./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash 1ed4a8166e43af31025ed37886c26d8ffdcca7c92b59539857ec6cced7b52d7d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:17:57,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:17:57,399 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 17:17:57,404 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:17:57,405 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:17:57,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:17:57,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:17:57,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:17:57,438 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:17:57,442 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:17:57,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:17:57,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:17:57,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:17:57,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:17:57,444 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:17:57,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:17:57,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:17:57,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 17:17:57,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:17:57,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:17:57,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:17:57,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:17:57,448 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:17:57,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:17:57,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:17:57,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:17:57,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:17:57,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:17:57,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:17:57,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:17:57,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:17:57,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:17:57,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:17:57,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 17:17:57,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 17:17:57,454 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:17:57,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:17:57,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:17:57,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:17:57,455 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed4a8166e43af31025ed37886c26d8ffdcca7c92b59539857ec6cced7b52d7d [2024-11-18 17:17:57,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:17:57,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:17:57,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:17:57,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:17:57,754 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:17:57,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c [2024-11-18 17:17:59,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:17:59,441 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:17:59,442 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c [2024-11-18 17:17:59,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4495c3e/5bfea8a9d9f74693bc107fd28a2fdb31/FLAG6712b825c [2024-11-18 17:17:59,469 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4495c3e/5bfea8a9d9f74693bc107fd28a2fdb31 [2024-11-18 17:17:59,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:17:59,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:17:59,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:17:59,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:17:59,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:17:59,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:17:59,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f89d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59, skipping insertion in model container [2024-11-18 17:17:59,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:17:59,516 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:17:59,710 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c[1249,1262] [2024-11-18 17:17:59,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:17:59,830 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:17:59,842 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c[1249,1262] [2024-11-18 17:17:59,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:17:59,898 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:17:59,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59 WrapperNode [2024-11-18 17:17:59,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:17:59,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:17:59,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:17:59,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:17:59,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:17:59,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:17:59,997 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 416 [2024-11-18 17:17:59,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:17:59,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:17:59,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:17:59,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:18:00,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,081 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]. [2024-11-18 17:18:00,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:18:00,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:18:00,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:18:00,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:18:00,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (1/1) ... [2024-11-18 17:18:00,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:18:00,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:18:00,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 17:18:00,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 17:18:00,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:18:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 17:18:00,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:18:00,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:18:00,400 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:18:00,404 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:18:01,177 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-11-18 17:18:01,177 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:18:01,194 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:18:01,194 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:18:01,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:18:01 BoogieIcfgContainer [2024-11-18 17:18:01,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:18:01,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:18:01,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:18:01,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:18:01,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:17:59" (1/3) ... [2024-11-18 17:18:01,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad1c3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:18:01, skipping insertion in model container [2024-11-18 17:18:01,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:59" (2/3) ... [2024-11-18 17:18:01,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad1c3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:18:01, skipping insertion in model container [2024-11-18 17:18:01,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:18:01" (3/3) ... [2024-11-18 17:18:01,206 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.eq_sdp_v4.c [2024-11-18 17:18:01,224 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:18:01,225 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:18:01,299 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:18:01,306 INFO L333 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=LoopHeads, 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;@5094199a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:18:01,308 