/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 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 20:57:53,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 20:57:53,369 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 20:57:53,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 20:57:53,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 20:57:53,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 20:57:53,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 20:57:53,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 20:57:53,401 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 20:57:53,401 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 20:57:53,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 20:57:53,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 20:57:53,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 20:57:53,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 20:57:53,405 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 20:57:53,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 20:57:53,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 20:57:53,406 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 20:57:53,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 20:57:53,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 20:57:53,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 20:57:53,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 20:57:53,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 20:57:53,407 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 20:57:53,408 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 20:57:53,408 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 20:57:53,408 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 20:57:53,408 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 20:57:53,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 20:57:53,409 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 20:57:53,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 20:57:53,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 20:57:53,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 20:57:53,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 20:57:53,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:57:53,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 20:57:53,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 20:57:53,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 20:57:53,410 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 20:57:53,410 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 20:57:53,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 20:57:53,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 20:57:53,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 20:57:53,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 20:57:53,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:53,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 20:57:53,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 20:57:53,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 20:57:53,621 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 20:57:53,621 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 20:57:53,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092b.c [2024-11-05 20:57:54,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 20:57:54,990 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 20:57:54,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092b.c [2024-11-05 20:57:54,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a259502/52722a5b81af4238b579e0d21b1100cd/FLAG10fcff6cc [2024-11-05 20:57:55,011 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a259502/52722a5b81af4238b579e0d21b1100cd [2024-11-05 20:57:55,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 20:57:55,014 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 20:57:55,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 20:57:55,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 20:57:55,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 20:57:55,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cb1b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55, skipping insertion in model container [2024-11-05 20:57:55,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 20:57:55,210 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092b.c[2109,2122] [2024-11-05 20:57:55,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:57:55,226 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 20:57:55,252 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092b.c[2109,2122] [2024-11-05 20:57:55,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 20:57:55,271 INFO L204 MainTranslator]: Completed translation [2024-11-05 20:57:55,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55 WrapperNode [2024-11-05 20:57:55,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 20:57:55,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 20:57:55,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 20:57:55,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 20:57:55,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,312 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2024-11-05 20:57:55,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 20:57:55,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 20:57:55,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 20:57:55,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 20:57:55,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,341 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 2, 1]. [2024-11-05 20:57:55,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 20:57:55,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 20:57:55,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 20:57:55,366 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 20:57:55,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (1/1) ... [2024-11-05 20:57:55,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 20:57:55,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 20:57:55,394 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) [2024-11-05 20:57:55,397 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 [2024-11-05 20:57:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 20:57:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-05 20:57:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-05 20:57:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-05 20:57:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-05 20:57:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-05 20:57:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-05 20:57:55,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 20:57:55,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-05 20:57:55,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 20:57:55,496 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 20:57:55,499 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 20:57:56,204 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-05 20:57:56,204 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 20:57:56,213 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 20:57:56,213 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-05 20:57:56,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:57:56 BoogieIcfgContainer [2024-11-05 20:57:56,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 20:57:56,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 20:57:56,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 20:57:56,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 20:57:56,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:57:55" (1/3) ... [2024-11-05 20:57:56,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bcd5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:57:56, skipping insertion in model container [2024-11-05 20:57:56,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:57:55" (2/3) ... [2024-11-05 20:57:56,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bcd5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:57:56, skipping insertion in model container [2024-11-05 20:57:56,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:57:56" (3/3) ... [2024-11-05 20:57:56,221 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2024-11-05 20:57:56,232 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 20:57:56,233 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 20:57:56,270 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 20:57:56,274 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;@7bb31415, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 20:57:56,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 20:57:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2024-11-05 20:57:56,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-05 20:57:56,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:57:56,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:57:56,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:57:56,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:57:56,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2024-11-05 20:57:56,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:57:56,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454657911] [2024-11-05 20:57:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:57:56,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:56,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:57:56,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:57:56,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-05 20:57:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:57:56,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 20:57:56,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:57:56,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:56,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:57:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:56,382 