./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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.fischer.2.prop1-func-interl.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 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:01:43,134 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:01:43,190 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 11:01:43,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:01:43,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:01:43,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:01:43,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:01:43,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:01:43,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:01:43,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:01:43,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:01:43,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:01:43,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:01:43,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:01:43,230 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:01:43,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:01:43,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:01:43,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 11:01:43,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:01:43,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:01:43,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:01:43,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:01:43,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:01:43,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:01:43,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:01:43,233 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:01:43,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:01:43,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:01:43,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:01:43,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:01:43,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:01:43,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:01:43,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:01:43,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 11:01:43,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 11:01:43,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:01:43,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:01:43,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:01:43,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:01:43,236 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 [2024-11-16 11:01:43,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:01:43,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:01:43,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:01:43,486 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:01:43,487 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:01:43,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-16 11:01:44,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:01:44,988 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:01:44,988 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-16 11:01:45,000 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a00ddb128/6b3fe86c80954ce5863f26dd2f1c8692/FLAGb86a501fd [2024-11-16 11:01:45,012 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a00ddb128/6b3fe86c80954ce5863f26dd2f1c8692 [2024-11-16 11:01:45,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:01:45,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:01:45,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:01:45,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:01:45,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:01:45,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:45,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a7fd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45, skipping insertion in model container [2024-11-16 11:01:45,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:45,074 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:01:45,230 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.fischer.2.prop1-func-interl.c[1174,1187] [2024-11-16 11:01:45,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:01:45,511 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:01:45,520 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.fischer.2.prop1-func-interl.c[1174,1187] [2024-11-16 11:01:45,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:01:45,651 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:01:45,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45 WrapperNode [2024-11-16 11:01:45,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:01:45,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:01:45,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:01:45,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:01:45,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:45,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:46,312 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4955 [2024-11-16 11:01:46,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:01:46,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:01:46,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:01:46,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:01:46,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:46,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:46,499 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:46,644 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]. [2024-11-16 11:01:46,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:46,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:46,906 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:46,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:46,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:47,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:47,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:01:47,206 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:01:47,207 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:01:47,207 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:01:47,207 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (1/1) ... [2024-11-16 11:01:47,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:01:47,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:01:47,244 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) [2024-11-16 11:01:47,246 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 [2024-11-16 11:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 11:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:01:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:01:47,581 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:01:47,584 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:01:51,730 INFO L? ?]: Removed 2786 outVars from TransFormulas that were not future-live. [2024-11-16 11:01:51,731 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:01:51,871 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:01:51,871 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:01:51,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:01:51 BoogieIcfgContainer [2024-11-16 11:01:51,872 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:01:51,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:01:51,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:01:51,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:01:51,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:01:45" (1/3) ... [2024-11-16 11:01:51,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdac147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:01:51, skipping insertion in model container [2024-11-16 11:01:51,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:01:45" (2/3) ... [2024-11-16 11:01:51,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdac147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:01:51, skipping