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:18:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 92 states have (on average 1.4891304347826086) internal successors, (137), 93 states have internal predecessors, (137), 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) [2024-11-18 17:18:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-18 17:18:01,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:18:01,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:18:01,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:18:01,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:18:01,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1364539026, now seen corresponding path program 1 times [2024-11-18 17:18:01,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:18:01,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242472639] [2024-11-18 17:18:01,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:18:01,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:18:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:18:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:18:02,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:18:02,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242472639] [2024-11-18 17:18:02,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242472639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:18:02,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:18:02,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:18:02,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266406305] [2024-11-18 17:18:02,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:18:02,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:18:02,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:18:02,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:18:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:18:02,148 INFO L87 Difference]: Start difference. First operand has 94 states, 92 states have (on average 1.4891304347826086) internal successors, (137), 93 states have internal predecessors, (137), 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) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 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) [2024-11-18 17:18:02,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:18:02,232 INFO L93 Difference]: Finished difference Result 139 states and 204 transitions. [2024-11-18 17:18:02,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:18:02,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 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) Word has length 35 [2024-11-18 17:18:02,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:18:02,245 INFO L225 Difference]: With dead ends: 139 [2024-11-18 17:18:02,245 INFO L226 Difference]: Without dead ends: 91 [2024-11-18 17:18:02,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:18:02,254 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 105 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:18:02,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 249 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:18:02,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-18 17:18:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-18 17:18:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.4555555555555555) internal successors, (131), 90 states have internal predecessors, (131), 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) [2024-11-18 17:18:02,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2024-11-18 17:18:02,295 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 35 [2024-11-18 17:18:02,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:18:02,298 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2024-11-18 17:18:02,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 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) [2024-11-18 17:18:02,298 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-11-18 17:18:02,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-18 17:18:02,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:18:02,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:18:02,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 17:18:02,300 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:18:02,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:18:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash -689406165, now seen corresponding path program 1 times [2024-11-18 17:18:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:18:02,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033823978] [2024-11-18 17:18:02,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:18:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:18:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:18:02,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:18:02,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:18:02,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033823978] [2024-11-18 17:18:02,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033823978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:18:02,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:18:02,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:18:02,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594273437] [2024-11-18 17:18:02,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:18:02,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:18:02,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:18:02,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:18:02,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:18:02,547 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-18 17:18:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:18:02,580 INFO L93 Difference]: Finished difference Result 95 states and 135 transitions. [2024-11-18 17:18:02,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:18:02,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) Word has length 37 [2024-11-18 17:18:02,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:18:02,582 INFO L225 Difference]: With dead ends: 95 [2024-11-18 17:18:02,582 INFO L226 Difference]: Without dead ends: 93 [2024-11-18 17:18:02,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:18:02,584 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:18:02,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:18:02,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-18 17:18:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-18 17:18:02,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 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) [2024-11-18 17:18:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-11-18 17:18:02,596 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 37 [2024-11-18 17:18:02,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:18:02,597 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-11-18 17:18:02,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-11-18 17:18:02,598 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-18 17:18:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-18 17:18:02,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:18:02,599 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:18:02,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 17:18:02,600 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:18:02,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:18:02,600 INFO L85 PathProgramCache]: Analyzing trace with hash 104940713, now seen corresponding path program 1 times [2024-11-18 17:18:02,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:18:02,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107160169] [2024-11-18 17:18:02,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:18:02,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:18:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 17:18:02,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 17:18:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 17:18:02,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 17:18:02,717 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 