./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound20.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound20.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c04ff4ba89c203752c2536888693b0490a6d8d55183f07b2fd5c1dc6af9f21c --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 12:06:55,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:06:55,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-21 12:06:55,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:06:55,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:06:55,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:06:55,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:06:55,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:06:55,255 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:06:55,255 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:06:55,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:06:55,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:06:55,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:06:55,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:06:55,258 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:06:55,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:06:55,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:06:55,261 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:06:55,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:06:55,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:06:55,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:06:55,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:06:55,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:06:55,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:06:55,266 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:06:55,266 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:06:55,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:06:55,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:06:55,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:06:55,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:06:55,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:06:55,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:06:55,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:06:55,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:06:55,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:06:55,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:06:55,269 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:06:55,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:06:55,269 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:06:55,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:06:55,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:06:55,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:06:55,271 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c04ff4ba89c203752c2536888693b0490a6d8d55183f07b2fd5c1dc6af9f21c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-21 12:06:55,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:06:55,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:06:55,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:06:55,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:06:55,567 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:06:55,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound20.c [2024-09-21 12:06:57,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:06:57,257 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:06:57,257 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound20.c [2024-09-21 12:06:57,271 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/639f30226/2ffe667e8e6c4cbaa2290c666b4ef85f/FLAGa6acf80b0 [2024-09-21 12:06:57,287 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/639f30226/2ffe667e8e6c4cbaa2290c666b4ef85f [2024-09-21 12:06:57,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:06:57,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-21 12:06:57,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:06:57,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:06:57,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:06:57,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41994910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57, skipping insertion in model container [2024-09-21 12:06:57,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:06:57,534 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/nla-digbench-scaling/geo3-ll_valuebound20.c[524,537] [2024-09-21 12:06:57,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:06:57,563 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:06:57,575 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/nla-digbench-scaling/geo3-ll_valuebound20.c[524,537] [2024-09-21 12:06:57,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:06:57,599 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:06:57,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57 WrapperNode [2024-09-21 12:06:57,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:06:57,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-21 12:06:57,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-21 12:06:57,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-21 12:06:57,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,619 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-21 12:06:57,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-21 12:06:57,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:06:57,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:06:57,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:06:57,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,642 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]. [2024-09-21 12:06:57,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:06:57,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:06:57,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:06:57,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:06:57,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (1/1) ... [2024-09-21 12:06:57,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:06:57,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:06:57,685 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) [2024-09-21 12:06:57,686 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 [2024-09-21 12:06:57,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:06:57,732 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:06:57,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:06:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:06:57,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:06:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:06:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:06:57,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:06:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:06:57,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:06:57,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:06:57,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 12:06:57,787 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:06:57,789 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:06:57,929 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-21 12:06:57,929 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:06:57,951 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:06:57,951 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 12:06:57,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:06:57 BoogieIcfgContainer [2024-09-21 12:06:57,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:06:57,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-21 12:06:57,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-21 12:06:57,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-21 12:06:57,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:06:57" (1/3) ... [2024-09-21 12:06:57,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154f7dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:06:57, skipping insertion in model container [2024-09-21 12:06:57,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:06:57" (2/3) ... [2024-09-21 12:06:57,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154f7dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:06:57, skipping insertion in model container [2024-09-21 12:06:57,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:06:57" (3/3) ... [2024-09-21 