/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-48.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 00:34:55,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 00:34:55,212 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 00:34:55,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 00:34:55,216 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 00:34:55,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 00:34:55,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 00:34:55,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 00:34:55,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 00:34:55,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 00:34:55,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 00:34:55,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 00:34:55,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 00:34:55,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 00:34:55,238 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 00:34:55,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 00:34:55,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 00:34:55,239 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 00:34:55,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 00:34:55,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 00:34:55,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 00:34:55,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 00:34:55,240 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 00:34:55,240 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 00:34:55,241 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 00:34:55,241 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 00:34:55,241 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 00:34:55,241 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 00:34:55,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 00:34:55,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 00:34:55,242 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 00:34:55,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 00:34:55,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 00:34:55,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 00:34:55,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 00:34:55,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 00:34:55,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 00:34:55,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 00:34:55,245 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 00:34:55,245 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 00:34:55,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 00:34:55,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 00:34:55,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 00:34:55,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 00:34:55,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 00:34:55,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 00:34:55,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 00:34:55,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 00:34:55,491 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 00:34:55,492 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 00:34:55,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-48.i [2024-11-03 00:34:56,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 00:34:57,133 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 00:34:57,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-48.i [2024-11-03 00:34:57,145 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41329380/5291d73159604c0e936c50657ae0bdbf/FLAG42966b05e [2024-11-03 00:34:57,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41329380/5291d73159604c0e936c50657ae0bdbf [2024-11-03 00:34:57,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 00:34:57,167 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 00:34:57,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 00:34:57,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 00:34:57,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 00:34:57,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6cce3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57, skipping insertion in model container [2024-11-03 00:34:57,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 00:34:57,373 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_floatingpointinfluence_has-floats_file-48.i[917,930] [2024-11-03 00:34:57,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 00:34:57,429 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 00:34:57,438 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_floatingpointinfluence_has-floats_file-48.i[917,930] [2024-11-03 00:34:57,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 00:34:57,482 INFO L204 MainTranslator]: Completed translation [2024-11-03 00:34:57,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57 WrapperNode [2024-11-03 00:34:57,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 00:34:57,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 00:34:57,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 00:34:57,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 00:34:57,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,522 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2024-11-03 00:34:57,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 00:34:57,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 00:34:57,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 00:34:57,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 00:34:57,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,538 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,550 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 00:34:57,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 00:34:57,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 00:34:57,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 00:34:57,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 00:34:57,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (1/1) ... [2024-11-03 00:34:57,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 00:34:57,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 00:34:57,608 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 00:34:57,610 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 00:34:57,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 00:34:57,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 00:34:57,631 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 00:34:57,631 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 00:34:57,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 00:34:57,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 00:34:57,700 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 00:34:57,702 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 00:34:58,261 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-03 00:34:58,262 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 00:34:58,274 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 00:34:58,274 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 00:34:58,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:34:58 BoogieIcfgContainer [2024-11-03 00:34:58,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 00:34:58,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 00:34:58,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 00:34:58,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 00:34:58,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:34:57" (1/3) ... [2024-11-03 00:34:58,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ff2c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:34:58, skipping insertion in model container [2024-11-03 00:34:58,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:34:57" (2/3) ... [2024-11-03 00:34:58,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ff2c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:34:58, skipping insertion in model container [2024-11-03 00:34:58,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:34:58" (3/3) ... [2024-11-03 00:34:58,286 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-48.i [2024-11-03 00:34:58,298 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 00:34:58,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 00:34:58,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 00:34:58,359 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;@23423893, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 00:34:58,359 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 00:34:58,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-03 00:34:58,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-03 00:34:58,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:34:58,379 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:58,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:34:58,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:34:58,387 INFO L85 PathProgramCache]: Analyzing trace with hash -626773759, now seen corresponding path program 1 times [2024-11-03 00:34:58,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:34:58,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689129850] [2024-11-03 00:34:58,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:34:58,398 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:34:58,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:34:58,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:34:58,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 00:34:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:34:58,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 00:34:58,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:34:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-03 00:34:58,773 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:34:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-03 