insertion in model container [2024-11-16 11:01:51,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:01:51" (3/3) ... [2024-11-16 11:01:51,878 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-16 11:01:51,891 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:01:51,891 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:01:51,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:01:51,966 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;@5b8b0e1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:01:51,966 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:01:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 1741 states, 1739 states have (on average 1.500862564692352) internal successors, (2610), 1740 states have internal predecessors, (2610), 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) [2024-11-16 11:01:51,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 11:01:51,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:01:51,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:01:51,982 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:01:51,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:01:51,986 INFO L85 PathProgramCache]: Analyzing trace with hash -419385118, now seen corresponding path program 1 times [2024-11-16 11:01:51,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:01:51,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019076970] [2024-11-16 11:01:51,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:01:51,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:01:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:01:52,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:01:52,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:01:52,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019076970] [2024-11-16 11:01:52,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019076970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:01:52,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:01:52,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:01:52,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603213306] [2024-11-16 11:01:52,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:01:52,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:01:52,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:01:52,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:01:52,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:01:52,833 INFO L87 Difference]: Start difference. First operand has 1741 states, 1739 states have (on average 1.500862564692352) internal successors, (2610), 1740 states have internal predecessors, (2610), 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 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-11-16 11:01:53,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:01:53,733 INFO L93 Difference]: Finished difference Result 3385 states and 5079 transitions. [2024-11-16 11:01:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:01:53,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 96 [2024-11-16 11:01:53,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:01:53,752 INFO L225 Difference]: With dead ends: 3385 [2024-11-16 11:01:53,753 INFO L226 Difference]: Without dead ends: 1738 [2024-11-16 11:01:53,759 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 [2024-11-16 11:01:53,761 INFO L432 NwaCegarLoop]: 2172 mSDtfsCounter, 0 mSDsluCounter, 4339 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6511 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:01:53,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6511 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:01:53,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-16 11:01:53,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-11-16 11:01:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1737 states have (on average 1.5002878526194587) internal successors, (2606), 1737 states have internal predecessors, (2606), 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) [2024-11-16 11:01:53,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2606 transitions. [2024-11-16 11:01:53,840 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2606 transitions. Word has length 96 [2024-11-16 11:01:53,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:01:53,840 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2606 transitions. [2024-11-16 11:01:53,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-11-16 11:01:53,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2606 transitions. [2024-11-16 11:01:53,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 11:01:53,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:01:53,843 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:01:53,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 11:01:53,844 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:01:53,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:01:53,844 INFO L85 PathProgramCache]: Analyzing trace with hash 29019318, now seen corresponding path program 1 times [2024-11-16 11:01:53,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:01:53,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526010270] [2024-11-16 11:01:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:01:53,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:01:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:01:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:01:54,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:01:54,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526010270] [2024-11-16 11:01:54,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526010270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:01:54,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:01:54,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:01:54,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423423418] [2024-11-16 11:01:54,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:01:54,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:01:54,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:01:54,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:01:54,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:01:54,064 INFO L87 Difference]: Start difference. First operand 1738 states and 2606 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-16 11:01:54,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:01:54,719 INFO L93 Difference]: Finished difference Result 3384 states and 5075 transitions. [2024-11-16 11:01:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:01:54,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 97 [2024-11-16 11:01:54,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:01:54,725 INFO L225 Difference]: With dead ends: 3384 [2024-11-16 11:01:54,725 INFO L226 Difference]: Without dead ends: 1740 [2024-11-16 11:01:54,727 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 [2024-11-16 11:01:54,728 INFO L432 NwaCegarLoop]: 2172 mSDtfsCounter, 0 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6508 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:01:54,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6508 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:01:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2024-11-16 11:01:54,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1740. [2024-11-16 11:01:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1739 states have (on average 1.4997124784358826) internal successors, (2608), 1739 states have internal predecessors, (2608), 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) [2024-11-16 11:01:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2608 transitions. [2024-11-16 11:01:54,760 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2608 transitions. Word has length 97 [2024-11-16 11:01:54,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:01:54,760 INFO L471 AbstractCegarLoop]: Abstraction has 1740 states and 2608 transitions. [2024-11-16 11:01:54,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-16 11:01:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2608 transitions. [2024-11-16 11:01:54,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 11:01:54,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:01:54,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:01:54,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 11:01:54,763 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:01:54,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:01:54,763 INFO L85 PathProgramCache]: Analyzing trace with hash 646845127, now seen corresponding path program 1 times [2024-11-16 11:01:54,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:01:54,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199933163] [2024-11-16 11:01:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:01:54,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:01:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:01:55,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:01:55,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:01:55,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199933163] [2024-11-16 11:01:55,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199933163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:01:55,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:01:55,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:01:55,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998066696] [2024-11-16 11:01:55,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:01:55,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:01:55,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:01:55,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:01:55,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:01:55,056 INFO L87 Difference]: Start difference. First operand 1740 states and 2608 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-16 11:01:55,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:01:55,760 INFO L93 Difference]: Finished difference Result 3392 states and 5085 transitions. [2024-11-16 11:01:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:01:55,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 98 [2024-11-16 11:01:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:01:55,769 INFO L225 Difference]: With dead ends: 3392 [2024-11-16 11:01:55,769 INFO L226 Difference]: Without dead ends: 1746 [2024-11-16 11:01:55,771 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 [2024-11-16 11:01:55,772 INFO L432 NwaCegarLoop]: 2172 mSDtfsCounter, 4 mSDsluCounter, 4331 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:01:55,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6503 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:01:55,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2024-11-16 11:01:55,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1746. [2024-11-16 11:01:55,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1746 states, 1745 states have (on average 1.4991404011461318) internal successors, (2616), 1745 states have internal predecessors, (2616), 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) [2024-11-16 11:01:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2616 transitions. [2024-11-16 11:01:55,810 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2616 transitions. Word has length 98 [2024-11-16 11:01:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:01:55,811 INFO L471 AbstractCegarLoop]: Abstraction has 1746 states and 2616 transitions. [2024-11-16 11:01:55,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-16 11:01:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2616 transitions. [2024-11-16 11:01:55,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 11:01:55,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:01:55,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:01:55,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 11:01:55,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:01:55,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:01:55,816 INFO L85 PathProgramCache]: Analyzing trace with hash 93462796, now seen corresponding path program 1 times [2024-11-16 11:01:55,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:01:55,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386054411] [2024-11-16 11:01:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:01:55,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:01:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:01:56,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:01:56,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:01:56,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386054411] [2024-11-16 11:01:56,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386054411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:01:56,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:01:56,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:01:56,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446251082] [2024-11-16 11:01:56,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:01:56,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:01:56,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:01:56,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:01:56,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:01:56,049 INFO L87 Difference]: Start difference. First operand 1746 states and 2616 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-16 11:01:56,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:01:56,763 INFO L93 Difference]: Finished difference Result 3402 states and 5097 transitions. [2024-11-16 11:01:56,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:01:56,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 99 [2024-11-16 11:01:56,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:01:56,769 INFO L225 Difference]: With dead ends: 3402 [2024-11-16 11:01:56,769 INFO L226 Difference]: Without dead ends: 1750 [2024-11-16 11:01:56,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:01:56,773 INFO L432 NwaCegarLoop]: 2172 mSDtfsCounter, 0 mSDsluCounter, 4331 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:01:56,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6503 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:01:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2024-11-16 11:01:56,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1746. [2024-11-16 11:01:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1746 states, 1745 states have (on average 1.4991404011461318) internal successors, (2616), 1745 states have internal predecessors, (2616), 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) [2024-11-16 11:01:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 2616 transitions. [2024-11-16 11:01:56,808 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 2616 transitions. Word has length 99 [2024-11-16 11:01:56,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:01:56,808 INFO L471 AbstractCegarLoop]: Abstraction has 1746 states and 2616 transitions. [2024-11-16 11:01:56,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-16 11:01:56,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 2616 transitions. [2024-11-16 11:01:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 11:01:56,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:01:56,810 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:01:56,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 11:01:56,811 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:01:56,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:01:56,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1307044780, now seen corresponding path program 1 times [2024-11-16 11:01:56,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:01:56,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967257000] [2024-11-16 11:01:56,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:01:56,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:01:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:01:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:01:57,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:01:57,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967257000] [2024-11-16 11:01:57,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967257000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:01:57,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:01:57,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:01:57,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323623530] [2024-11-16 11:01:57,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:01:57,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:01:57,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:01:57,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:01:57,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:01:57,107 INFO L87 Difference]: Start difference. First operand 1746 states and 2616 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-11-16 11:01:59,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:01:59,418 INFO L93 Difference]: Finished difference Result 5034 states and 7544 transitions. [2024-11-16 11:01:59,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:01:59,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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 100 [2024-11-16 11:01:59,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:01:59,428 INFO L225 Difference]: With dead ends: 5034 [2024-11-16 11:01:59,428 INFO L226 Difference]: Without dead ends: 3382 [2024-11-16 11:01:59,430 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 [2024-11-16 11:01:59,432 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 2500 mSDsluCounter, 4913 mSDsCounter, 0 mSdLazyCounter, 3699 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 6578 SdHoareTripleChecker+Invalid, 3700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:01:59,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 6578 Invalid, 3700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3699 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 11:01:59,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2024-11-16 11:01:59,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 1821. [2024-11-16 11:01:59,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1820 states have (on average 1.4983516483516484) internal successors, (2727), 1820 states have internal predecessors, (2727), 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) [2024-11-16 11:01:59,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2727 transitions. [2024-11-16 11:01:59,464 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2727 transitions. Word has length 100 [2024-11-16 11:01:59,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:01:59,465 INFO L471 AbstractCegarLoop]: Abstraction has 1821 states and 2727 transitions. [2024-11-16 11:01:59,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-11-16 11:01:59,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2727 transitions. [2024-11-16 11:01:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 11:01:59,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:01:59,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:01:59,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 11:01:59,467 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:01:59,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:01:59,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1157717251, now seen corresponding path program 1 times [2024-11-16 11:01:59,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:01:59,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636490362] [2024-11-16 11:01:59,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:01:59,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:01:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:01:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:01:59,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:01:59,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636490362] [2024-11-16 11:01:59,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636490362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:01:59,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:01:59,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:01:59,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923282831] [2024-11-16 11:01:59,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:01:59,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:01:59,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:01:59,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:01:59,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:01:59,808 INFO L87 Difference]: Start difference. First operand 1821 states and 2727 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-11-16 11:02:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:02:01,776 INFO L93 Difference]: Finished difference Result 3488 states and 5224 transitions. [2024-11-16 11:02:01,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:02:01,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 101 [2024-11-16 11:02:01,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:02:01,781 INFO L225 Difference]: With dead ends: 3488 [2024-11-16 11:02:01,782 INFO L226 Difference]: Without dead ends: 1836 [2024-11-16 11:02:01,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:02:01,787 INFO L432 NwaCegarLoop]: 1651 mSDtfsCounter, 2533 mSDsluCounter, 4941 mSDsCounter, 0 mSdLazyCounter, 3823 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 6592 SdHoareTripleChecker+Invalid, 3824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:02:01,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2533 Valid, 6592 Invalid, 3824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3823 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 11:02:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2024-11-16 11:02:01,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1834. [2024-11-16 11:02:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.4959083469721768) internal successors, (2742), 1833 states have internal predecessors, (2742), 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) [2024-11-16 11:02:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2742 transitions. [2024-11-16 11:02:01,812 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2742 transitions. Word has length 101 [2024-11-16 11:02:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:02:01,812 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2742 transitions. [2024-11-16 11:02:01,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-11-16 11:02:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2742 transitions. [2024-11-16 11:02:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 11:02:01,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:02:01,813 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:02:01,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 11:02:01,814 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:02:01,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:02:01,814 INFO L85 PathProgramCache]: Analyzing trace with hash -628516413, now seen corresponding path program 1 times [2024-11-16 11:02:01,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:02:01,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604982864] [2024-11-16 11:02:01,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:02:01,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:02:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:02:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:02:02,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:02:02,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604982864] [2024-11-16 11:02:02,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604982864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:02:02,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:02:02,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:02:02,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669243500] [2024-11-16 11:02:02,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:02:02,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:02:02,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:02:02,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:02:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:02:02,573 INFO L87 Difference]: Start difference. First operand 1834 states and 2742 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-11-16 11:02:03,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:02:03,720 INFO L93 Difference]: Finished difference Result 4703 states and 7037 transitions. [2024-11-16 11:02:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:02:03,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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 102 [2024-11-16 11:02:03,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:02:03,727 INFO L225 Difference]: With dead ends: 4703 [2024-11-16 11:02:03,727 INFO L226 Difference]: Without dead ends: 3036 [2024-11-16 11:02:03,728 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 [2024-11-16 11:02:03,729 INFO L432 NwaCegarLoop]: 2157 mSDtfsCounter, 1967 mSDsluCounter, 6344 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 8501 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:02:03,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 8501 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1776 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 11:02:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2024-11-16 11:02:03,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 1829. [2024-11-16 11:02:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1828 states have (on average 1.4961706783369804) internal successors, (2735), 1828 states have internal predecessors, (2735), 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) [2024-11-16 11:02:03,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2735 transitions. [2024-11-16 11:02:03,755 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2735 transitions. Word has length 102 [2024-11-16 11:02:03,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:02:03,755 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 2735 transitions. [2024-11-16 11:02:03,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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) [2024-11-16 11:02:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2735 transitions. [2024-11-16 11:02:03,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 11:02:03,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:02:03,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:02:03,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 11:02:03,757 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:02:03,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:02:03,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1556455852, now seen corresponding path program 1 times [2024-11-16 11:02:03,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:02:03,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353367279] [2024-11-16 11:02:03,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:02:03,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:02:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 11:02:03,793 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 11:02:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 11:02:03,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 11:02:03,882 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 11:02:03,883 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 11:02:03,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 11:02:03,887 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:02:03,959 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 11:02:03,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:02:03 BoogieIcfgContainer [2024-11-16 11:02:03,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 11:02:03,964 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 11:02:03,964 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 11:02:03,964 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 11:02:03,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:01:51" (3/4) ... [2024-11-16 11:02:03,966 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 11:02:03,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 11:02:03,968 INFO L158 Benchmark]: Toolchain (without parser) took 18953.13ms. Allocated memory was 151.0MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 75.5MB in the beginning and 909.1MB in the end (delta: -833.6MB). Peak memory consumption was 197.1MB. Max. memory is 16.1GB. [2024-11-16 11:02:03,968 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 11:02:03,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.24ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 75.5MB in the beginning and 146.1MB in the end (delta: -70.5MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-11-16 11:02:03,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 664.66ms. Allocated memory is still 220.2MB. Free memory was 146.1MB in the beginning and 86.4MB in the end (delta: 59.6MB). Peak memory consumption was 140.8MB. Max. memory is 16.1GB. [2024-11-16 11:02:03,969 INFO L158 Benchmark]: Boogie Preprocessor took 886.08ms. Allocated memory is still 220.2MB. Free memory was 86.4MB in the beginning and 72.8MB in the end (delta: 13.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-16 11:02:03,969 INFO L158 Benchmark]: IcfgBuilder took 4665.42ms. Allocated memory was 220.2MB in the beginning and 658.5MB in the end (delta: 438.3MB). Free memory was 72.8MB in the beginning and 240.1MB in the end (delta: -167.3MB). Peak memory consumption was 274.7MB. Max. memory is 16.1GB. [2024-11-16 11:02:03,970 INFO L158 Benchmark]: TraceAbstraction took 12090.52ms. Allocated memory was 658.5MB in the beginning and 1.2GB in the end (delta: 520.1MB). Free memory was 239.1MB in the beginning and 909.1MB in the end (delta: -670.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 11:02:03,970 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 1.2GB. Free memory is still 909.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 11:02:03,972 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.24ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 75.5MB in the beginning and 146.1MB in the end (delta: -70.5MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 664.66ms. Allocated memory is still 220.2MB. Free memory was 146.1MB in the beginning and 86.4MB in the end (delta: 59.6MB). Peak memory consumption was 140.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 886.08ms. Allocated memory is still 220.2MB. Free memory was 86.4MB in the beginning and 72.8MB in the end (delta: 13.6MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * IcfgBuilder took 4665.42ms. Allocated memory was 220.2MB in the beginning and 658.5MB in the end (delta: 438.3MB). Free memory was 72.8MB in the beginning and 240.1MB in the end (delta: -167.3MB). Peak memory consumption was 274.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12090.52ms. Allocated memory was 658.5MB in the beginning and 1.2GB in the end (delta: 520.1MB). Free memory was 239.1MB in the beginning and 909.1MB in the end (delta: -670.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 1.2GB. Free memory is still 909.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 225. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_16 = 0; [L40] const SORT_4 var_53 = 1; [L41] const SORT_4 var_54 = 0; [L42] const SORT_2 var_66 = 0; [L43] const SORT_2 var_68 = 4; [L44] const SORT_2 var_71 = 3; [L45] const SORT_2 var_74 = 2; [L46] const SORT_2 var_77 = 1; [L47] const SORT_2 var_87 = 255; [L48] const SORT_3 var_91 = 0; [L49] const SORT_4 var_95 = 255; [L51] SORT_1 input_65; [L52] SORT_1 input_67; [L53] SORT_1 input_69; [L54] SORT_1 input_70; [L55] SORT_1 input_72; [L56] SORT_1 input_73; [L57] SORT_1 input_75; [L58] SORT_1 input_76; [L59] SORT_1 input_88; [L60] SORT_1 input_89; [L61] SORT_1 input_90; [L62] SORT_1 input_107; [L63] SORT_1 input_108; [L64] SORT_1 input_123; [L65] SORT_1 input_124; [L66] SORT_1 input_139; [L67] SORT_1 input_140; [L68] SORT_1 input_157; [L69] SORT_1 input_165; [L70] SORT_1 input_173; [L71] SORT_1 input_181; [L72] SORT_1 input_189; [L73] SORT_1 input_197; [L74] SORT_1 input_205; [L75] SORT_1 input_213; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L77] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L78] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L79] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L80] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L81] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L82] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L83] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L84] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L85] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L86] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L87] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L88] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L89] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L90] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L91] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L92] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L93] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L94] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L95] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L96] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L97] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L98] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, var_16=0, var_53=1, var_54=0, var_5=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L99] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_2 init_7_arg_1 = var_5; [L102] state_6 = init_7_arg_1 [L103] SORT_2 init_9_arg_1 = var_5; [L104] state_8 = init_9_arg_1 [L105] SORT_2 init_11_arg_1 = var_5; [L106] state_10 = init_11_arg_1 [L107] SORT_2 init_13_arg_1 = var_5; [L108] state_12 = init_13_arg_1 [L109] SORT_2 init_15_arg_1 = var_5; [L110] state_14 = init_15_arg_1 [L111] SORT_1 init_18_arg_1 = var_16; [L112] state_17 = init_18_arg_1 [L113] SORT_1 init_20_arg_1 = var_16; [L114] state_19 = init_20_arg_1 [L115] SORT_1 init_22_arg_1 = var_16; [L116] state_21 = init_22_arg_1 [L117] SORT_1 init_24_arg_1 = var_16; [L118] state_23 = init_24_arg_1 [L119] SORT_1 init_26_arg_1 = var_16; [L120] state_25 = init_26_arg_1 [L121] SORT_1 init_28_arg_1 = var_16; [L122] state_27 = init_28_arg_1 [L123] SORT_1 init_30_arg_1 = var_16; [L124] state_29 = init_30_arg_1 [L125] SORT_1 init_32_arg_1 = var_16; [L126] state_31 = init_32_arg_1 [L127] SORT_1 init_34_arg_1 = var_16; [L128] state_33 = init_34_arg_1 [L129] SORT_1 init_36_arg_1 = var_16; [L130] state_35 = init_36_arg_1 [L131] SORT_1 init_38_arg_1 = var_16; [L132] state_37 = init_38_arg_1 [L133] SORT_1 init_40_arg_1 = var_16; [L134] state_39 = init_40_arg_1 [L135] SORT_1 init_42_arg_1 = var_16; [L136] state_41 = init_42_arg_1 [L137] SORT_1 init_44_arg_1 = var_16; [L138] state_43 = init_44_arg_1 [L139] SORT_1 init_46_arg_1 = var_16; [L140] state_45 = init_46_arg_1 [L141] SORT_1 init_48_arg_1 = var_16; [L142] state_47 = init_48_arg_1 [L143] SORT_1 init_50_arg_1 = var_16; [L144] state_49 = init_50_arg_1 [L145] SORT_1 init_52_arg_1 = var_16; [L146] state_51 = init_52_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L149] input_65 = __VERIFIER_nondet_uchar() [L150] EXPR input_65 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L150] input_65 = input_65 & mask_SORT_1 [L151] input_67 = __VERIFIER_nondet_uchar() [L152] EXPR input_67 & mask_SORT_1 VAL [input_65=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L152] input_67 = input_67 & mask_SORT_1 [L153] input_69 = __VERIFIER_nondet_uchar() [L154] EXPR input_69 & mask_SORT_1 VAL [input_65=0, input_67=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L154] input_69 = input_69 & mask_SORT_1 [L155] input_70 = __VERIFIER_nondet_uchar() [L156] EXPR input_70 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L156] input_70 = input_70 & mask_SORT_1 [L157] input_72 = __VERIFIER_nondet_uchar() [L158] EXPR input_72 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L158] input_72 = input_72 & mask_SORT_1 [L159] input_73 = __VERIFIER_nondet_uchar() [L160] EXPR input_73 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L160] input_73 = input_73 & mask_SORT_1 [L161] input_75 = __VERIFIER_nondet_uchar() [L162] EXPR input_75 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L162] input_75 = input_75 & mask_SORT_1 [L163] input_76 = __VERIFIER_nondet_uchar() [L164] EXPR input_76 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L164] input_76 = input_76 & mask_SORT_1 [L165] input_88 = __VERIFIER_nondet_uchar() [L166] EXPR input_88 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L166] input_88 = input_88 & mask_SORT_1 [L167] input_89 = __VERIFIER_nondet_uchar() [L168] EXPR input_89 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L168] input_89 = input_89 & mask_SORT_1 [L169] input_90 = __VERIFIER_nondet_uchar() [L170] EXPR input_90 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L170] input_90 = input_90 & mask_SORT_1 [L171] input_107 = __VERIFIER_nondet_uchar() [L172] EXPR input_107 & mask_SORT_1 VAL [input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L172] input_107 = input_107 & mask_SORT_1 [L173] input_108 = __VERIFIER_nondet_uchar() [L174] EXPR input_108 & mask_SORT_1 VAL [input_107=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L174] input_108 = input_108 & mask_SORT_1 [L175] input_123 = __VERIFIER_nondet_uchar() [L176] EXPR input_123 & mask_SORT_1 VAL [input_107=0, input_108=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L176] input_123 = input_123 & mask_SORT_1 [L177] input_124 = __VERIFIER_nondet_uchar() [L178] EXPR input_124 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L178] input_124 = input_124 & mask_SORT_1 [L179] input_139 = __VERIFIER_nondet_uchar() [L180] EXPR input_139 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L180] input_139 = input_139 & mask_SORT_1 [L181] input_140 = __VERIFIER_nondet_uchar() [L182] EXPR input_140 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L182] input_140 = input_140 & mask_SORT_1 [L183] input_157 = __VERIFIER_nondet_uchar() [L184] input_165 = __VERIFIER_nondet_uchar() [L185] input_173 = __VERIFIER_nondet_uchar() [L186] input_181 = __VERIFIER_nondet_uchar() [L187] input_189 = __VERIFIER_nondet_uchar() [L188] input_197 = __VERIFIER_nondet_uchar() [L189] input_205 = __VERIFIER_nondet_uchar() [L190] input_213 = __VERIFIER_nondet_uchar() [L193] SORT_1 var_55_arg_0 = state_25; [L194] SORT_4 var_55_arg_1 = var_53; [L195] SORT_4 var_55_arg_2 = var_54; [L196] SORT_4 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L197] SORT_1 var_56_arg_0 = state_33; [L198] SORT_4 var_56_arg_1 = var_53; [L199] SORT_4 var_56_arg_2 = var_54; [L200] SORT_4 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L201] SORT_4 var_57_arg_0 = var_55; [L202] SORT_4 var_57_arg_1 = var_56; [L203] SORT_4 var_57 = var_57_arg_0 + var_57_arg_1; [L204] SORT_1 var_58_arg_0 = state_41; [L205] SORT_4 var_58_arg_1 = var_53; [L206] SORT_4 var_58_arg_2 = var_54; [L207] SORT_4 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L208] SORT_4 var_59_arg_0 = var_57; [L209] SORT_4 var_59_arg_1 = var_58; [L210] SORT_4 var_59 = var_59_arg_0 + var_59_arg_1; [L211] SORT_1 var_60_arg_0 = state_49; [L212] SORT_4 var_60_arg_1 = var_53; [L213] SORT_4 var_60_arg_2 = var_54; [L214] SORT_4 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L215] SORT_4 var_61_arg_0 = var_59; [L216] SORT_4 var_61_arg_1 = var_60; [L217] SORT_4 var_61 = var_61_arg_0 + var_61_arg_1; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_61=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L218] EXPR var_61 & mask_SORT_4 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L218] var_61 = var_61 & mask_SORT_4 [L219] SORT_4 var_62_arg_0 = var_61; [L220] SORT_4 var_62_arg_1 = var_53; [L221] SORT_1 var_62 = var_62_arg_0 <= var_62_arg_1; [L222] SORT_1 var_63_arg_0 = ~state_51; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_62=1, var_63_arg_0=-1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L223] EXPR var_63_arg_0 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_62=1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L223] var_63_arg_0 = var_63_arg_0 & mask_SORT_1 [L224] SORT_1 var_63_arg_1 = ~var_62; VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_63_arg_0=1, var_63_arg_1=-2, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L225] EXPR var_63_arg_1 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_63_arg_0=1, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L225] var_63_arg_1 = var_63_arg_1 & mask_SORT_1 [L226] EXPR var_63_arg_0 & var_63_arg_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L226] SORT_1 var_63 = var_63_arg_0 & var_63_arg_1; [L227] EXPR var_63 & mask_SORT_1 VAL [input_107=0, input_108=0, input_123=0, input_124=0, input_139=0, input_140=0, input_65=0, input_67=0, input_69=0, input_70=0, input_72=0, input_73=0, input_75=0, input_76=0, input_88=0, input_89=0, input_90=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_6=0, state_8=0, var_53=1, var_54=0, var_66=0, var_68=4, var_71=3, var_74=2, var_77=1, var_87=255, var_91=0, var_95=255] [L227] var_63 = var_63 & mask_SORT_1 [L228] SORT_1 bad_64_arg_0 = var_63; [L229] CALL __VERIFIER_assert(!(bad_64_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1741 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7004 SdHoareTripleChecker+Valid, 7.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7004 mSDsluCounter, 47696 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33535 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14518 IncrementalHoareTripleChecker+Invalid, 14521 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14161 mSDtfsCounter, 14518 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1834occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 2774 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 795 NumberOfCodeBlocks, 795 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 686 ConstructedInterpolants, 0 QuantifiedInterpolants, 2581 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 [2024-11-16 11:02:04,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.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 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:02:06,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:02:06,243 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-16 11:02:06,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:02:06,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:02:06,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:02:06,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:02:06,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:02:06,267 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:02:06,267 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:02:06,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:02:06,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:02:06,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:02:06,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:02:06,269 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:02:06,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:02:06,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:02:06,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:02:06,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:02:06,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:02:06,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:02:06,271 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 11:02:06,271 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 11:02:06,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:02:06,271 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 11:02:06,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:02:06,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:02:06,272 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:02:06,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:02:06,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:02:06,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:02:06,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:02:06,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:02:06,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:02:06,274 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:02:06,274 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 11:02:06,274 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 11:02:06,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:02:06,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:02:06,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:02:06,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:02:06,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77ee3c12bce0e0c115e8aa14d1707fe352f16b7764cd43525551553c3df84286 [2024-11-16 11:02:06,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:02:06,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:02:06,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:02:06,595 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:02:06,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:02:06,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-16 11:02:08,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:02:08,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:02:08,344 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-16 11:02:08,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc17174d5/e8cb47f0b15747f6b57822010e2eec5b/FLAGea3510f37 [2024-11-16 11:02:08,369 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc17174d5/e8cb47f0b15747f6b57822010e2eec5b [2024-11-16 11:02:08,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:02:08,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:02:08,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:02:08,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:02:08,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:02:08,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:08,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7491b6f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08, skipping insertion in model container [2024-11-16 11:02:08,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:08,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:02:08,602 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.fischer.2.prop1-func-interl.c[1174,1187] [2024-11-16 11:02:08,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:02:08,853 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:02:08,863 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.fischer.2.prop1-func-interl.c[1174,1187] [2024-11-16 11:02:08,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:02:08,988 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:02:08,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08 WrapperNode [2024-11-16 11:02:08,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:02:08,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:02:08,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:02:08,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:02:08,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,091 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1499 [2024-11-16 11:02:09,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:02:09,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:02:09,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:02:09,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:02:09,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,110 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,131 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]. [2024-11-16 11:02:09,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,153 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:02:09,173 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:02:09,173 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:02:09,173 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:02:09,174 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (1/1) ... [2024-11-16 11:02:09,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:02:09,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:02:09,213 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) [2024-11-16 11:02:09,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 11:02:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:02:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 11:02:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:02:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:02:09,607 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:02:09,609 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:02:10,603 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-16 11:02:10,603 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:02:10,614 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:02:10,614 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:02:10,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:02:10 BoogieIcfgContainer [2024-11-16 11:02:10,615 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:02:10,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:02:10,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:02:10,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:02:10,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:02:08" (1/3) ... [2024-11-16 11:02:10,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db1f399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:02:10, skipping insertion in model container [2024-11-16 11:02:10,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:02:08" (2/3) ... [2024-11-16 11:02:10,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db1f399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:02:10, skipping insertion in model container [2024-11-16 11:02:10,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:02:10" (3/3) ... [2024-11-16 11:02:10,624 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.2.prop1-func-interl.c [2024-11-16 11:02:10,636 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:02:10,636 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:02:10,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:02:10,688 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;@4d0735a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:02:10,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:02:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 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) [2024-11-16 11:02:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-16 11:02:10,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:02:10,696 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-16 11:02:10,697 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:02:10,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:02:10,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1271070717, now seen corresponding path program 1 times [2024-11-16 11:02:10,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 11:02:10,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974146827] [2024-11-16 11:02:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:02:10,712 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 [2024-11-16 11:02:10,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 11:02:10,714 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) [2024-11-16 11:02:10,717 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 [2024-11-16 11:02:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:02:10,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-16 11:02:10,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 11:02:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:02:11,312 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 11:02:11,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 11:02:11,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974146827] [2024-11-16 11:02:11,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974146827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:02:11,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:02:11,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:02:11,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726902595] [2024-11-16 11:02:11,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:02:11,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:02:11,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 11:02:11,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:02:11,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:02:11,339 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-16 11:02:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:02:11,441 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2024-11-16 11:02:11,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:02:11,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2024-11-16 11:02:11,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:02:11,448 INFO L225 Difference]: With dead ends: 22 [2024-11-16 11:02:11,448 INFO L226 Difference]: Without dead ends: 11 [2024-11-16 11:02:11,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:02:11,454 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:02:11,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:02:11,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-16 11:02:11,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-16 11:02:11,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2024-11-16 11:02:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-16 11:02:11,476 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2024-11-16 11:02:11,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:02:11,476 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-16 11:02:11,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-16 11:02:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-16 11:02:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-16 11:02:11,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:02:11,477 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:02:11,481 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 [2024-11-16 11:02:11,677 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 [2024-11-16 11:02:11,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:02:11,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:02:11,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2061110753, now seen corresponding path program 1 times [2024-11-16 11:02:11,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 11:02:11,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801164894] [2024-11-16 11:02:11,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:02:11,679 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 [2024-11-16 11:02:11,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 11:02:11,682 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) [2024-11-16 11:02:11,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-16 11:02:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:02:12,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-16 11:02:12,127 INFO L278 TraceCheckSpWp]: Computing forward predicates...