12:06:57,963 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound20.c [2024-09-21 12:06:57,979 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-21 12:06:57,979 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-21 12:06:58,033 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-21 12:06:58,042 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e0323a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-21 12:06:58,043 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-21 12:06:58,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-21 12:06:58,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-21 12:06:58,058 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:06:58,058 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:06:58,059 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:06:58,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:06:58,066 INFO L85 PathProgramCache]: Analyzing trace with hash -839968477, now seen corresponding path program 1 times [2024-09-21 12:06:58,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:06:58,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499145009] [2024-09-21 12:06:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:06:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:06:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:06:58,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:06:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:06:58,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-21 12:06:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:06:58,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-21 12:06:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:06:58,266 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-21 12:06:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:06:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-21 12:06:58,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:06:58,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499145009] [2024-09-21 12:06:58,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499145009] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-21 12:06:58,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-21 12:06:58,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-21 12:06:58,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681311390] [2024-09-21 12:06:58,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-21 12:06:58,280 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-21 12:06:58,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:06:58,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-21 12:06:58,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-21 12:06:58,303 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-21 12:06:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:06:58,340 INFO L93 Difference]: Finished difference Result 52 states and 70 transitions. [2024-09-21 12:06:58,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-21 12:06:58,343 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2024-09-21 12:06:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:06:58,349 INFO L225 Difference]: With dead ends: 52 [2024-09-21 12:06:58,349 INFO L226 Difference]: Without dead ends: 25 [2024-09-21 12:06:58,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-21 12:06:58,354 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-21 12:06:58,355 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-21 12:06:58,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-09-21 12:06:58,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-09-21 12:06:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-21 12:06:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-09-21 12:06:58,386 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 28 [2024-09-21 12:06:58,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:06:58,386 INFO L474 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-09-21 12:06:58,387 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-21 12:06:58,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:06:58,387 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-09-21 12:06:58,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-21 12:06:58,389 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:06:58,389 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:06:58,389 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-21 12:06:58,390 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:06:58,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:06:58,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1024519709, now seen corresponding path program 1 times [2024-09-21 12:06:58,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:06:58,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529898350] [2024-09-21 12:06:58,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:06:58,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:06:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-21 12:06:58,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303704751] [2024-09-21 12:06:58,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:06:58,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:06:58,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:06:58,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-21 12:06:58,454 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-21 12:06:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:06:58,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-21 12:06:58,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:06:58,666 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-21 12:06:58,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-21 12:06:58,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:06:58,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529898350] [2024-09-21 12:06:58,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-21 12:06:58,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303704751] [2024-09-21 12:06:58,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303704751] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-21 12:06:58,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-21 12:06:58,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-21 12:06:58,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312888581] [2024-09-21 12:06:58,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-21 12:06:58,671 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-21 12:06:58,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:06:58,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-21 12:06:58,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-21 12:06:58,674 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-21 12:06:58,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:06:58,730 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2024-09-21 12:06:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-21 12:06:58,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-09-21 12:06:58,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:06:58,733 INFO L225 Difference]: With dead ends: 35 [2024-09-21 12:06:58,733 INFO L226 Difference]: Without dead ends: 32 [2024-09-21 12:06:58,734 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-21 12:06:58,736 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-21 12:06:58,737 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 88 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-21 12:06:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-21 12:06:58,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-09-21 12:06:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-21 12:06:58,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2024-09-21 12:06:58,751 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 28 [2024-09-21 12:06:58,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:06:58,753 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2024-09-21 12:06:58,753 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-21 12:06:58,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:06:58,754 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2024-09-21 12:06:58,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-21 12:06:58,755 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:06:58,756 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:06:58,768 