00:34:58,933 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:34:58,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689129850] [2024-11-03 00:34:58,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1689129850] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:34:58,935 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:34:58,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 00:34:58,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210853773] [2024-11-03 00:34:58,938 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:34:58,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 00:34:58,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:34:58,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 00:34:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 00:34:58,971 INFO L87 Difference]: Start difference. First operand has 59 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-03 00:34:58,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:34:58,995 INFO L93 Difference]: Finished difference Result 111 states and 189 transitions. [2024-11-03 00:34:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 00:34:58,997 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2024-11-03 00:34:58,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:34:59,007 INFO L225 Difference]: With dead ends: 111 [2024-11-03 00:34:59,008 INFO L226 Difference]: Without dead ends: 55 [2024-11-03 00:34:59,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 260 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 00:34:59,017 INFO L432 NwaCegarLoop]: 79 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, 79 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 00:34:59,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 00:34:59,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-03 00:34:59,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-03 00:34:59,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.15625) internal successors, (37), 32 states have internal predecessors, (37), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-03 00:34:59,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2024-11-03 00:34:59,065 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 131 [2024-11-03 00:34:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:34:59,065 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2024-11-03 00:34:59,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 1 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-03 00:34:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2024-11-03 00:34:59,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-03 00:34:59,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:34:59,069 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:59,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 00:34:59,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:34:59,270 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:34:59,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:34:59,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2128434103, now seen corresponding path program 1 times [2024-11-03 00:34:59,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:34:59,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405860099] [2024-11-03 00:34:59,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:34:59,272 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:34:59,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:34:59,274 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:34:59,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 00:34:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:34:59,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 00:34:59,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:34:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-03 00:34:59,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:35:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-03 00:35:00,190 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:35:00,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405860099] [2024-11-03 00:35:00,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1405860099] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:35:00,190 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:35:00,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2024-11-03 00:35:00,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720342538] [2024-11-03 00:35:00,191 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:35:00,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 00:35:00,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:35:00,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 00:35:00,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-03 00:35:00,197 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-03 00:35:01,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:35:01,035 INFO L93 Difference]: Finished difference Result 233 states and 325 transitions. [2024-11-03 00:35:01,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-03 00:35:01,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 131 [2024-11-03 00:35:01,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:35:01,041 INFO L225 Difference]: With dead ends: 233 [2024-11-03 00:35:01,042 INFO L226 Difference]: Without dead ends: 181 [2024-11-03 00:35:01,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2024-11-03 00:35:01,044 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 195 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 00:35:01,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 205 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 00:35:01,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-03 00:35:01,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 60. [2024-11-03 00:35:01,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-03 00:35:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2024-11-03 00:35:01,075 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 131 [2024-11-03 00:35:01,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:35:01,076 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2024-11-03 00:35:01,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-03 00:35:01,076 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2024-11-03 00:35:01,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-03 00:35:01,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:35:01,079 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:01,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 00:35:01,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:35:01,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:35:01,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:35:01,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2109274891, now seen corresponding path program 1 times [2024-11-03 00:35:01,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:35:01,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159916578] [2024-11-03 00:35:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:35:01,282 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:35:01,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:35:01,283 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:35:01,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 00:35:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:35:01,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-03 00:35:01,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:35:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 522 proven. 60 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-03 00:35:06,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:35:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 12 proven. 48 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-03 00:35:11,143 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:35:11,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159916578] [2024-11-03 00:35:11,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1159916578] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 00:35:11,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 00:35:11,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 23 [2024-11-03 00:35:11,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663662097] [2024-11-03 00:35:11,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 00:35:11,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-03 00:35:11,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:35:11,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-03 00:35:11,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2024-11-03 00:35:11,146 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-03 00:35:15,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:35:15,965 INFO L93 Difference]: Finished difference Result 166 states and 216 transitions. [2024-11-03 00:35:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-03 00:35:15,967 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 131 [2024-11-03 00:35:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:35:15,969 INFO L225 Difference]: With dead ends: 166 [2024-11-03 00:35:15,969 INFO L226 Difference]: Without dead ends: 109 [2024-11-03 00:35:15,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2024-11-03 00:35:15,972 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 152 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-03 00:35:15,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 427 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-03 00:35:15,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-03 00:35:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 74. [2024-11-03 00:35:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 47 states have internal predecessors, (51), 21 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-03 00:35:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2024-11-03 