This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m [2024-09-15 20:11:18,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:11:18,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 20:11:18,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:11:18,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:11:18,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:11:18,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:11:18,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:11:18,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:11:18,425 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:11:18,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:11:18,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:11:18,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:11:18,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:11:18,427 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:11:18,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:11:18,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:11:18,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:11:18,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:11:18,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:11:18,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:11:18,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:11:18,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:11:18,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:11:18,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:11:18,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:11:18,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:11:18,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:11:18,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:11:18,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:11:18,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:11:18,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:11:18,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:11:18,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:11:18,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:11:18,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:11:18,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:11:18,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:11:18,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:11:18,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:11:18,443 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:11:18,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:11:18,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:11:18,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:11:18,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:11:18,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:11:18,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:11:18,784 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:11:18,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2024-09-15 20:11:20,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:11:20,519 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:11:20,520 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2024-09-15 20:11:20,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/31401b815/4e57dc8aa1be493c9fdb7ba93ea26b51/FLAG09619e7e0 [2024-09-15 20:11:20,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/31401b815/4e57dc8aa1be493c9fdb7ba93ea26b51 [2024-09-15 20:11:20,541 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:11:20,541 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:11:20,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+lhb-reducer.yml/witness-2.1.yml [2024-09-15 20:11:20,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:11:20,588 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-15 20:11:20,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:11:20,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:11:20,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:11:20,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:11:20" (1/2) ... [2024-09-15 20:11:20,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ecde05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:20, skipping insertion in model container [2024-09-15 20:11:20,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:11:20" (1/2) ... [2024-09-15 20:11:20,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16bcca31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:20, skipping insertion in model container [2024-09-15 20:11:20,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:11:20" (2/2) ... [2024-09-15 20:11:20,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ecde05c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:11:20, skipping insertion in model container [2024-09-15 20:11:20,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:11:20" (2/2) ... [2024-09-15 20:11:20,623 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:11:20,624 INFO L1541 ArrayList]: Location invariant before [L26-L114] (((((2 * (main__x / 4294967296)) + main__x) % 3) < 1)) && (((((2 * (main__x / 4294967296)) + main__x) % 3) < 1)) [2024-09-15 20:11:20,624 INFO L1541 ArrayList]: Location invariant before [L25-L145] ((((2 * (main__x / 4294967296)) + main__x) % 3) < 1) [2024-09-15 20:11:20,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:11:20,835 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] [2024-09-15 20:11:20,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:11:20,862 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 20:11:20,889 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 [2024-09-15 20:11:20,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:11:20,950 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:11:20,951 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:11:20 WrapperNode [2024-09-15 20:11:20,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:11:20,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 20:11:20,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 20:11:20,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 20:11:20,961 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:20,970 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,006 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 126 [2024-09-15 20:11:21,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 20:11:21,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:11:21,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:11:21,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:11:21,021 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,022 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,026 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,043 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]. [2024-09-15 20:11:21,044 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,044 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,052 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,055 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,059 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,060 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:11:21,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:11:21,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:11:21,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:11:21,070 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 15.09 08:11:20" (1/1) ... [2024-09-15 20:11:21,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:11:21,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:11:21,110 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) [2024-09-15 20:11:21,117 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 [2024-09-15 20:11:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:11:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:11:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:11:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 20:11:21,244 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:11:21,246 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:11:21,563 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-09-15 20:11:21,563 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:11:21,610 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:11:21,610 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 20:11:21,611 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:11:21 BoogieIcfgContainer [2024-09-15 20:11:21,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:11:21,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 20:11:21,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 20:11:21,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 20:11:21,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:11:20" (1/4) ... [2024-09-15 20:11:21,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5135d1c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:11:21, skipping insertion in model container [2024-09-15 20:11:21,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:11:20" (2/4) ... [2024-09-15 20:11:21,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5135d1c9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:11:21, skipping insertion in model container [2024-09-15 20:11:21,620 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 15.09 08:11:20" (3/4) ... [2024-09-15 20:11:21,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5135d1c9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:11:21, skipping insertion in model container [2024-09-15 20:11:21,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:11:21" (4/4) ... [2024-09-15 20:11:21,621 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2024-09-15 20:11:21,638 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 20:11:21,639 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-15 20:11:21,688 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 20:11:21,695 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;@200ccec8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 20:11:21,696 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-15 20:11:21,700 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) [2024-09-15 20:11:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-09-15 20:11:21,707 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:11:21,708 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-09-15 20:11:21,708 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:11:21,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:11:21,716 INFO L85 PathProgramCache]: Analyzing trace with hash 3251362, now seen corresponding path program 1 times [2024-09-15 20:11:21,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:11:21,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431241829] [2024-09-15 20:11:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:11:21,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:11:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-15 20:11:21,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-15 20:11:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-15 20:11:21,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-15 20:11:21,903 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-15 20:11:21,904 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 3 remaining) [2024-09-15 20:11:21,907 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 3 remaining) [2024-09-15 20:11:21,907 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-09-15 20:11:21,908 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-15 20:11:21,912 INFO L408 BasicCegarLoop]: Path program histogram: [1] [2024-09-15 20:11:21,932 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-15 20:11:21,934 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-15 20:11:21,934 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-15 20:11:21,936 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:11:21 BoogieIcfgContainer [2024-09-15 20:11:21,936 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-15 20:11:21,937 INFO L158 Benchmark]: Toolchain (without parser) took 1349.84ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 24.4MB in the beginning and 50.7MB in the end (delta: -26.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:11:21,938 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:11:21,938 INFO L158 Benchmark]: Witness Parser took 0.07ms. Allocated memory is still 56.6MB. Free memory is still 26.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:11:21,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.30ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 24.2MB in the beginning and 45.3MB in the end (delta: -21.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-09-15 20:11:21,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.56ms. Allocated memory is still 77.6MB. Free memory was 45.3MB in the beginning and 42.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:11:21,939 INFO L158 Benchmark]: Boogie Preprocessor took 60.40ms. Allocated memory is still 77.6MB. Free memory was 42.7MB in the beginning and 40.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:11:21,940 INFO L158 Benchmark]: RCFGBuilder took 542.46ms. Allocated memory is still 77.6MB. Free memory was 40.5MB in the beginning and 41.6MB in the end (delta: -1.1MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-09-15 20:11:21,941 INFO L158 Benchmark]: TraceAbstraction took 323.00ms. Allocated memory is still 77.6MB. Free memory was 40.9MB in the beginning and 50.7MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:11:21,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 56.6MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.07ms. Allocated memory is still 56.6MB. Free memory is still 26.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.30ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 24.2MB in the beginning and 45.3MB in the end (delta: -21.0MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.56ms. Allocated memory is still 77.6MB. Free memory was 45.3MB in the beginning and 42.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.40ms. Allocated memory is still 77.6MB. Free memory was 42.7MB in the beginning and 40.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.46ms. Allocated memory is still 77.6MB. Free memory was 40.5MB in the beginning and 41.6MB in the end (delta: -1.1MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 323.00ms. Allocated memory is still 77.6MB. Free memory was 40.9MB in the beginning and 50.7MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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=2] [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=2] [L25] //@ assert ((((2 * (main__x / 4294967296)) + 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, 0.1s 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! [2024-09-15 20:11:21,977 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...