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-21 12:06:58,956 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:06:58,957 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:06:58,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:06:58,957 INFO L85 PathProgramCache]: Analyzing trace with hash 535256771, now seen corresponding path program 1 times [2024-09-21 12:06:58,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:06:58,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089554871] [2024-09-21 12:06:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:06:58,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:06:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-21 12:06:59,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672283427] [2024-09-21 12:06:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:06:59,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:06:59,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:06:59,020 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-21 12:06:59,022 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-21 12:06:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:06:59,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-21 12:06:59,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:06:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-21 12:06:59,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:07:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-21 12:07:04,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:07:04,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089554871] [2024-09-21 12:07:04,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-21 12:07:04,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672283427] [2024-09-21 12:07:04,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672283427] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:07:04,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-21 12:07:04,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-09-21 12:07:04,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763532364] [2024-09-21 12:07:04,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-21 12:07:04,012 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-21 12:07:04,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:07:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-21 12:07:04,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2024-09-21 12:07:04,017 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-21 12:07:12,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-21 12:07:16,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-21 12:07:20,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-21 12:07:24,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-21 12:07:28,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-21 12:07:32,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-21 12:07:32,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:07:32,246 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2024-09-21 12:07:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-21 12:07:32,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 35 [2024-09-21 12:07:32,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:07:32,248 INFO L225 Difference]: With dead ends: 50 [2024-09-21 12:07:32,248 INFO L226 Difference]: Without dead ends: 45 [2024-09-21 12:07:32,249 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-09-21 12:07:32,250 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2024-09-21 12:07:32,255 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 158 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 24.4s Time] [2024-09-21 12:07:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-09-21 12:07:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-09-21 12:07:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-21 12:07:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2024-09-21 12:07:32,280 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 35 [2024-09-21 12:07:32,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:07:32,282 INFO L474 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2024-09-21 12:07:32,282 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-21 12:07:32,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:07:32,283 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2024-09-21 12:07:32,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-21 12:07:32,285 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:07:32,286 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:07:32,304 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-21 12:07:32,486 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:07:32,487 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:07:32,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:07:32,488 INFO L85 PathProgramCache]: Analyzing trace with hash -549742109, now seen corresponding path program 2 times [2024-09-21 12:07:32,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:07:32,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425406794] [2024-09-21 12:07:32,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:07:32,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:07:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-21 12:07:32,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172376664] [2024-09-21 12:07:32,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-21 12:07:32,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:07:32,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:07:32,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-21 12:07:32,584 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-21 12:07:32,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-21 12:07:32,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-21 12:07:32,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-21 12:07:32,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:07:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 27 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-21 12:07:33,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:07:54,495 WARN L876 $PredicateComparison]: unable to prove that (or (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0)) 18446744073709551616) 0) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0) (* 18446744073709551615 c_main_~x~0) c_main_~a~0) 18446744073709551616) 0))) is different from true [2024-09-21 12:08:09,395 WARN L293 SmtUtils]: Spent 6.55s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-21 12:08:17,417 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-21 12:08:21,430 WARN L876 $PredicateComparison]: unable to prove that (or (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0 c_main_~z~0)) 18446744073709551616) 0) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0)) 18446744073709551616) 0))) is different from true [2024-09-21 12:08:29,628 WARN L293 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-21 12:08:54,296 WARN L876 $PredicateComparison]: unable to prove that (or (not (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0 c_main_~z~0)) 18446744073709551616) 0)) (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0 c_main_~z~0 c_main_~z~0)) 18446744073709551616) 0)) is different from true [2024-09-21 12:09:04,359 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-21 12:09:20,544 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-21 12:09:28,606 WARN L876 $PredicateComparison]: unable to prove that (or (= (mod (+ (* c_main_~a~0 c_main_~z~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0 c_main_~z~0)) 18446744073709551616) 0) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0 c_main_~z~0 c_main_~z~0)) 18446744073709551616) 0))) is different from true [2024-09-21 12:09:46,161 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-21 12:09:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 26 not checked. [2024-09-21 12:09:46,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:09:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425406794] [2024-09-21 12:09:46,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-21 12:09:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172376664] [2024-09-21 12:09:46,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172376664] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:09:46,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-21 