/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 20:52:42,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 20:52:42,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 20:52:42,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 20:52:42,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 20:52:42,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 20:52:42,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 20:52:42,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 20:52:42,585 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 20:52:42,585 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 20:52:42,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 20:52:42,586 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 20:52:42,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 20:52:42,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 20:52:42,590 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 20:52:42,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 20:52:42,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 20:52:42,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 20:52:42,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 20:52:42,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 20:52:42,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 20:52:42,595 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 20:52:42,595 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 20:52:42,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 20:52:42,596 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 20:52:42,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 20:52:42,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 20:52:42,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 20:52:42,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 20:52:42,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 20:52:42,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 20:52:42,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 20:52:42,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 20:52:42,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 20:52:42,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 20:52:42,599 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 20:52:42,599 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 20:52:42,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 20:52:42,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 20:52:42,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 20:52:42,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 20:52:42,601 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 20:52:42,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 20:52:42,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 20:52:42,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 20:52:42,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 20:52:42,928 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 20:52:42,929 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 20:52:42,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal12.c [2024-11-01 20:52:44,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 20:52:44,544 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 20:52:44,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal12.c [2024-11-01 20:52:44,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c80c0ec4/a77128ac94944f8d816cda60b153e987/FLAGf6a91d616 [2024-11-01 20:52:44,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c80c0ec4/a77128ac94944f8d816cda60b153e987 [2024-11-01 20:52:44,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 20:52:44,578 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 20:52:44,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 20:52:44,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 20:52:44,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 20:52:44,583 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:44,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767b7269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44, skipping insertion in model container [2024-11-01 20:52:44,584 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:44,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 20:52:44,793 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal12.c[1245,1258] [2024-11-01 20:52:44,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 20:52:44,865 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 20:52:44,881 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal12.c[1245,1258] [2024-11-01 20:52:44,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 20:52:44,944 INFO L204 MainTranslator]: Completed translation [2024-11-01 20:52:44,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44 WrapperNode [2024-11-01 20:52:44,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 20:52:44,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 20:52:44,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 20:52:44,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 20:52:44,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:44,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,002 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 176 [2024-11-01 20:52:45,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 20:52:45,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 20:52:45,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 20:52:45,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 20:52:45,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,020 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,036 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-01 20:52:45,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 20:52:45,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 20:52:45,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 20:52:45,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 20:52:45,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (1/1) ... [2024-11-01 20:52:45,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 20:52:45,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 20:52:45,092 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) [2024-11-01 20:52:45,095 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 [2024-11-01 20:52:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 20:52:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 20:52:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 20:52:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 20:52:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 20:52:45,207 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 20:52:45,212 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 20:52:45,514 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-01 20:52:45,514 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 20:52:45,528 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 20:52:45,531 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 20:52:45,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 08:52:45 BoogieIcfgContainer [2024-11-01 20:52:45,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 20:52:45,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 20:52:45,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 20:52:45,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 20:52:45,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 08:52:44" (1/3) ... [2024-11-01 20:52:45,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70197360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 08:52:45, skipping insertion in model container [2024-11-01 20:52:45,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 08:52:44" (2/3) ... [2024-11-01 20:52:45,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70197360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 08:52:45, skipping insertion in model container [2024-11-01 20:52:45,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 08:52:45" (3/3) ... [2024-11-01 20:52:45,541 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal12.c [2024-11-01 20:52:45,557 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 20:52:45,557 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 20:52:45,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 20:52:45,624 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;@2ccdb57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 20:52:45,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 20:52:45,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 20:52:45,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 20:52:45,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 20:52:45,638 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 20:52:45,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 20:52:45,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 20:52:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 20:52:45,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 20:52:45,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788845174] [2024-11-01 20:52:45,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 20:52:45,657 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 20:52:45,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 20:52:45,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 20:52:45,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 20:52:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 20:52:45,790 WARN L253 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-01 20:52:45,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 20:52:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 20:52:46,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 20:52:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 20:52:46,452 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 20:52:46,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788845174] [2024-11-01 20:52:46,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1788845174] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 20:52:46,453 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 20:52:46,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 20:52:46,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400363738] [2024-11-01 20:52:46,457 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 20:52:46,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 20:52:46,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 20:52:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 20:52:46,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 20:52:46,490 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-01 20:52:46,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 20:52:46,562 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-01 20:52:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-01 20:52:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-01 20:52:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 20:52:46,571 INFO L225 Difference]: With dead ends: 18 [2024-11-01 20:52:46,572 INFO L226 Difference]: Without dead ends: 10 [2024-11-01 20:52:46,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-01 20:52:46,580 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 20:52:46,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 20:52:46,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-01 20:52:46,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-01 20:52:46,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 20:52:46,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 20:52:46,614 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 20:52:46,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 