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:57:56,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454657911] [2024-11-05 20:57:56,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [454657911] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:57:56,382 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:57:56,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-05 20:57:56,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886227066] [2024-11-05 20:57:56,384 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:57:56,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 20:57:56,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:57:56,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 20:57:56,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 20:57:56,404 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 20:57:56,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:57:56,418 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2024-11-05 20:57:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 20:57:56,420 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-05 20:57:56,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:57:56,425 INFO L225 Difference]: With dead ends: 64 [2024-11-05 20:57:56,425 INFO L226 Difference]: Without dead ends: 30 [2024-11-05 20:57:56,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 20:57:56,430 INFO L432 NwaCegarLoop]: 47 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, 47 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 [2024-11-05 20:57:56,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 20:57:56,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-05 20:57:56,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-05 20:57:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 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) [2024-11-05 20:57:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2024-11-05 20:57:56,466 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2024-11-05 20:57:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:57:56,466 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2024-11-05 20:57:56,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 20:57:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2024-11-05 20:57:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-05 20:57:56,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:57:56,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:57:56,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-05 20:57:56,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:56,668 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:57:56,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:57:56,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2024-11-05 20:57:56,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:57:56,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491014666] [2024-11-05 20:57:56,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:57:56,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:56,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:57:56,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:57:56,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-05 20:57:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:57:56,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-05 20:57:56,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:57:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:56,899 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:57:56,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:56,983 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:57:56,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491014666] [2024-11-05 20:57:56,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1491014666] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:57:56,983 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:57:56,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2024-11-05 20:57:56,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562289727] [2024-11-05 20:57:56,983 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:57:56,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 20:57:56,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:57:56,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 20:57:56,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-05 20:57:56,986 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 20:57:57,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:57:57,297 INFO L93 Difference]: Finished difference Result 41 states and 54 transitions. [2024-11-05 20:57:57,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-05 20:57:57,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-05 20:57:57,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:57:57,298 INFO L225 Difference]: With dead ends: 41 [2024-11-05 20:57:57,298 INFO L226 Difference]: Without dead ends: 21 [2024-11-05 20:57:57,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-05 20:57:57,300 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 31 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-05 20:57:57,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 30 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-05 20:57:57,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-05 20:57:57,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2024-11-05 20:57:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 20:57:57,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-11-05 20:57:57,304 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2024-11-05 20:57:57,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:57:57,304 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-05 20:57:57,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 20:57:57,304 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-11-05 20:57:57,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-05 20:57:57,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:57:57,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:57:57,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-05 20:57:57,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:57,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:57:57,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:57:57,507 INFO L85 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2024-11-05 20:57:57,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:57:57,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128864448] [2024-11-05 20:57:57,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:57:57,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:57:57,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:57:57,509 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:57:57,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-05 20:57:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:57:57,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-05 20:57:57,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:57:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:57,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:57:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:57:59,414 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:57:59,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128864448] [2024-11-05 20:57:59,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2128864448] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:57:59,415 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:57:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2024-11-05 20:57:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118091709] [2024-11-05 20:57:59,415 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:57:59,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 20:57:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:57:59,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 20:57:59,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-05 20:57:59,416 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-11-05 20:57:59,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:57:59,918 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2024-11-05 20:57:59,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 20:57:59,924 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-05 20:57:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:57:59,925 INFO L225 Difference]: With dead ends: 24 [2024-11-05 20:57:59,925 INFO L226 Difference]: Without dead ends: 17 [2024-11-05 20:57:59,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-05 20:57:59,926 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-05 20:57:59,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-05 20:57:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-05 20:57:59,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-05 20:57:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 20:57:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-11-05 20:57:59,929 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2024-11-05 20:57:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:57:59,929 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-11-05 20:57:59,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2024-11-05 20:57:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-11-05 20:57:59,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-05 20:57:59,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:57:59,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:57:59,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-05 20:58:00,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:58:00,130 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:58:00,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:58:00,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1786240041, now seen corresponding path program 1 times [2024-11-05 20:58:00,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:58:00,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446088019] [2024-11-05 