/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/floats-esbmc-regression/trunc_nondet.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 22:59:31,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 22:59:31,137 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 22:59:31,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 22:59:31,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 22:59:31,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 22:59:31,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 22:59:31,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 22:59:31,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 22:59:31,171 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 22:59:31,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 22:59:31,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 22:59:31,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 22:59:31,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 22:59:31,173 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 22:59:31,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 22:59:31,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 22:59:31,174 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 22:59:31,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 22:59:31,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 22:59:31,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 22:59:31,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 22:59:31,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 22:59:31,179 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 22:59:31,179 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 22:59:31,179 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 22:59:31,180 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 22:59:31,180 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 22:59:31,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 22:59:31,180 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 22:59:31,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 22:59:31,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 22:59:31,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 22:59:31,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 22:59:31,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 22:59:31,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 22:59:31,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 22:59:31,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 22:59:31,183 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 22:59:31,184 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 22:59:31,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 22:59:31,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 22:59:31,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 22:59:31,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 22:59:31,185 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:31,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 22:59:31,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 22:59:31,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 22:59:31,430 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 22:59:31,431 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 22:59:31,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/trunc_nondet.i [2024-11-02 22:59:32,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 22:59:33,119 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 22:59:33,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/trunc_nondet.i [2024-11-02 22:59:33,135 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6ad5e8c/fb875198644b4242b7852dfd11b58f41/FLAGde56c060b [2024-11-02 22:59:33,150 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e6ad5e8c/fb875198644b4242b7852dfd11b58f41 [2024-11-02 22:59:33,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 22:59:33,154 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 22:59:33,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 22:59:33,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 22:59:33,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 22:59:33,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ff464e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33, skipping insertion in model container [2024-11-02 22:59:33,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 22:59:33,608 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/trunc_nondet.i[38163,38176] [2024-11-02 22:59:33,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 22:59:33,631 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 22:59:33,665 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/trunc_nondet.i[38163,38176] [2024-11-02 22:59:33,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 22:59:33,757 INFO L204 MainTranslator]: Completed translation [2024-11-02 22:59:33,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33 WrapperNode [2024-11-02 22:59:33,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 22:59:33,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 22:59:33,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 22:59:33,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 22:59:33,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,806 INFO L138 Inliner]: procedures = 461, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2024-11-02 22:59:33,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 22:59:33,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 22:59:33,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 22:59:33,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 22:59:33,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,828 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]. [2024-11-02 22:59:33,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,836 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 22:59:33,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 22:59:33,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 22:59:33,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 22:59:33,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (1/1) ... [2024-11-02 22:59:33,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 22:59:33,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:59:33,886 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) [2024-11-02 22:59:33,888 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 [2024-11-02 22:59:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 22:59:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 22:59:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 22:59:33,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 22:59:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 22:59:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 22:59:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 22:59:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 22:59:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-11-02 22:59:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-11-02 22:59:34,010 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 22:59:34,013 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 22:59:34,168 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-02 22:59:34,168 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 22:59:34,178 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 22:59:34,178 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 22:59:34,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:34 BoogieIcfgContainer [2024-11-02 22:59:34,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 22:59:34,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 22:59:34,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 22:59:34,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 22:59:34,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:59:33" (1/3) ... [2024-11-02 22:59:34,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1481c716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:59:34, skipping insertion in model container [2024-11-02 22:59:34,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:33" (2/3) ... [2024-11-02 22:59:34,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1481c716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:59:34, skipping insertion in model container [2024-11-02 22:59:34,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:34" (3/3) ... [2024-11-02 22:59:34,186 INFO L112 eAbstractionObserver]: Analyzing ICFG trunc_nondet.i [2024-11-02 22:59:34,201 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 22:59:34,201 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 22:59:34,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 22:59:34,259 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;@3b1daca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 22:59:34,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 22:59:34,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-02 22:59:34,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 22:59:34,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:59:34,272 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:59:34,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:59:34,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:59:34,277 INFO L85 PathProgramCache]: Analyzing trace with hash -632255995, now seen corresponding path program 1 times [2024-11-02 22:59:34,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:59:34,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584250885] [2024-11-02 22:59:34,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:59:34,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:34,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:59:34,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:59:34,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 22:59:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:59:34,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 22:59:34,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:59:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 22:59:34,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:59:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 22:59:34,879 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:59:34,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584250885] [2024-11-02 22:59:34,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1584250885] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:59:34,880 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:59:34,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 6 [2024-11-02 22:59:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008203788] [2024-11-02 22:59:34,884 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:59:34,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 22:59:34,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:59:34,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 22:59:34,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-02 22:59:34,914 INFO L87 Difference]: Start difference. First operand has 36 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 22:59:35,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:59:35,326 INFO L93 Difference]: Finished difference Result 96 states and 135 transitions. [2024-11-02 22:59:35,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 22:59:35,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 27 [2024-11-02 22:59:35,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:59:35,333 INFO L225 Difference]: With dead ends: 96 [2024-11-02 22:59:35,333 INFO L226 Difference]: Without dead ends: 55 [2024-11-02 22:59:35,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-02 22:59:35,339 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 25 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 22:59:35,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 188 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 22:59:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-02 22:59:35,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2024-11-02 22:59:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 33 states have internal predecessors, (37), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 13 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-02 22:59:35,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2024-11-02 22:59:35,390 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 27 [2024-11-02 22:59:35,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:59:35,390 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2024-11-02 22:59:35,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 22:59:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2024-11-02 22:59:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-02 22:59:35,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:59:35,393 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:59:35,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 22:59:35,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:35,595 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:59:35,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:59:35,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1032400626, now seen corresponding path program 1 times [2024-11-02 22:59:35,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:59:35,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402824047] [2024-11-02 22:59:35,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:59:35,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:35,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:59:35,598 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:59:35,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 22:59:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:59:35,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 22:59:35,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:59:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 22:59:35,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:59:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 22:59:35,979 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:59:35,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402824047] [2024-11-02 22:59:35,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1402824047] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:59:35,980 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:59:35,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2024-11-02 22:59:35,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428975420] [2024-11-02 22:59:35,980 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:59:35,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 22:59:35,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:59:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 22:59:35,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 22:59:35,983 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 22:59:36,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:59:36,402 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2024-11-02 22:59:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 22:59:36,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 28 [2024-11-02 22:59:36,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:59:36,409 INFO L225 Difference]: With dead ends: 79 [2024-11-02 22:59:36,409 INFO L226 Difference]: Without dead ends: 59 [2024-11-02 22:59:36,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-02 22:59:36,411 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 25 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 22:59:36,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 173 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 22:59:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-02 22:59:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2024-11-02 22:59:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 22:59:36,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2024-11-02 22:59:36,425 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 28 [2024-11-02 22:59:36,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:59:36,426 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2024-11-02 22:59:36,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 22:59:36,426 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2024-11-02 22:59:36,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-02 22:59:36,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:59:36,427 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:59:36,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 22:59:36,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:36,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:59:36,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:59:36,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1221265408, now seen corresponding path program 1 times [2024-11-02 22:59:36,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:59:36,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357074657] [2024-11-02 22:59:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:59:36,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:36,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:59:36,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:59:36,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 22:59:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:59:36,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 22:59:36,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:59:36,827 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 22:59:36,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:59:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 22:59:36,884 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:59:36,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357074657] [2024-11-02 22:59:36,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [357074657] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:59:36,884 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:59:36,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 7 [2024-11-02 22:59:36,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711381318] [2024-11-02 22:59:36,885 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:59:36,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 22:59:36,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:59:36,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 22:59:36,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 22:59:36,887 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 22:59:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:59:37,003 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-11-02 22:59:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 22:59:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 29 [2024-11-02 22:59:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:59:37,005 INFO L225 Difference]: With dead ends: 59 [2024-11-02 22:59:37,005 INFO L226 Difference]: Without dead ends: 39 [2024-11-02 22:59:37,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-02 22:59:37,008 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 14 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 22:59:37,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 132 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 22:59:37,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-02 22:59:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-02 22:59:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 22:59:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2024-11-02 22:59:37,018 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 29 [2024-11-02 22:59:37,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:59:37,019 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2024-11-02 