17:18:02,718 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 17:18:02,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 17:18:02,725 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-18 17:18:02,773 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 17:18:02,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:18:02 BoogieIcfgContainer [2024-11-18 17:18:02,780 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 17:18:02,782 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 17:18:02,782 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 17:18:02,782 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 17:18:02,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:18:01" (3/4) ... [2024-11-18 17:18:02,786 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 17:18:02,787 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 17:18:02,788 INFO L158 Benchmark]: Toolchain (without parser) took 3315.94ms. Allocated memory is still 184.5MB. Free memory was 114.9MB in the beginning and 57.1MB in the end (delta: 57.8MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2024-11-18 17:18:02,789 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 17:18:02,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.05ms. Allocated memory is still 184.5MB. Free memory was 114.9MB in the beginning and 96.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 17:18:02,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.55ms. Allocated memory is still 184.5MB. Free memory was 96.9MB in the beginning and 87.7MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-18 17:18:02,791 INFO L158 Benchmark]: Boogie Preprocessor took 158.70ms. Allocated memory is still 184.5MB. Free memory was 87.7MB in the beginning and 81.7MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 17:18:02,791 INFO L158 Benchmark]: RCFGBuilder took 1036.71ms. Allocated memory is still 184.5MB. Free memory was 81.7MB in the beginning and 113.2MB in the end (delta: -31.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-11-18 17:18:02,791 INFO L158 Benchmark]: TraceAbstraction took 1583.08ms. Allocated memory is still 184.5MB. Free memory was 112.0MB in the beginning and 57.1MB in the end (delta: 54.9MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2024-11-18 17:18:02,792 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 184.5MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 17:18:02,797 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 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.05ms. Allocated memory is still 184.5MB. Free memory was 114.9MB in the beginning and 96.9MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.55ms. Allocated memory is still 184.5MB. Free memory was 96.9MB in the beginning and 87.7MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 158.70ms. Allocated memory is still 184.5MB. Free memory was 87.7MB in the beginning and 81.7MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1036.71ms. Allocated memory is still 184.5MB. Free memory was 81.7MB in the beginning and 113.2MB in the end (delta: -31.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1583.08ms. Allocated memory is still 184.5MB. Free memory was 112.0MB in the beginning and 57.1MB in the end (delta: 54.9MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. * Witness Printer took 5.76ms. Allocated memory is still 184.5MB. Free memory is still 57.1MB. 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 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 99. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 8); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (8 - 1); [L29] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L32] const SORT_1 var_9 = 0; [L33] const SORT_5 var_17 = 1; [L34] const SORT_5 var_29 = 0; [L35] const SORT_1 var_75 = 1; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L39] SORT_1 input_4; [L40] SORT_5 input_6; [L41] SORT_5 input_7; [L42] SORT_5 input_8; [L43] SORT_5 input_27; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L45] SORT_1 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L46] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L47] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L48] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L49] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L50] SORT_5 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L51] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L51] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L52] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L52] SORT_5 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L53] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L53] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L54] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L54] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L55] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=255, mask_SORT_5=1, var_17=1, var_29=0, var_75=1, var_9=0] [L55] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_1 init_11_arg_1 = var_9; [L58] state_10 = init_11_arg_1 [L59] SORT_1 init_13_arg_1 = var_9; [L60] state_12 = init_13_arg_1 [L61] SORT_1 init_22_arg_1 = var_9; [L62] state_21 = init_22_arg_1 [L63] SORT_1 init_24_arg_1 = var_9; [L64] state_23 = init_24_arg_1 [L65] SORT_1 init_26_arg_1 = var_9; [L66] state_25 = init_26_arg_1 [L67] SORT_5 init_31_arg_1 = var_29; [L68] state_30 = init_31_arg_1 [L69] SORT_1 init_33_arg_1 = var_9; [L70] state_32 = init_33_arg_1 [L71] SORT_5 init_35_arg_1 = var_29; [L72] state_34 = init_35_arg_1 [L73] SORT_1 init_37_arg_1 = var_9; [L74] state_36 = init_37_arg_1 [L75] SORT_1 init_40_arg_1 = var_9; [L76] state_39 = init_40_arg_1 [L77] SORT_1 init_42_arg_1 = var_9; [L78] state_41 = init_42_arg_1 VAL [mask_SORT_1=255, mask_SORT_5=1, state_10=0, state_12=0, state_21=0, state_23=0, state_25=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, var_17=1, var_29=0, var_75=1, var_9=0] [L81] input_2 = __VERIFIER_nondet_uchar() [L82] input_3 = __VERIFIER_nondet_uchar() [L83] input_4 = __VERIFIER_nondet_uchar() [L84] input_6 = __VERIFIER_nondet_uchar() [L85] input_7 = __VERIFIER_nondet_uchar() [L86] EXPR input_7 & mask_SORT_5 VAL [mask_SORT_1=255, mask_SORT_5=1, state_10=0, state_12=0, state_21=0, state_23=0, state_25=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, var_17=1, var_29=0, var_75=1, var_9=0] [L86] input_7 = input_7 & mask_SORT_5 [L87] input_8 = __VERIFIER_nondet_uchar() [L88] EXPR input_8 & mask_SORT_5 VAL [input_7=0, mask_SORT_1=255, mask_SORT_5=1, state_10=0, state_12=0, state_21=0, state_23=0, state_25=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, var_17=1, var_29=0, var_75=1, var_9=0] [L88] input_8 = input_8 & mask_SORT_5 [L89] input_27 = __VERIFIER_nondet_uchar() [L92] SORT_1 var_14_arg_0 = state_10; [L93] SORT_1 var_14_arg_1 = state_12; [L94] SORT_5 var_14 = var_14_arg_0 == var_14_arg_1; [L95] SORT_5 var_18_arg_0 = var_14; [L96] SORT_5 var_18 = ~var_18_arg_0; [L97] SORT_5 var_19_arg_0 = var_17; [L98] SORT_5 var_19_arg_1 = var_18; VAL [input_7=0, input_8=0, mask_SORT_1=255, mask_SORT_5=1, state_21=0, state_23=0, state_25=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, var_17=1, var_19_arg_0=1, var_19_arg_1=-2, var_29=0, var_75=1, var_9=0] [L99] EXPR var_19_arg_0 & var_19_arg_1 VAL [input_7=0, input_8=0, mask_SORT_1=255, mask_SORT_5=1, state_21=0, state_23=0, state_25=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, var_17=1, var_29=0, var_75=1, var_9=0] [L99] SORT_5 var_19 = var_19_arg_0 & var_19_arg_1; [L100] EXPR var_19 & mask_SORT_5 VAL [input_7=0, input_8=0, mask_SORT_1=255, mask_SORT_5=1, state_21=0, state_23=0, state_25=0, state_30=0, state_32=0, state_34=0, state_36=0, state_39=0, state_41=0, var_17=1, var_29=0, var_75=1, var_9=0] [L100] var_19 = var_19 & mask_SORT_5 [L101] SORT_5 bad_20_arg_0 = var_19; [L102] CALL __VERIFIER_assert(!