int() [L23] COND TRUE !(main____CPAchecker_TMP_0 == 0) VAL [__return_121=0, __return_main=0, __tmp_112_0=0, __tmp_88_0=0, __tmp_88_1=0, __tmp_91_0=0, __tmp_91_1=0, __tmp_93_0=0, __tmp_94_0=0, main____CPAchecker_TMP_0=1, main__x=1] [L25] //@ assert ((((2 * 0) + main__x) % 3) < 1); VAL [__return_121=0, __return_main=0, __tmp_112_0=0, __tmp_88_0=0, __tmp_88_1=0, __tmp_91_0=0, __tmp_91_1=0, __tmp_93_0=0, __tmp_94_0=0, main____CPAchecker_TMP_0=1] - UnprovableResult [Line: 26]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 99]: 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, 26 locations, 3 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=26occurred 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, 4 NumberOfCodeBlocks, 4 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! [2024-09-20 13:31:44,608 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...