/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-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 10:23:55,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 10:23:55,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 10:23:55,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 10:23:55,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 10:23:55,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 10:23:55,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 10:23:55,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 10:23:55,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 10:23:55,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 10:23:55,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 10:23:55,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 10:23:55,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 10:23:55,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 10:23:55,943 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 10:23:55,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 10:23:55,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 10:23:55,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 10:23:55,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 10:23:55,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 10:23:55,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 10:23:55,948 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 10:23:55,948 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 10:23:55,949 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 10:23:55,949 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 10:23:55,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 10:23:55,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 10:23:55,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 10:23:55,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 10:23:55,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 10:23:55,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 10:23:55,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 10:23:55,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 10:23:55,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 10:23:55,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 10:23:55,951 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 10:23:55,951 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 10:23:55,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 10:23:55,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 10:23:55,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 10:23:55,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 10:23:55,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 10:23:56,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 10:23:56,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 10:23:56,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 10:23:56,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 10:23:56,224 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 10:23:56,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p19.c [2024-11-05 10:23:57,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 10:23:57,912 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 10:23:57,913 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p19.c [2024-11-05 10:23:57,923 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1209cc16b/52efcf1d1bfb46f3bb0783e47b753894/FLAG4c0a26df7 [2024-11-05 10:23:57,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1209cc16b/52efcf1d1bfb46f3bb0783e47b753894 [2024-11-05 10:23:57,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 10:23:57,940 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 10:23:57,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 10:23:57,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 10:23:57,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 10:23:57,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:23:57" (1/1) ... [2024-11-05 10:23:57,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9292d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:57, skipping insertion in model container [2024-11-05 10:23:57,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:23:57" (1/1) ... [2024-11-05 10:23:57,985 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 10:23:58,169 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p19.c[1266,1279] [2024-11-05 10:23:58,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 10:23:58,284 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 10:23:58,295 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p19.c[1266,1279] [2024-11-05 10:23:58,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 10:23:58,392 INFO L204 MainTranslator]: Completed translation [2024-11-05 10:23:58,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58 WrapperNode [2024-11-05 10:23:58,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 10:23:58,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 10:23:58,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 10:23:58,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 10:23:58,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,462 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 456 [2024-11-05 10:23:58,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 10:23:58,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 10:23:58,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 10:23:58,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 10:23:58,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,481 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,500 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]. [2024-11-05 10:23:58,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,501 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,520 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 10:23:58,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 10:23:58,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 10:23:58,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 10:23:58,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (1/1) ... [2024-11-05 10:23:58,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 10:23:58,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 10:23:58,568 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 10:23:58,571 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 10:23:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 10:23:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 10:23:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 10:23:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 10:23:58,785 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 10:23:58,787 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 10:23:59,169 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-05 10:23:59,169 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 10:23:59,182 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 10:23:59,183 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 10:23:59,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:23:59 BoogieIcfgContainer [2024-11-05 10:23:59,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 10:23:59,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 10:23:59,186 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 10:23:59,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 10:23:59,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:23:57" (1/3) ... [2024-11-05 10:23:59,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7721dfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:23:59, skipping insertion in model container [2024-11-05 10:23:59,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:23:58" (2/3) ... [2024-11-05 10:23:59,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7721dfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:23:59, skipping insertion in model container [2024-11-05 10:23:59,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:23:59" (3/3) ... [2024-11-05 10:23:59,193 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p19.c [2024-11-05 10:23:59,209 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 10:23:59,209 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 10:23:59,267 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 10:23:59,272 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;@4acd46d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 10:23:59,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 10:23:59,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 10:23:59,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-05 10:23:59,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 10:23:59,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-05 10:23:59,283 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 10:23:59,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 10:23:59,289 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-05 10:23:59,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 10:23:59,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499123994] [2024-11-05 10:23:59,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 10:23:59,301 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 10:23:59,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 10:23:59,306 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 10:23:59,308 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 10:23:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 10:23:59,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-05 10:23:59,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 10:23:59,682 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 10:23:59,682 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 10:23:59,795 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 10:23:59,797 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 10:23:59,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499123994] [2024-11-05 10:23:59,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [499123994] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 10:23:59,798 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 10:23:59,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 10:23:59,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781021719] [2024-11-05 10:23:59,800 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 10:23:59,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 10:23:59,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 10:23:59,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 10:23:59,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 10:23:59,834 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 10:23:59,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 10:23:59,888 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2024-11-05 10:23:59,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 10:23:59,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-05 10:23:59,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 10:23:59,896 INFO L225 Difference]: With dead ends: 13 [2024-11-05 10:23:59,896 INFO L226 Difference]: Without dead ends: 0 [2024-11-05 10:23:59,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 10:23:59,904 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 10:23:59,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 10:23:59,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-05 10:23:59,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-05 10:23:59,930 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 10:23:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-05 10:23:59,932 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2024-11-05 10:23:59,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 10:23:59,932 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-05 10:23:59,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 10:23:59,933 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-05 10:23:59,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-05 10:23:59,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 10:23:59,940 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 (2)] Forceful destruction successful, exit code 0 [2024-11-05 10:24:00,136 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 10:24:00,139 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-05 10:24:00,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-05 10:24:00,160 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 10:24:00,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 10:24:00 BoogieIcfgContainer [2024-11-05 10:24:00,177 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 10:24:00,177 INFO L158 Benchmark]: Toolchain (without parser) took 2237.09ms. Allocated memory is still 305.1MB. Free memory was 256.1MB in the beginning and 179.0MB in the end (delta: 77.1MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB. [2024-11-05 10:24:00,178 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 197.1MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 10:24:00,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.74ms. Allocated memory is still 305.1MB. Free memory was 255.5MB in the beginning and 234.0MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2024-11-05 10:24:00,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.68ms. Allocated memory is still 305.1MB. Free memory was 234.0MB in the beginning and 229.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-05 10:24:00,181 INFO L158 Benchmark]: Boogie Preprocessor took 69.66ms. Allocated memory is still 305.1MB. Free memory was 229.9MB in the beginning and 225.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-05 10:24:00,181 INFO L158 Benchmark]: RCFGBuilder took 650.49ms. Allocated memory is still 305.1MB. Free memory was 225.7MB in the beginning and 262.9MB in the end (delta: -37.2MB). Peak memory consumption was 42.5MB. Max. memory is 8.0GB. [2024-11-05 10:24:00,182 INFO L158 Benchmark]: TraceAbstraction took 990.69ms. Allocated memory is still 305.1MB. Free memory was 262.3MB in the beginning and 179.0MB in the end (delta: 83.4MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. [2024-11-05 10:24:00,187 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 197.1MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 451.74ms. Allocated memory is still 305.1MB. Free memory was 255.5MB in the beginning and 234.0MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.68ms. Allocated memory is still 305.1MB. Free memory was 234.0MB in the beginning and 229.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.66ms. Allocated memory is still 305.1MB. Free memory was 229.9MB in the beginning and 225.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 650.49ms. Allocated memory is still 305.1MB. Free memory was 225.7MB in the beginning and 262.9MB in the end (delta: -37.2MB). Peak memory consumption was 42.5MB. Max. memory is 8.0GB. * TraceAbstraction took 990.69ms. Allocated memory is still 305.1MB. Free memory was 262.3MB in the beginning and 179.0MB in the end (delta: 83.4MB). Peak memory consumption was 83.9MB. 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: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 1 QuantifiedInterpolants, 53 SizeOfPredicates, 4 NumberOfNonLiveVariables, 78 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 115]: Loop Invariant Derived loop invariant: (((0 == state_8) && (1 == var_12)) && (1 == mask_SORT_1)) RESULT: Ultimate proved your program to be correct! [2024-11-05 10:24:00,218 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...