12:09:46,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2024-09-21 12:09:46,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313040417] [2024-09-21 12:09:46,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-21 12:09:46,222 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-21 12:09:46,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:09:46,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-21 12:09:46,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=284, Unknown=5, NotChecked=148, Total=506 [2024-09-21 12:09:46,227 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 23 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 21 states have internal predecessors, (45), 13 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2024-09-21 12:09:56,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-21 12:10:03,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:10:03,262 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2024-09-21 12:10:03,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-21 12:10:03,262 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 21 states have internal predecessors, (45), 13 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) Word has length 56 [2024-09-21 12:10:03,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:10:03,263 INFO L225 Difference]: With dead ends: 50 [2024-09-21 12:10:03,263 INFO L226 Difference]: Without dead ends: 0 [2024-09-21 12:10:03,264 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 90 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 37.2s TimeCoverageRelationStatistics Valid=100, Invalid=372, Unknown=6, NotChecked=172, Total=650 [2024-09-21 12:10:03,265 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 185 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-09-21 12:10:03,265 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 226 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 207 Invalid, 1 Unknown, 185 Unchecked, 4.4s Time] [2024-09-21 12:10:03,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-21 12:10:03,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-21 12:10:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-21 12:10:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-21 12:10:03,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2024-09-21 12:10:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:10:03,268 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-21 12:10:03,268 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 21 states have internal predecessors, (45), 13 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2024-09-21 12:10:03,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:10:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-21 12:10:03,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-21 12:10:03,271 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-21 12:10:03,278 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-21 12:10:03,472 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:10:03,475 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-09-21 12:10:03,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-21 12:10:10,952 WARN L293 SmtUtils]: Spent 7.42s on a formula simplification. DAG size of input: 55 DAG size of output: 20 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-21 12:10:18,977 WARN L293 SmtUtils]: Spent 7.99s on a formula simplification. DAG size of input: 55 DAG size of output: 20 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-21 12:10:38,052 WARN L293 SmtUtils]: Spent 19.07s on a formula simplification. DAG size of input: 56 DAG size of output: 20 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-21 12:10:38,289 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-21 12:10:38,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:10:38 BoogieIcfgContainer [2024-09-21 12:10:38,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-21 12:10:38,311 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-21 12:10:38,311 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-21 12:10:38,311 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-21 12:10:38,312 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:06:57" (3/4) ... [2024-09-21 12:10:38,314 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-21 12:10:38,365 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-21 12:10:38,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-21 12:10:38,365 INFO L158 Benchmark]: Toolchain (without parser) took 221074.37ms. Allocated memory was 165.7MB in the beginning and 230.7MB in the end (delta: 65.0MB). Free memory was 94.2MB in the beginning and 176.8MB in the end (delta: -82.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:10:38,366 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:10:38,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.79ms. Allocated memory is still 165.7MB. Free memory was 94.1MB in the beginning and 131.6MB in the end (delta: -37.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-09-21 12:10:38,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.61ms. Allocated memory is still 165.7MB. Free memory was 131.6MB in the beginning and 130.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:10:38,367 INFO L158 Benchmark]: Boogie Preprocessor took 31.42ms. Allocated memory is still 165.7MB. Free memory was 130.5MB in the beginning and 129.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:10:38,367 INFO L158 Benchmark]: RCFGBuilder took 298.15ms. Allocated memory is still 165.7MB. Free memory was 129.5MB in the beginning and 115.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 12:10:38,367 INFO L158 Benchmark]: TraceAbstraction took 220355.09ms. Allocated memory was 165.7MB in the beginning and 230.7MB in the end (delta: 65.0MB). Free memory was 114.8MB in the beginning and 178.9MB in the end (delta: -64.1MB). Peak memory consumption was 116.6MB. Max. memory is 16.1GB. [2024-09-21 12:10:38,368 INFO L158 Benchmark]: Witness Printer took 54.30ms. Allocated memory is still 230.7MB. Free memory was 178.9MB in the beginning and 176.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:10:38,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.79ms. Allocated memory is still 165.7MB. Free memory was 94.1MB in the beginning and 131.6MB in the end (delta: -37.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.61ms. Allocated memory is still 165.7MB. Free memory was 131.6MB in the beginning and 130.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.42ms. Allocated memory is still 165.7MB. Free memory was 130.5MB in the beginning and 129.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.15ms. Allocated memory is still 165.7MB. Free memory was 129.5MB in the beginning and 115.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 220355.09ms. Allocated memory was 165.7MB in the beginning and 230.7MB in the end (delta: 65.0MB). Free memory was 114.8MB in the beginning and 178.9MB in the end (delta: -64.1MB). Peak memory consumption was 116.6MB. Max. memory is 16.1GB. * Witness Printer took 54.30ms. Allocated memory is still 230.7MB. Free memory was 178.9MB in the beginning and 176.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 185.5s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 45.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 28.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 502 SdHoareTripleChecker+Invalid, 28.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 185 IncrementalHoareTripleChecker+Unchecked, 400 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 102 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 188 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 45.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 138.4s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 1601 SizeOfPredicates, 4 NumberOfNonLiveVariables, 322 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 138/196 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((a <= 20) && (z <= 20)) && (0 <= a)) && (((((((__int128) z * x) + (((unsigned __int128) 18446744073709551615U * y) * az)) + a) + ((unsigned __int128) 18446744073709551615U * x)) % ((unsigned __int128) 1 << 64)) == 0)) && (0 <= z)) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond) RESULT: Ultimate proved your program to be correct! [2024-09-21 12:10:38,465 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE