./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.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.dyn_partition.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 807a67cda124a3fcd6cb05c7902844a26646fa59fdd69e67d53bd60fc10f4ac4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:16:15,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:16:15,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 17:16:15,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:16:15,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:16:15,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:16:15,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:16:15,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:16:15,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:16:15,841 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:16:15,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:16:15,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:16:15,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:16:15,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:16:15,843 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:16:15,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:16:15,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:16:15,844 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 17:16:15,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:16:15,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:16:15,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:16:15,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:16:15,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:16:15,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:16:15,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:16:15,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:16:15,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:16:15,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:16:15,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:16:15,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:16:15,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:16:15,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:16:15,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:16:15,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 17:16:15,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 17:16:15,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:16:15,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:16:15,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:16:15,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:16:15,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 807a67cda124a3fcd6cb05c7902844a26646fa59fdd69e67d53bd60fc10f4ac4 [2024-11-18 17:16:16,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:16:16,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:16:16,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:16:16,155 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:16:16,156 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:16:16,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c [2024-11-18 17:16:17,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:16:17,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:16:17,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c [2024-11-18 17:16:17,819 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/010e40f6b/41fff850fbd84e3988e2398377719fd9/FLAG1baf9527c [2024-11-18 17:16:18,180 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/010e40f6b/41fff850fbd84e3988e2398377719fd9 [2024-11-18 17:16:18,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:16:18,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:16:18,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:16:18,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:16:18,192 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:16:18,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,194 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab4ef61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18, skipping insertion in model container [2024-11-18 17:16:18,194 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:16:18,407 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.dyn_partition.c[1253,1266] [2024-11-18 17:16:18,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:16:18,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:16:18,471 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.dyn_partition.c[1253,1266] [2024-11-18 17:16:18,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:16:18,512 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:16:18,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18 WrapperNode [2024-11-18 17:16:18,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:16:18,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:16:18,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:16:18,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:16:18,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,580 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 196 [2024-11-18 17:16:18,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:16:18,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:16:18,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:16:18,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:16:18,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,639 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 17:16:18,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:16:18,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:16:18,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:16:18,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:16:18,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (1/1) ... [2024-11-18 17:16:18,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:16:18,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:16:18,730 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 17:16:18,733 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 17:16:18,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:16:18,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 17:16:18,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:16:18,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:16:18,877 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:16:18,879 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:16:19,310 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-11-18 17:16:19,310 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:16:19,330 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:16:19,330 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:16:19,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:19 BoogieIcfgContainer [2024-11-18 17:16:19,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:16:19,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:16:19,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:16:19,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:16:19,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:16:18" (1/3) ... [2024-11-18 17:16:19,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b693357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:16:19, skipping insertion in model container [2024-11-18 17:16:19,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:18" (2/3) ... [2024-11-18 17:16:19,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b693357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:16:19, skipping insertion in model container [2024-11-18 17:16:19,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:19" (3/3) ... [2024-11-18 17:16:19,343 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.dyn_partition.c [2024-11-18 17:16:19,360 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:16:19,361 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:16:19,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:16:19,442 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;@6f44a79b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:16:19,443 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:16:19,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 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 17:16:19,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-18 17:16:19,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:19,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:16:19,458 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:19,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:19,465 INFO L85 PathProgramCache]: Analyzing trace with hash 379966597, now seen corresponding path program 1 times [2024-11-18 17:16:19,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:16:19,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542856744] [2024-11-18 17:16:19,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:16:19,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:16:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:16:20,021 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 17:16:20,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:16:20,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542856744] [2024-11-18 17:16:20,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542856744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:16:20,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:16:20,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:16:20,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238487219] [2024-11-18 17:16:20,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:16:20,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:16:20,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:16:20,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:16:20,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:16:20,059 INFO L87 Difference]: Start difference. First operand has 54 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 53 states have internal predecessors, (77), 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 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17:16:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:16:20,100 INFO L93 Difference]: Finished difference Result 89 states and 129 transitions. [2024-11-18 17:16:20,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:16:20,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2024-11-18 17:16:20,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:16:20,113 INFO L225 Difference]: With dead ends: 89 [2024-11-18 17:16:20,113 INFO L226 Difference]: Without dead ends: 53 [2024-11-18 17:16:20,116 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 17:16:20,122 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 207 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 17:16:20,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 207 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:16:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-18 17:16:20,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-18 17:16:20,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 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 17:16:20,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2024-11-18 17:16:20,156 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 17 [2024-11-18 17:16:20,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:16:20,156 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2024-11-18 17:16:20,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17:16:20,157 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2024-11-18 17:16:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-18 17:16:20,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:20,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:16:20,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 17:16:20,158 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:20,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1104242150, now seen corresponding path program 1 times [2024-11-18 17:16:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:16:20,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265720426] [2024-11-18 17:16:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:16:20,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:16:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:16:20,304 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 17:16:20,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:16:20,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265720426] [2024-11-18 17:16:20,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265720426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:16:20,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:16:20,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:16:20,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842110453] [2024-11-18 17:16:20,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:16:20,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:16:20,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:16:20,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:16:20,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:16:20,309 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 17:16:20,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:16:20,337 INFO L93 Difference]: Finished difference Result 90 states and 127 transitions. [2024-11-18 17:16:20,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:16:20,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-11-18 17:16:20,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:16:20,339 INFO L225 Difference]: With dead ends: 90 [2024-11-18 17:16:20,339 INFO L226 Difference]: Without dead ends: 55 [2024-11-18 17:16:20,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 17:16:20,340 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:16:20,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:16:20,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-18 17:16:20,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-18 17:16:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 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 17:16:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 77 transitions. [2024-11-18 17:16:20,347 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 77 transitions. Word has length 18 [2024-11-18 17:16:20,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:16:20,348 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 77 transitions. [2024-11-18 17:16:20,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 17:16:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions. [2024-11-18 17:16:20,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-18 17:16:20,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:20,349 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 17:16:20,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 17:16:20,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:20,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:20,350 INFO L85 PathProgramCache]: Analyzing trace with hash -969734146, now seen corresponding path program 1 times [2024-11-18 17:16:20,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:16:20,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046669404] [2024-11-18 17:16:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:16:20,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:16:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:16:20,690 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 17:16:20,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 17:16:20,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046669404] [2024-11-18 17:16:20,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046669404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:16:20,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:16:20,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 17:16:20,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140392365] [2024-11-18 17:16:20,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:16:20,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 17:16:20,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 17:16:20,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 17:16:20,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 17:16:20,693 INFO L87 Difference]: Start difference. First operand 55 states and 77 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 17:16:20,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:16:20,788 INFO L93 Difference]: Finished difference Result 111 states and 153 transitions. [2024-11-18 17:16:20,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 17:16:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2024-11-18 17:16:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:16:20,791 INFO L225 Difference]: With dead ends: 111 [2024-11-18 17:16:20,791 INFO L226 Difference]: Without dead ends: 74 [2024-11-18 17:16:20,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 17:16:20,794 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 37 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:16:20,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 235 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:16:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-18 17:16:20,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 58. [2024-11-18 17:16:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 57 states have internal predecessors, (80), 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 17:16:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2024-11-18 17:16:20,802 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 19 [2024-11-18 17:16:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:16:20,803 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2024-11-18 17:16:20,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 17:16:20,803 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2024-11-18 17:16:20,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 17:16:20,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:20,806 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] [2024-11-18 17:16:20,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 17:16:20,806 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:20,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:20,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1567557725, now seen corresponding path program 1 times [2024-11-18 17:16:20,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 17:16:20,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563851886] [2024-11-18 17:16:20,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:16:20,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 17:16:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 17:16:20,846 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 17:16:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 17:16:20,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 17:16:20,901 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 17:16:20,902 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 17:16:20,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 17:16:20,907 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-18 17:16:20,936 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 17:16:20,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:16:20 BoogieIcfgContainer [2024-11-18 17:16:20,942 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 17:16:20,943 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 17:16:20,944 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 17:16:20,944 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 17:16:20,944 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:19" (3/4) ... [2024-11-18 17:16:20,947 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 17:16:20,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 17:16:20,951 INFO L158 Benchmark]: Toolchain (without parser) took 2766.60ms. Allocated memory is still 180.4MB. Free memory was 125.5MB in the beginning and 125.6MB in the end (delta: -106.0kB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-11-18 17:16:20,951 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 180.4MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 17:16:20,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.92ms. Allocated memory is still 180.4MB. Free memory was 124.8MB in the beginning and 110.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 17:16:20,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.69ms. Allocated memory is still 180.4MB. Free memory was 110.9MB in the beginning and 105.9MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 17:16:20,954 INFO L158 Benchmark]: Boogie Preprocessor took 103.99ms. Allocated memory is still 180.4MB. Free memory was 105.2MB in the beginning and 102.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 17:16:20,954 INFO L158 Benchmark]: RCFGBuilder took 644.67ms. Allocated memory is still 180.4MB. Free memory was 102.5MB in the beginning and 73.8MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-18 17:16:20,954 INFO L158 Benchmark]: TraceAbstraction took 1607.34ms. Allocated memory is still 180.4MB. Free memory was 73.1MB in the beginning and 125.6MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 17:16:20,955 INFO L158 Benchmark]: Witness Printer took 6.99ms. Allocated memory is still 180.4MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 17:16:20,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 180.4MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.92ms. Allocated memory is still 180.4MB. Free memory was 124.8MB in the beginning and 110.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.69ms. Allocated memory is still 180.4MB. Free memory was 110.9MB in the beginning and 105.9MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.99ms. Allocated memory is still 180.4MB. Free memory was 105.2MB in the beginning and 102.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.67ms. Allocated memory is still 180.4MB. Free memory was 102.5MB in the beginning and 73.8MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1607.34ms. Allocated memory is still 180.4MB. Free memory was 73.1MB in the beginning and 125.6MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.99ms. Allocated memory is still 180.4MB. Free memory is still 125.6MB. 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 69. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 3); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (3 - 1); [L32] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 32); [L33] const SORT_23 msb_SORT_23 = (SORT_23)1 << (32 - 1); [L35] const SORT_4 var_5 = 0; [L36] const SORT_1 var_13 = 1; [L37] const SORT_1 var_17 = 0; [L38] const SORT_23 var_25 = 1; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L43] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=7, var_13=1, var_17=0, var_25=1, var_5=0] [L43] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L44] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 VAL [mask_SORT_1=1, mask_SORT_4=7, var_13=1, var_17=0, var_25=1, var_5=0] [L44] SORT_4 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=7, var_13=1, var_17=0, var_25=1, var_5=0] [L45] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=7, var_13=1, var_17=0, var_25=1, var_5=0] [L46] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_4 init_7_arg_1 = var_5; [L49] state_6 = init_7_arg_1 [L50] SORT_4 init_9_arg_1 = var_5; [L51] state_8 = init_9_arg_1 [L52] SORT_1 init_19_arg_1 = var_17; [L53] state_18 = init_19_arg_1 [L54] SORT_1 init_21_arg_1 = var_17; [L55] state_20 = init_21_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=7, state_18=0, state_20=0, state_6=0, state_8=0, var_13=1, var_25=1] [L58] input_2 = __VERIFIER_nondet_uchar() [L59] input_3 = __VERIFIER_nondet_uchar() [L62] SORT_4 var_10_arg_0 = state_6; [L63] SORT_4 var_10_arg_1 = state_8; [L64] SORT_1 var_10 = var_10_arg_0 <= var_10_arg_1; [L65] SORT_1 var_14_arg_0 = var_10; [L66] SORT_1 var_14 = ~var_14_arg_0; [L67] SORT_1 var_15_arg_0 = var_13; [L68] SORT_1 var_15_arg_1 = var_14; VAL [mask_SORT_1=1, mask_SORT_4=7, state_18=0, state_20=0, state_6=0, state_8=0, var_13=1, var_15_arg_0=1, var_15_arg_1=-2, var_25=1] [L69] EXPR var_15_arg_0 & var_15_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=7, state_18=0, state_20=0, state_6=0, state_8=0, var_13=1, var_25=1] [L69] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L70] EXPR var_15 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_4=7, state_18=0, state_20=0, state_6=0, state_8=0, var_13=1, var_25=1] [L70] var_15 = var_15 & mask_SORT_1 [L71] SORT_1 bad_16_arg_0 = var_15; [L72] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 645 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 437 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 208 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=3, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 17:16:20,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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.dyn_partition.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 807a67cda124a3fcd6cb05c7902844a26646fa59fdd69e67d53bd60fc10f4ac4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 17:16:23,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 17:16:23,326 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-18 17:16:23,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 17:16:23,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 17:16:23,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 17:16:23,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 17:16:23,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 17:16:23,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 17:16:23,379 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 17:16:23,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 17:16:23,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 17:16:23,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 17:16:23,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 17:16:23,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 17:16:23,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 17:16:23,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 17:16:23,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 17:16:23,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 17:16:23,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 17:16:23,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 17:16:23,387 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 17:16:23,387 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 17:16:23,388 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 17:16:23,388 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 17:16:23,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 17:16:23,389 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 17:16:23,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 17:16:23,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 17:16:23,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 17:16:23,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 17:16:23,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:16:23,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 17:16:23,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 17:16:23,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 17:16:23,393 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 17:16:23,393 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 17:16:23,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 17:16:23,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 17:16:23,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 17:16:23,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 17:16:23,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 807a67cda124a3fcd6cb05c7902844a26646fa59fdd69e67d53bd60fc10f4ac4 [2024-11-18 17:16:23,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 17:16:23,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 17:16:23,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 17:16:23,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 17:16:23,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 17:16:23,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c [2024-11-18 17:16:25,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 17:16:25,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 17:16:25,635 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.dyn_partition.c [2024-11-18 17:16:25,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/397d1489c/4096564fe73e45d187cb53f1b31f6843/FLAG49e150095 [2024-11-18 17:16:25,656 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/397d1489c/4096564fe73e45d187cb53f1b31f6843 [2024-11-18 17:16:25,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 17:16:25,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 17:16:25,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 17:16:25,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 17:16:25,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 17:16:25,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:25" (1/1) ... [2024-11-18 17:16:25,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728e8d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:25, skipping insertion in model container [2024-11-18 17:16:25,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:16:25" (1/1) ... [2024-11-18 17:16:25,690 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 17:16:25,908 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.dyn_partition.c[1253,1266] [2024-11-18 17:16:25,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:16:25,975 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 17:16:25,990 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.dyn_partition.c[1253,1266] [2024-11-18 17:16:26,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 17:16:26,026 INFO L204 MainTranslator]: Completed translation [2024-11-18 17:16:26,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26 WrapperNode [2024-11-18 17:16:26,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 17:16:26,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 17:16:26,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 17:16:26,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 17:16:26,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,068 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2024-11-18 17:16:26,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 17:16:26,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 17:16:26,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 17:16:26,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 17:16:26,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,092 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,110 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 17:16:26,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 17:16:26,131 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 17:16:26,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 17:16:26,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 17:16:26,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (1/1) ... [2024-11-18 17:16:26,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 17:16:26,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 17:16:26,167 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 17:16:26,171 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 17:16:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 17:16:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 17:16:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 17:16:26,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 17:16:26,316 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 17:16:26,318 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 17:16:26,535 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-18 17:16:26,535 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 17:16:26,551 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 17:16:26,552 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 17:16:26,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:26 BoogieIcfgContainer [2024-11-18 17:16:26,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 17:16:26,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 17:16:26,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 17:16:26,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 17:16:26,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:16:25" (1/3) ... [2024-11-18 17:16:26,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c52483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:16:26, skipping insertion in model container [2024-11-18 17:16:26,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:16:26" (2/3) ... [2024-11-18 17:16:26,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c52483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:16:26, skipping insertion in model container [2024-11-18 17:16:26,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:16:26" (3/3) ... [2024-11-18 17:16:26,566 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.dyn_partition.c [2024-11-18 17:16:26,581 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 17:16:26,582 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 17:16:26,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 17:16:26,649 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;@1bad2ff9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 17:16:26,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 17:16:26,654 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 17:16:26,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-18 17:16:26,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:26,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-18 17:16:26,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:26,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:26,671 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-18 17:16:26,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:16:26,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934004067] [2024-11-18 17:16:26,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:16:26,684 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 17:16:26,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:16:26,688 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 17:16:26,690 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 17:16:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:16:26,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-18 17:16:26,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:16:27,053 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 17:16:27,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 17:16:27,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 17:16:27,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934004067] [2024-11-18 17:16:27,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934004067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 17:16:27,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 17:16:27,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 17:16:27,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96638247] [2024-11-18 17:16:27,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 17:16:27,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 17:16:27,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 17:16:27,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 17:16:27,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 17:16:27,090 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 17:16:27,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:16:27,136 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-18 17:16:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 17:16:27,139 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 17:16:27,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:16:27,147 INFO L225 Difference]: With dead ends: 18 [2024-11-18 17:16:27,147 INFO L226 Difference]: Without dead ends: 10 [2024-11-18 17:16:27,150 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 17:16:27,153 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 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 17:16:27,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 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 17:16:27,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-18 17:16:27,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-18 17:16:27,183 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 17:16:27,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-18 17:16:27,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-18 17:16:27,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:16:27,187 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-18 17:16:27,187 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 17:16:27,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-18 17:16:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-18 17:16:27,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:27,188 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-18 17:16:27,193 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 17:16:27,389 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 17:16:27,389 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:27,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-18 17:16:27,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:16:27,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798890897] [2024-11-18 17:16:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 17:16:27,391 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 17:16:27,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:16:27,393 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 17:16:27,394 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 17:16:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 17:16:27,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-18 17:16:27,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:16:27,674 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 17:16:27,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 17:16:28,143 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 17:16:28,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 17:16:28,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798890897] [2024-11-18 17:16:28,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798890897] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 17:16:28,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 17:16:28,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-18 17:16:28,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892402387] [2024-11-18 17:16:28,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 17:16:28,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 17:16:28,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 17:16:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 17:16:28,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 17:16:28,148 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 17:16:28,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:16:28,203 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-18 17:16:28,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 17:16:28,204 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 17:16:28,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:16:28,204 INFO L225 Difference]: With dead ends: 15 [2024-11-18 17:16:28,204 INFO L226 Difference]: Without dead ends: 13 [2024-11-18 17:16:28,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-18 17:16:28,206 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:16:28,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 17:16:28,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-18 17:16:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-18 17:16:28,209 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 17:16:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-18 17:16:28,210 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-18 17:16:28,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:16:28,210 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-18 17:16:28,211 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 17:16:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-18 17:16:28,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-18 17:16:28,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:28,212 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-18 17:16:28,216 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 17:16:28,414 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 17:16:28,415 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:28,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:28,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-18 17:16:28,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:16:28,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988269945] [2024-11-18 17:16:28,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 17:16:28,420 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 17:16:28,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:16:28,422 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 17:16:28,424 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 17:16:28,500 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 17:16:28,501 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 17:16:28,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-18 17:16:28,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:16:28,780 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 17:16:28,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 17:16:29,892 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 17:16:29,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 17:16:29,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988269945] [2024-11-18 17:16:29,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988269945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 17:16:29,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 17:16:29,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-18 17:16:29,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347147111] [2024-11-18 17:16:29,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 17:16:29,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 17:16:29,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 17:16:29,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 17:16:29,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-18 17:16:29,895 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 17:16:30,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:16:30,529 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-11-18 17:16:30,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 17:16:30,530 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 17:16:30,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:16:30,531 INFO L225 Difference]: With dead ends: 24 [2024-11-18 17:16:30,531 INFO L226 Difference]: Without dead ends: 22 [2024-11-18 17:16:30,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2024-11-18 17:16:30,533 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 17:16:30,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 17:16:30,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-18 17:16:30,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2024-11-18 17:16:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 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 17:16:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-18 17:16:30,548 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 11 [2024-11-18 17:16:30,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:16:30,548 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-18 17:16:30,549 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 17:16:30,549 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-18 17:16:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-18 17:16:30,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:30,551 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1] [2024-11-18 17:16:30,555 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 17:16:30,751 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 17:16:30,752 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:30,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:30,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1003628899, now seen corresponding path program 3 times [2024-11-18 17:16:30,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:16:30,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579087373] [2024-11-18 17:16:30,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 17:16:30,754 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 17:16:30,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:16:30,758 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 17:16:30,759 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 17:16:30,881 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-18 17:16:30,881 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 17:16:30,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-18 17:16:30,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:16:31,416 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:16:31,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 17:16:36,153 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:16:36,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 17:16:36,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579087373] [2024-11-18 17:16:36,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579087373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 17:16:36,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 17:16:36,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-18 17:16:36,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553708860] [2024-11-18 17:16:36,155 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 17:16:36,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 17:16:36,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 17:16:36,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 17:16:36,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-18 17:16:36,157 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 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 17:16:39,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 17:16:39,621 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2024-11-18 17:16:39,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-18 17:16:39,622 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 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 20 [2024-11-18 17:16:39,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 17:16:39,623 INFO L225 Difference]: With dead ends: 42 [2024-11-18 17:16:39,623 INFO L226 Difference]: Without dead ends: 40 [2024-11-18 17:16:39,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=298, Invalid=694, Unknown=0, NotChecked=0, Total=992 [2024-11-18 17:16:39,625 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 17:16:39,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 26 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 17:16:39,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-18 17:16:39,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2024-11-18 17:16:39,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 38 states have internal predecessors, (39), 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 17:16:39,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2024-11-18 17:16:39,652 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 20 [2024-11-18 17:16:39,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 17:16:39,652 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2024-11-18 17:16:39,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 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 17:16:39,653 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2024-11-18 17:16:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-18 17:16:39,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 17:16:39,654 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 1, 1, 1, 1] [2024-11-18 17:16:39,662 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 (5)] Ended with exit code 0 [2024-11-18 17:16:39,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 17:16:39,855 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 17:16:39,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 17:16:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1673576541, now seen corresponding path program 4 times [2024-11-18 17:16:39,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 17:16:39,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381009687] [2024-11-18 17:16:39,856 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-18 17:16:39,857 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 17:16:39,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 17:16:39,858 INFO L229 MonitoredProcess]: Starting monitored process 6 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 17:16:39,860 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 (6)] Waiting until timeout for monitored process [2024-11-18 17:16:40,109 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-18 17:16:40,109 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 17:16:40,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-11-18 17:16:40,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 17:16:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:16:41,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 17:17:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 17:17:05,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 17:17:05,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381009687] [2024-11-18 17:17:05,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381009687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 17:17:05,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 17:17:05,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2024-11-18 17:17:05,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993571050] [2024-11-18 17:17:05,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 17:17:05,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-18 17:17:05,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 17:17:05,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-18 17:17:05,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 17:17:05,702 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 17:17:23,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-18 17:17:30,891 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-18 17:17:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-18 17:17:30,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-18 17:17:30,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=569, Invalid=1687, Unknown=0, NotChecked=0, Total=2256 [2024-11-18 17:17:30,894 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-18 17:17:30,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 23 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-18 17:17:30,901 INFO L540 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 (6)] Forceful destruction successful, exit code 0 [2024-11-18 17:17:31,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 17:17:31,098 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 47 more [2024-11-18 17:17:31,104 INFO L158 Benchmark]: Toolchain (without parser) took 65444.55ms. Allocated memory was 71.3MB in the beginning and 524.3MB in the end (delta: 453.0MB). Free memory was 38.2MB in the beginning and 210.6MB in the end (delta: -172.4MB). Peak memory consumption was 279.8MB. Max. memory is 16.1GB. [2024-11-18 17:17:31,105 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 52.4MB. Free memory is still 35.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 17:17:31,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.32ms. Allocated memory is still 71.3MB. Free memory was 38.0MB in the beginning and 41.2MB in the end (delta: -3.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-11-18 17:17:31,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.01ms. Allocated memory is still 71.3MB. Free memory was 41.2MB in the beginning and 39.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 17:17:31,106 INFO L158 Benchmark]: Boogie Preprocessor took 57.78ms. Allocated memory is still 71.3MB. Free memory was 39.4MB in the beginning and 37.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 17:17:31,106 INFO L158 Benchmark]: RCFGBuilder took 421.15ms. Allocated memory is still 71.3MB. Free memory was 37.0MB in the beginning and 43.1MB in the end (delta: -6.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-18 17:17:31,106 INFO L158 Benchmark]: TraceAbstraction took 64544.97ms. Allocated memory was 71.3MB in the beginning and 524.3MB in the end (delta: 453.0MB). Free memory was 42.7MB in the beginning and 210.6MB in the end (delta: -167.9MB). Peak memory consumption was 285.2MB. Max. memory is 16.1GB. [2024-11-18 17:17:31,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 52.4MB. Free memory is still 35.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.32ms. Allocated memory is still 71.3MB. Free memory was 38.0MB in the beginning and 41.2MB in the end (delta: -3.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.01ms. Allocated memory is still 71.3MB. Free memory was 41.2MB in the beginning and 39.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.78ms. Allocated memory is still 71.3MB. Free memory was 39.4MB in the beginning and 37.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.15ms. Allocated memory is still 71.3MB. Free memory was 37.0MB in the beginning and 43.1MB in the end (delta: -6.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 64544.97ms. Allocated memory was 71.3MB in the beginning and 524.3MB in the end (delta: 453.0MB). Free memory was 42.7MB in the beginning and 210.6MB in the end (delta: -167.9MB). Peak memory consumption was 285.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")