00:35:16,008 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 131 [2024-11-03 00:35:16,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:35:16,011 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2024-11-03 00:35:16,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (37), 3 states have call predecessors, (37), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-03 00:35:16,011 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2024-11-03 00:35:16,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-03 00:35:16,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:35:16,013 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:16,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-03 00:35:16,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:35:16,214 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:35:16,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:35:16,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1196725432, now seen corresponding path program 1 times [2024-11-03 00:35:16,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:35:16,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905327604] [2024-11-03 00:35:16,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:35:16,216 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:35:16,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:35:16,218 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:35:16,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 00:35:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:35:16,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 00:35:16,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:35:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-03 00:35:16,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:35:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-03 00:35:16,781 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:35:16,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905327604] [2024-11-03 00:35:16,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [905327604] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:35:16,784 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:35:16,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2024-11-03 00:35:16,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960792486] [2024-11-03 00:35:16,784 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:35:16,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 00:35:16,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:35:16,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 00:35:16,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 00:35:16,786 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-03 00:35:17,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:35:17,272 INFO L93 Difference]: Finished difference Result 211 states and 267 transitions. [2024-11-03 00:35:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 00:35:17,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 132 [2024-11-03 00:35:17,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:35:17,274 INFO L225 Difference]: With dead ends: 211 [2024-11-03 00:35:17,274 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 00:35:17,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-11-03 00:35:17,276 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 83 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 00:35:17,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 231 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 00:35:17,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 00:35:17,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 00:35:17,277 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) [2024-11-03 00:35:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 00:35:17,278 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 132 [2024-11-03 00:35:17,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:35:17,278 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 00:35:17,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-03 00:35:17,278 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 00:35:17,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 00:35:17,281 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 00:35:17,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 00:35:17,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:35:17,484 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-03 00:35:17,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 00:35:27,105 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 00:35:27,119 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 00:35:27,119 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 00:35:27,120 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 00:35:27,120 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 00:35:27,127 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 00:35:27,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 00:35:27,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 00:35:27,128 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 00:35:27,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 12:35:27 BoogieIcfgContainer [2024-11-03 00:35:27,136 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 00:35:27,136 INFO L158 Benchmark]: Toolchain (without parser) took 29968.99ms. Allocated memory was 342.9MB in the beginning and 785.4MB in the end (delta: 442.5MB). Free memory was 287.0MB in the beginning and 520.4MB in the end (delta: -233.4MB). Peak memory consumption was 343.8MB. Max. memory is 8.0GB. [2024-11-03 00:35:27,136 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 199.2MB. Free memory is still 152.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 00:35:27,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.00ms. Allocated memory is still 342.9MB. Free memory was 287.0MB in the beginning and 271.7MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-03 00:35:27,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.82ms. Allocated memory is still 342.9MB. Free memory was 271.7MB in the beginning and 269.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 00:35:27,137 INFO L158 Benchmark]: Boogie Preprocessor took 52.26ms. Allocated memory is still 342.9MB. Free memory was 269.7MB in the beginning and 266.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 00:35:27,138 INFO L158 Benchmark]: RCFGBuilder took 698.54ms. Allocated memory is still 342.9MB. Free memory was 266.5MB in the beginning and 249.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-03 00:35:27,138 INFO L158 Benchmark]: TraceAbstraction took 28856.54ms. Allocated memory was 342.9MB in the beginning and 785.4MB in the end (delta: 442.5MB). Free memory was 248.2MB in the beginning and 520.4MB in the end (delta: -272.2MB). Peak memory consumption was 305.0MB. Max. memory is 8.0GB. [2024-11-03 00:35:27,143 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 199.2MB. Free memory is still 152.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 314.00ms. Allocated memory is still 342.9MB. Free memory was 287.0MB in the beginning and 271.7MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.82ms. Allocated memory is still 342.9MB. Free memory was 271.7MB in the beginning and 269.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.26ms. Allocated memory is still 342.9MB. Free memory was 269.7MB in the beginning and 266.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 698.54ms. Allocated memory is still 342.9MB. Free memory was 266.5MB in the beginning and 249.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 28856.54ms. Allocated memory was 342.9MB in the beginning and 785.4MB in the end (delta: 442.5MB). Free memory was 248.2MB in the beginning and 520.4MB in the end (delta: -272.2MB). Peak memory consumption was 305.0MB. 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 - 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 - 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 - 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: 19]: 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 2 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.1s, OverallIterations: 4, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 482 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 430 mSDsluCounter, 942 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 656 mSDsCounter, 305 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1080 IncrementalHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 305 mSolverCounterUnsat, 286 mSDtfsCounter, 1080 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1087 GetRequests, 1009 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=3, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 156 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1042 ConstructedInterpolants, 98 QuantifiedInterpolants, 4916 SizeOfPredicates, 31 NumberOfNonLiveVariables, 853 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 6612/6720 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: 117]: Loop Invariant Derived loop invariant: ((var_1_19 <= 0) && (((var_1_17 >= 191) && (0 != var_1_16)) || (((((var_1_6 == var_1_1) && (var_1_17 >= 191)) && (var_1_17 == var_1_21)) && (4 == var_1_22)) && (var_1_20 == var_1_14)))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: ((var_1_19 <= 0) || (var_1_17 >= 191)) Ensures: (((0 != cond) && ((var_1_19 <= 0) || (var_1_17 >= 191))) && (((((((((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (var_1_17 == \old(var_1_17))) && (var_1_18 == \old(var_1_18))) && (var_1_19 == \old(var_1_19))) && (var_1_20 == \old(var_1_20))) && (var_1_21 == \old(var_1_21))) && (var_1_22 == \old(var_1_22))) && (last_1_var_1_7 == \old(last_1_var_1_7)))) RESULT: Ultimate proved your program to be correct! [2024-11-03 00:35:27,264 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...