/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-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 13:13:21,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 13:13:21,205 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 13:13:21,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 13:13:21,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 13:13:21,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 13:13:21,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 13:13:21,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 13:13:21,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 13:13:21,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 13:13:21,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 13:13:21,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 13:13:21,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 13:13:21,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 13:13:21,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 13:13:21,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 13:13:21,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 13:13:21,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 13:13:21,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 13:13:21,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 13:13:21,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 13:13:21,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 13:13:21,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 13:13:21,243 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 13:13:21,243 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 13:13:21,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 13:13:21,243 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 13:13:21,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 13:13:21,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 13:13:21,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 13:13:21,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 13:13:21,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 13:13:21,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 13:13:21,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 13:13:21,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:13:21,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 13:13:21,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 13:13:21,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 13:13:21,246 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 13:13:21,246 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 13:13:21,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 13:13:21,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 13:13:21,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 13:13:21,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 13:13:21,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 13:13:21,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 13:13:21,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 13:13:21,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 13:13:21,551 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 13:13:21,551 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 13:13:21,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-3.i [2024-11-03 13:13:22,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 13:13:23,122 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 13:13:23,123 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-3.i [2024-11-03 13:13:23,135 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af79afe34/2f107d30a2c74758902cc2532261028b/FLAG319c0003c [2024-11-03 13:13:23,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af79afe34/2f107d30a2c74758902cc2532261028b [2024-11-03 13:13:23,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 13:13:23,498 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 13:13:23,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 13:13:23,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 13:13:23,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 13:13:23,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:13:23" (1/1) ... [2024-11-03 13:13:23,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250e9213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:23, skipping insertion in model container [2024-11-03 13:13:23,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:13:23" (1/1) ... [2024-11-03 13:13:23,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 13:13:23,717 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-3.i[915,928] [2024-11-03 13:13:23,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:13:23,882 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 13:13:23,891 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-3.i[915,928] [2024-11-03 13:13:24,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:13:24,030 INFO L204 MainTranslator]: Completed translation [2024-11-03 13:13:24,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24 WrapperNode [2024-11-03 13:13:24,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 13:13:24,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 13:13:24,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 13:13:24,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 13:13:24,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,100 INFO L138 Inliner]: procedures = 27, calls = 85, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 569 [2024-11-03 13:13:24,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 13:13:24,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 13:13:24,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 13:13:24,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 13:13:24,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,116 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,170 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]. [2024-11-03 13:13:24,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,204 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 13:13:24,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 13:13:24,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 13:13:24,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 13:13:24,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (1/1) ... [2024-11-03 13:13:24,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:13:24,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 13:13:24,273 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) [2024-11-03 13:13:24,275 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 [2024-11-03 13:13:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 13:13:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 13:13:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 13:13:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 13:13:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 13:13:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 13:13:24,420 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 13:13:24,422 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 13:14:46,011 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-03 13:14:46,012 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 13:14:46,038 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 13:14:46,039 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 13:14:46,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:14:46 BoogieIcfgContainer [2024-11-03 13:14:46,039 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 13:14:46,043 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 13:14:46,043 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 13:14:46,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 13:14:46,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:13:23" (1/3) ... [2024-11-03 13:14:46,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb2f3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:14:46, skipping insertion in model container [2024-11-03 13:14:46,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:13:24" (2/3) ... [2024-11-03 13:14:46,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb2f3a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:14:46, skipping insertion in model container [2024-11-03 13:14:46,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:14:46" (3/3) ... [2024-11-03 13:14:46,050 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-3.i [2024-11-03 13:14:46,065 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 13:14:46,066 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 13:14:46,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 13:14:46,149 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;@6a2f7acd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 13:14:46,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 13:14:46,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 156 states have (on average 1.5705128205128205) internal successors, (245), 157 states have internal predecessors, (245), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-03 13:14:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-03 13:14:46,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:14:46,206 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:14:46,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:14:46,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:14:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1144105646, now seen corresponding path program 1 times [2024-11-03 13:14:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:14:46,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602645124] [2024-11-03 13:14:46,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:14:46,221 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:14:46,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:14:46,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:14:46,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 13:14:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:14:46,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 13:14:46,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:14:46,511 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-03 13:14:46,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:15:05,836 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-03 13:15:05,837 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:15:05,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602645124] [2024-11-03 13:15:05,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1602645124] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:15:05,840 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:15:05,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 13:15:05,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166782435] [2024-11-03 13:15:05,842 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:15:05,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 13:15:05,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:15:05,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 13:15:05,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 13:15:05,874 INFO L87 Difference]: Start difference. First operand has 231 states, 156 states have (on average 1.5705128205128205) internal successors, (245), 157 states have internal predecessors, (245), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (72), 1 states have call predecessors, (72), 2 states have return successors, (72), 2 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-03 13:15:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:15:05,928 INFO L93 Difference]: Finished difference Result 455 states and 844 transitions. [2024-11-03 13:15:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 13:15:05,930 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (72), 1 states have call predecessors, (72), 2 states have return successors, (72), 2 states have call predecessors, (72), 1 states have call successors, (72) Word has length 469 [2024-11-03 13:15:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:15:05,938 INFO L225 Difference]: With dead ends: 455 [2024-11-03 13:15:05,938 INFO L226 Difference]: Without dead ends: 227 [2024-11-03 13:15:05,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 936 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 13:15:05,944 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:15:05,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:15:05,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-03 13:15:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-03 13:15:05,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 153 states have (on average 1.542483660130719) internal successors, (236), 153 states have internal predecessors, (236), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-03 13:15:06,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 380 transitions. [2024-11-03 13:15:06,003 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 380 transitions. Word has length 469 [2024-11-03 13:15:06,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:15:06,004 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 380 transitions. [2024-11-03 13:15:06,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 1 states have call successors, (72), 1 states have call predecessors, (72), 2 states have return successors, (72), 2 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-03 13:15:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 380 transitions. [2024-11-03 13:15:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-11-03 13:15:06,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:15:06,012 INFO L215 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:15:06,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 13:15:06,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:15:06,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:15:06,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:15:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash 136312066, now seen corresponding path program 1 times [2024-11-03 13:15:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:15:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939704209] [2024-11-03 13:15:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:15:06,217 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:15:06,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:15:06,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:15:06,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 13:15:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:15:06,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 13:15:06,510 INFO L278 TraceCheckSpWp]: Computing forward predicates...