(bad_20_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 105 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 630 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 376 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 254 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2024-11-18 17:18:02,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash 1ed4a8166e43af31025ed37886c26d8ffdcca7c92b59539857ec6cced7b52d7d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:18:05,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:18:05,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-18 17:18:05,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:18:05,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:18:05,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:18:05,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:18:05,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:18:05,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:18:05,329 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:18:05,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:18:05,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:18:05,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:18:05,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:18:05,335 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:18:05,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:18:05,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:18:05,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:18:05,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:18:05,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:18:05,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:18:05,338 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 17:18:05,339 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 17:18:05,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:18:05,339 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 17:18:05,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:18:05,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:18:05,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:18:05,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:18:05,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:18:05,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:18:05,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:18:05,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:18:05,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:18:05,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:18:05,343 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 17:18:05,343 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 17:18:05,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:18:05,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:18:05,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:18:05,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:18:05,345 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed4a8166e43af31025ed37886c26d8ffdcca7c92b59539857ec6cced7b52d7d [2024-11-18 17:18:05,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:18:05,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:18:05,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:18:05,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:18:05,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:18:05,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c [2024-11-18 17:18:07,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:18:07,545 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:18:07,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c [2024-11-18 17:18:07,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24dd6bbb/ea01e7b1814a4b45bb5d9b6da8533d8e/FLAG623fad12e [2024-11-18 17:18:07,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24dd6bbb/ea01e7b1814a4b45bb5d9b6da8533d8e [2024-11-18 17:18:07,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:18:07,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:18:07,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:18:07,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:18:07,594 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:18:07,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:18:07" (1/1) ... [2024-11-18 17:18:07,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759aa1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:07, skipping insertion in model container [2024-11-18 17:18:07,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:18:07" (1/1) ... [2024-11-18 17:18:07,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:18:07,850 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c[1249,1262] [2024-11-18 17:18:07,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:18:07,954 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:18:07,969 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v4.c[1249,1262] [2024-11-18 17:18:08,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:18:08,035 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:18:08,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08 WrapperNode [2024-11-18 17:18:08,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:18:08,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:18:08,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:18:08,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:18:08,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,095 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 248 [2024-11-18 17:18:08,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:18:08,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:18:08,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:18:08,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:18:08,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,117 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,146 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]. [2024-11-18 17:18:08,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:18:08,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:18:08,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:18:08,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:18:08,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (1/1) ... [2024-11-18 17:18:08,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:18:08,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:18:08,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 17:18:08,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 17:18:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:18:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 17:18:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:18:08,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:18:08,435 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:18:08,440 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:18:08,776 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-18 17:18:08,777 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:18:08,788 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:18:08,789 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:18:08,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:18:08 BoogieIcfgContainer [2024-11-18 17:18:08,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:18:08,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:18:08,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:18:08,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:18:08,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:18:07" (1/3) ... [2024-11-18 17:18:08,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767e474d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:18:08, skipping insertion in model container [2024-11-18 17:18:08,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:18:08" (2/3) ... [2024-11-18 17:18:08,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767e474d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:18:08, skipping insertion in model container [2024-11-18 17:18:08,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:18:08" (3/3) ... [2024-11-18 17:18:08,801 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.eq_sdp_v4.c [2024-11-18 17:18:08,834 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:18:08,835 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:18:08,902 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:18:08,909 INFO L333 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=LoopHeads, 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;@153fcab7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:18:08,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:18:08,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-11-18 17:18:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-18 17:18:08,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:18:08,925 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-18 17:18:08,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:18:08,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:18:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-18 17:18:08,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:18:08,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262340660] [2024-11-18 17:18:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:18:08,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 17:18:08,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:18:08,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 17:18:08,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 17:18:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:18:09,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-18 17:18:09,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:18:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:18:09,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:18:09,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 17:18:09,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262340660] [2024-11-18 17:18:09,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262340660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:18:09,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:18:09,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:18:09,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370103579] [2024-11-18 17:18:09,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:18:09,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:18:09,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 17:18:09,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:18:09,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:18:09,377 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-18 17:18:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:18:09,416 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2024-11-18 17:18:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:18:09,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2024-11-18 17:18:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:18:09,427 INFO L225 Difference]: With dead ends: 17 [2024-11-18 17:18:09,427 INFO L226 Difference]: Without dead ends: 9 [2024-11-18 17:18:09,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:18:09,435 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:18:09,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:18:09,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-18 17:18:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-18 17:18:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-11-18 17:18:09,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-18 17:18:09,467 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-18 17:18:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:18:09,467 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-18 17:18:09,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-18 17:18:09,468 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-18 17:18:09,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-18 17:18:09,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:18:09,469 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-18 17:18:09,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 17:18:09,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 17:18:09,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:18:09,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:18:09,674 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-18 17:18:09,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:18:09,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627656844] [2024-11-18 17:18:09,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:18:09,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 17:18:09,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:18:09,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 17:18:09,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-18 17:18:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:18:09,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-18 17:18:09,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:18:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:18:10,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 17:18:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:18:15,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 17:18:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627656844] [2024-11-18 17:18:15,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627656844] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 17:18:15,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 17:18:15,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-18 17:18:15,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665524705] [2024-11-18 17:18:15,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 17:18:15,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 17:18:15,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 17:18:15,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 17:18:15,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2024-11-18 17:18:15,082 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-11-18 17:18:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:18:15,683 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-18 17:18:15,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 17:18:15,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) Word has length 8 [2024-11-18 17:18:15,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:18:15,685 INFO L225 Difference]: With dead ends: 14 [2024-11-18 17:18:15,686 INFO L226 Difference]: Without dead ends: 12 [2024-11-18 17:18:15,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=28, Invalid=61, Unknown=1, NotChecked=0, Total=90 [2024-11-18 17:18:15,687 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:18:15,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 17:18:15,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-18 17:18:15,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-18 17:18:15,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-18 17:18:15,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-18 17:18:15,695 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-18 17:18:15,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:18:15,695 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-18 17:18:15,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-11-18 17:18:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-18 17:18:15,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-18 17:18:15,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:18:15,697 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-18 17:18:15,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-18 17:18:15,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 17:18:15,898 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:18:15,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:18:15,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-18 17:18:15,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:18:15,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134413137] [2024-11-18 17:18:15,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 17:18:15,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 17:18:15,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:18:15,902 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 17:18:15,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-18 17:18:16,073 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 17:18:16,073 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 17:18:16,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-18 17:18:16,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:18:18,330 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:18:18,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 17:18:30,346 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse28 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse26 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_21~0#1|)) (.cse3 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_75~0#1|))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse26 .cse3)))) (.cse25 (forall ((|v_ULTIMATE.start_main_~var_19_arg_0~0#1_16| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_19_arg_0~0#1_16|)))) .cse28))))) (.cse13 (= (_ bv0 8) ((_ extract 7 0) (bvand .cse28 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_29~0#1|))))))) (.cse29 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_9~0#1|)))) (.cse15 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_25~0#1|)))) (.cse16 (= ((_ extract 7 0) (bvand .cse28 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_30~0#1|))))) (_ bv0 8))) (.cse27 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|))) (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse26 .cse27)))))))) (.cse8 (not .cse16)) (.cse6 (bvneg .cse15)) (.cse10 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvmul (_ bv2 32) .cse29)))))))) (.cse20 (not .cse13)) (.cse21 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvneg .cse29) .cse29)))))))) (.cse12 ((_ zero_extend 24) ((_ extract 7 0) .cse29))) (.cse7 (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|)))) .cse3))) .cse25)) (.cse0 (forall ((|v_ULTIMATE.start_main_~var_19_arg_0~0#1_16| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_19_arg_0~0#1_16|)))) .cse28))))) (.cse17 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse26 (bvneg .cse27))))))))) (.cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_39~0#1|)))))) (.cse9 (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|)))) .cse3)) .cse25))) (and (or (and (or .cse0 (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse2 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse2))) .cse3)) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse4))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse6))))))) .cse2)))))))) .cse7) .cse8) (or (and .cse9 (or .cse0 (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse11 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 .cse11))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 .cse11)))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse11))) .cse3)))))) .cse13) (or (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse14 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse14))) .cse3)) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse14 .cse4))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse15))))))) .cse14))))))) .cse0) .cse7) .cse16) (or .cse8 (and .cse9 (or .cse0 (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse18 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse6 .cse17))))))) .cse18))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse18 .cse4)))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse18))) .cse3))))))) (or (and .cse7 (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse19 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse19))) .cse3)) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 .cse19))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 .cse19))))))) .cse0)) .cse13) (or .cse20 (and .cse9 (or .cse0 (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse22 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse22))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 .cse22)))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse22))) .cse3))))))) (or .cse20 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse23 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse23))) .cse3)) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse21 .cse23))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse12 .cse23))))))) .cse0) .cse7)) (or (and (or .cse0 (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse24 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse17 .cse15))))))) .cse24))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse4)))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse24))) .cse3))))) .cse9) .cse16))))) is different from false [2024-11-18 17:18:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2024-11-18 17:18:40,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 17:18:40,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134413137] [2024-11-18 17:18:40,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134413137] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 17:18:40,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 17:18:40,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-18 17:18:40,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827069412] [2024-11-18 17:18:40,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 17:18:40,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 17:18:40,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 17:18:40,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 17:18:40,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2024-11-18 17:18:40,372 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2024-11-18 17:18:52,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:18:52,308 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-11-18 17:18:52,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 17:18:52,309 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) Word has length 11 [2024-11-18 17:18:52,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:18:52,310 INFO L225 Difference]: With dead ends: 17 [2024-11-18 17:18:52,310 INFO L226 Difference]: Without dead ends: 15 [2024-11-18 17:18:52,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=55, Invalid=130, Unknown=1, NotChecked=24, Total=210 [2024-11-18 17:18:52,312 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 17:18:52,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 8 Unchecked, 1.2s Time] [2024-11-18 17:18:52,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-18 17:18:52,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-18 17:18:52,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2024-11-18 17:18:52,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-18 17:18:52,317 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2024-11-18 17:18:52,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:18:52,318 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-18 17:18:52,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2024-11-18 17:18:52,318 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-18 17:18:52,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-18 17:18:52,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:18:52,319 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-18 17:18:52,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-18 17:18:52,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 17:18:52,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:18:52,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:18:52,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 3 times [2024-11-18 17:18:52,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:18:52,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109748068] [2024-11-18 17:18:52,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 17:18:52,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 17:18:52,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:18:52,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 17:18:52,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-18 17:18:52,853 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-18 17:18:52,854 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 17:18:52,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-18 17:18:52,880 INFO L278 TraceCheckSpWp]: Computing forward predicates...