20:52:46,614 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 20:52:46,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-01 20:52:46,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 20:52:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 20:52:46,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 20:52:46,615 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 20:52:46,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-01 20:52:46,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 20:52:46,818 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 20:52:46,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 20:52:46,819 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 20:52:46,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 20:52:46,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640928451] [2024-11-01 20:52:46,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 20:52:46,820 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 20:52:46,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 20:52:46,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 20:52:46,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 20:52:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 20:52:46,950 WARN L253 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-01 20:52:46,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 20:52:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 20:52:49,141 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 20:52:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 20:52:58,769 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 20:52:58,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640928451] [2024-11-01 20:52:58,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1640928451] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 20:52:58,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 20:52:58,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2024-11-01 20:52:58,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987937687] [2024-11-01 20:52:58,770 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 20:52:58,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-01 20:52:58,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 20:52:58,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-01 20:52:58,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-01 20:52:58,772 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-11-01 20:52:59,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 20:52:59,070 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-11-01 20:52:59,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 20:52:59,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-01 20:52:59,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 20:52:59,071 INFO L225 Difference]: With dead ends: 17 [2024-11-01 20:52:59,071 INFO L226 Difference]: Without dead ends: 15 [2024-11-01 20:52:59,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-01 20:52:59,073 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 20:52:59,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 20:52:59,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-01 20:52:59,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-01 20:52:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 20:52:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-01 20:52:59,077 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-01 20:52:59,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 20:52:59,077 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-01 20:52:59,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-11-01 20:52:59,077 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-01 20:52:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-01 20:52:59,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 20:52:59,078 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-01 20:52:59,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-01 20:52:59,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 20:52:59,279 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 20:52:59,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 20:52:59,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 2 times [2024-11-01 20:52:59,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 20:52:59,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88801920] [2024-11-01 20:52:59,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 20:52:59,280 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 20:52:59,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 20:52:59,282 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 20:52:59,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-01 20:52:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 20:52:59,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-01 20:52:59,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 20:53:01,422 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-01 20:53:01,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 20:53:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-01 20:53:08,877 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 20:53:08,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88801920] [2024-11-01 20:53:08,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [88801920] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 20:53:08,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 20:53:08,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2024-11-01 20:53:08,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710305160] [2024-11-01 20:53:08,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 20:53:08,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-01 20:53:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 20:53:08,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-01 20:53:08,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-01 20:53:08,880 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 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) [2024-11-01 20:53:09,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 20:53:09,092 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-01 20:53:09,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-01 20:53:09,092 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 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 14 [2024-11-01 20:53:09,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 20:53:09,093 INFO L225 Difference]: With dead ends: 15 [2024-11-01 20:53:09,093 INFO L226 Difference]: Without dead ends: 0 [2024-11-01 20:53:09,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-01 20:53:09,094 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 20:53:09,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 20:53:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-01 20:53:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-01 20:53:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-01 20:53:09,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-01 20:53:09,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-01 20:53:09,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 20:53:09,096 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-01 20:53:09,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 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) [2024-11-01 20:53:09,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-01 20:53:09,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-01 20:53:09,099 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 20:53:09,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-01 20:53:09,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 20:53:09,302 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-01 20:53:09,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-01 20:53:09,448 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 20:53:09,464 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-01 20:53:09,465 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-01 20:53:09,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 08:53:09 BoogieIcfgContainer [2024-11-01 20:53:09,469 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 20:53:09,470 INFO L158 Benchmark]: Toolchain (without parser) took 24892.11ms. Allocated memory was 185.6MB in the beginning and 940.6MB in the end (delta: 755.0MB). Free memory was 142.5MB in the beginning and 513.5MB in the end (delta: -371.1MB). Peak memory consumption was 385.0MB. Max. memory is 8.0GB. [2024-11-01 20:53:09,470 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory was 161.6MB in the beginning and 161.4MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 20:53:09,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.28ms. Allocated memory is still 185.6MB. Free memory was 142.5MB in the beginning and 126.2MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-01 20:53:09,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.71ms. Allocated memory is still 185.6MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-01 20:53:09,471 INFO L158 Benchmark]: Boogie Preprocessor took 48.24ms. Allocated memory is still 185.6MB. Free memory was 124.1MB in the beginning and 121.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-01 20:53:09,471 INFO L158 Benchmark]: RCFGBuilder took 478.84ms. Allocated memory is still 185.6MB. Free memory was 121.5MB in the beginning and 99.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2024-11-01 20:53:09,472 INFO L158 Benchmark]: TraceAbstraction took 23935.34ms. Allocated memory was 185.6MB in the beginning and 940.6MB in the end (delta: 755.0MB). Free memory was 99.0MB in the beginning and 513.5MB in the end (delta: -414.6MB). Peak memory consumption was 342.0MB. Max. memory is 8.0GB. [2024-11-01 20:53:09,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory was 161.6MB in the beginning and 161.4MB in the end (delta: 152.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 366.28ms. Allocated memory is still 185.6MB. Free memory was 142.5MB in the beginning and 126.2MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.71ms. Allocated memory is still 185.6MB. Free memory was 126.2MB in the beginning and 124.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.24ms. Allocated memory is still 185.6MB. Free memory was 124.1MB in the beginning and 121.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 478.84ms. Allocated memory is still 185.6MB. Free memory was 121.5MB in the beginning and 99.5MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 23935.34ms. Allocated memory was 185.6MB in the beginning and 940.6MB in the end (delta: 755.0MB). Free memory was 99.0MB in the beginning and 513.5MB in the end (delta: -414.6MB). Peak memory consumption was 342.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.7s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 10 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 24 QuantifiedInterpolants, 12609 SizeOfPredicates, 29 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 5/34 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (((((((((((0 == state_21) && (0 == state_17)) && (0 == var_10)) && (1 == var_29)) && (1 == var_39)) && (0 == state_11)) && (0 == var_14)) && (0 == state_15)) && (1 == mask_SORT_1)) || (((((((1 == state_17) && (0 == var_10)) && (1 == var_29)) && (1 == var_39)) && (0 == var_14)) && (1 == mask_SORT_1)) && (1 == state_11))) || (((((((0 == state_17) && (0 == var_10)) && (1 == var_29)) && (1 == var_39)) && (0 == var_14)) && (1 == mask_SORT_1)) && (1 == state_11))) RESULT: Ultimate proved your program to be correct! [2024-11-01 20:53:09,522 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...