20:58:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:58:00,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:58:00,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:58:00,134 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:58:00,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-05 20:58:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:58:00,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-05 20:58:00,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:58:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:58:00,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:58:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:58:00,378 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:58:00,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446088019] [2024-11-05 20:58:00,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [446088019] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:58:00,379 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:58:00,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2024-11-05 20:58:00,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095554977] [2024-11-05 20:58:00,380 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:58:00,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-05 20:58:00,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:58:00,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-05 20:58:00,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-05 20:58:00,381 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-05 20:58:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:58:00,511 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2024-11-05 20:58:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 20:58:00,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-05 20:58:00,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:58:00,512 INFO L225 Difference]: With dead ends: 24 [2024-11-05 20:58:00,512 INFO L226 Difference]: Without dead ends: 17 [2024-11-05 20:58:00,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-05 20:58:00,513 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 20:58:00,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 15 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 20:58:00,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-05 20:58:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-05 20:58:00,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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) [2024-11-05 20:58:00,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2024-11-05 20:58:00,516 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2024-11-05 20:58:00,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:58:00,516 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2024-11-05 20:58:00,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-05 20:58:00,516 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2024-11-05 20:58:00,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-05 20:58:00,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 20:58:00,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 20:58:00,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-05 20:58:00,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:58:00,721 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 20:58:00,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 20:58:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash -11232679, now seen corresponding path program 1 times [2024-11-05 20:58:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 20:58:00,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142485884] [2024-11-05 20:58:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 20:58:00,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:58:00,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 20:58:00,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 20:58:00,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-05 20:58:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 20:58:00,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-05 20:58:00,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 20:58:01,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:58:01,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 20:58:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 20:58:01,339 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 20:58:01,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142485884] [2024-11-05 20:58:01,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [142485884] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 20:58:01,339 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 20:58:01,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 13 [2024-11-05 20:58:01,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463816429] [2024-11-05 20:58:01,340 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 20:58:01,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-05 20:58:01,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 20:58:01,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-05 20:58:01,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-05 20:58:01,341 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2024-11-05 20:58:01,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 20:58:01,496 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2024-11-05 20:58:01,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 20:58:01,497 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-05 20:58:01,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 20:58:01,497 INFO L225 Difference]: With dead ends: 17 [2024-11-05 20:58:01,497 INFO L226 Difference]: Without dead ends: 0 [2024-11-05 20:58:01,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-05 20:58:01,498 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 26 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 20:58:01,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 30 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 20:58:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-05 20:58:01,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-05 20:58:01,499 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) [2024-11-05 20:58:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-05 20:58:01,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-11-05 20:58:01,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 20:58:01,500 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-05 20:58:01,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2024-11-05 20:58:01,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-05 20:58:01,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-05 20:58:01,504 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 20:58:01,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-05 20:58:01,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 20:58:01,708 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-05 20:58:01,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-05 20:58:01,797 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 20:58:01,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 08:58:01 BoogieIcfgContainer [2024-11-05 20:58:01,805 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 20:58:01,806 INFO L158 Benchmark]: Toolchain (without parser) took 6791.96ms. Allocated memory was 188.7MB in the beginning and 246.4MB in the end (delta: 57.7MB). Free memory was 145.5MB in the beginning and 205.5MB in the end (delta: -60.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 20:58:01,806 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 20:58:01,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.85ms. Allocated memory is still 188.7MB. Free memory was 145.1MB in the beginning and 131.5MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-05 20:58:01,806 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.48ms. Allocated memory is still 188.7MB. Free memory was 131.5MB in the beginning and 129.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 20:58:01,806 INFO L158 Benchmark]: Boogie Preprocessor took 52.68ms. Allocated memory is still 188.7MB. Free memory was 129.4MB in the beginning and 127.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 20:58:01,807 INFO L158 Benchmark]: RCFGBuilder took 847.96ms. Allocated memory is still 188.7MB. Free memory was 126.6MB in the beginning and 111.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-05 20:58:01,807 INFO L158 Benchmark]: TraceAbstraction took 5590.08ms. Allocated memory was 188.7MB in the beginning and 246.4MB in the end (delta: 57.7MB). Free memory was 110.5MB in the beginning and 205.5MB in the end (delta: -95.0MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 20:58:01,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 255.85ms. Allocated memory is still 188.7MB. Free memory was 145.1MB in the beginning and 131.5MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.48ms. Allocated memory is still 188.7MB. Free memory was 131.5MB in the beginning and 129.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.68ms. Allocated memory is still 188.7MB. Free memory was 129.4MB in the beginning and 127.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 847.96ms. Allocated memory is still 188.7MB. Free memory was 126.6MB in the beginning and 111.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5590.08ms. Allocated memory was 188.7MB in the beginning and 246.4MB in the end (delta: 57.7MB). Free memory was 110.5MB in the beginning and 205.5MB in the end (delta: -95.0MB). There was no memory consumed. Max. memory is 8.0GB. * 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: 98]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 84 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 28 QuantifiedInterpolants, 888 SizeOfPredicates, 18 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-05 20:58:01,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...