22:59:37,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 22:59:37,020 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2024-11-02 22:59:37,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 22:59:37,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:59:37,021 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:59:37,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 22:59:37,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:37,222 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:59:37,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:59:37,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1389743859, now seen corresponding path program 1 times [2024-11-02 22:59:37,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:59:37,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165473102] [2024-11-02 22:59:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:59:37,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:37,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:59:37,225 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:59:37,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 22:59:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:59:37,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 22:59:37,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:59:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 22:59:37,392 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:59:37,440 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-02 22:59:37,441 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:59:37,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165473102] [2024-11-02 22:59:37,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1165473102] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:59:37,441 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:59:37,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 7 [2024-11-02 22:59:37,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321698907] [2024-11-02 22:59:37,441 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:59:37,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 22:59:37,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:59:37,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 22:59:37,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 22:59:37,443 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 22:59:37,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:59:37,536 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2024-11-02 22:59:37,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 22:59:37,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 30 [2024-11-02 22:59:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:59:37,538 INFO L225 Difference]: With dead ends: 59 [2024-11-02 22:59:37,538 INFO L226 Difference]: Without dead ends: 39 [2024-11-02 22:59:37,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-02 22:59:37,539 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 12 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 22:59:37,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 132 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 22:59:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-02 22:59:37,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-02 22:59:37,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 22:59:37,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2024-11-02 22:59:37,545 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 30 [2024-11-02 22:59:37,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:59:37,545 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2024-11-02 22:59:37,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-02 22:59:37,546 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2024-11-02 22:59:37,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-02 22:59:37,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:59:37,546 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:59:37,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 22:59:37,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:37,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:59:37,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:59:37,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2095876811, now seen corresponding path program 1 times [2024-11-02 22:59:37,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:59:37,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810930205] [2024-11-02 22:59:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:59:37,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:37,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:59:37,749 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:59:37,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 22:59:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 22:59:37,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 22:59:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 22:59:37,961 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-02 22:59:37,962 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 22:59:37,963 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 22:59:37,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-02 22:59:38,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:59:38,176 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-02 22:59:38,198 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 22:59:38,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:59:38 BoogieIcfgContainer [2024-11-02 22:59:38,202 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 22:59:38,202 INFO L158 Benchmark]: Toolchain (without parser) took 5048.64ms. Allocated memory is still 319.8MB. Free memory was 268.5MB in the beginning and 165.6MB in the end (delta: 103.0MB). Peak memory consumption was 105.1MB. Max. memory is 8.0GB. [2024-11-02 22:59:38,202 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 190.8MB. Free memory was 143.3MB in the beginning and 143.2MB in the end (delta: 138.4kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 22:59:38,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.73ms. Allocated memory is still 319.8MB. Free memory was 268.1MB in the beginning and 220.3MB in the end (delta: 47.7MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2024-11-02 22:59:38,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.18ms. Allocated memory is still 319.8MB. Free memory was 220.3MB in the beginning and 217.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 22:59:38,203 INFO L158 Benchmark]: Boogie Preprocessor took 42.45ms. Allocated memory is still 319.8MB. Free memory was 217.7MB in the beginning and 215.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 22:59:38,204 INFO L158 Benchmark]: RCFGBuilder took 327.83ms. Allocated memory is still 319.8MB. Free memory was 215.6MB in the beginning and 202.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-02 22:59:38,204 INFO L158 Benchmark]: TraceAbstraction took 4021.27ms. Allocated memory is still 319.8MB. Free memory was 200.9MB in the beginning and 165.6MB in the end (delta: 35.4MB). Peak memory consumption was 38.0MB. Max. memory is 8.0GB. [2024-11-02 22:59:38,206 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 190.8MB. Free memory was 143.3MB in the beginning and 143.2MB in the end (delta: 138.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 603.73ms. Allocated memory is still 319.8MB. Free memory was 268.1MB in the beginning and 220.3MB in the end (delta: 47.7MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.18ms. Allocated memory is still 319.8MB. Free memory was 220.3MB in the beginning and 217.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.45ms. Allocated memory is still 319.8MB. Free memory was 217.7MB in the beginning and 215.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 327.83ms. Allocated memory is still 319.8MB. Free memory was 215.6MB in the beginning and 202.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4021.27ms. Allocated memory is still 319.8MB. Free memory was 200.9MB in the beginning and 165.6MB in the end (delta: 35.4MB). Peak memory consumption was 38.0MB. 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 - UnprovableResult [Line: 1005]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of rint at line 1017. Possible FailurePath: [L1011] double d = __VERIFIER_nondet_double(); [L1012] CALL assume_abort_if_not(!(sizeof (d) == sizeof (float) ? __isinff (d) : sizeof (d) == sizeof (double) ? __isinf (d) : __isinfl (d))) VAL [\old(cond)=1] [L991] COND FALSE !(!cond) VAL [\old(cond)=1] [L1012] RET assume_abort_if_not(!(sizeof (d) == sizeof (float) ? __isinff (d) : sizeof (d) == sizeof (double) ? __isinf (d) : __isinfl (d))) VAL [d=282024733048905] [L1013] CALL assume_abort_if_not(!(sizeof (d) == sizeof (float) ? __isnanf (d) : sizeof (d) == sizeof (double) ? __isnan (d) : __isnanl (d))) VAL [\old(cond)=1] [L991] COND FALSE !(!cond) VAL [\old(cond)=1] [L1013] RET assume_abort_if_not(!(sizeof (d) == sizeof (float) ? __isnanf (d) : sizeof (d) == sizeof (double) ? __isnan (d) : __isnanl (d))) VAL [d=282024733048905] [L1015] int save_round = fegetround(); VAL [d=282024733048905, save_round=1] [L1016] FCALL fesetround(0xc00) VAL [d=282024733048905, save_round=1] [L1017] double result = rint(d); [L1018] FCALL fesetround(save_round) VAL [d=282024733048905, result=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002225073858507202, save_round=1] [L1020] CALL __VERIFIER_assert(trunc(d) == result) VAL [\old(cond)=0] [L1005] COND TRUE !(cond) VAL [\old(cond)=0] [L1005] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 625 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 477 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 148 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=1, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 SizeOfPredicates, 4 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 56/56 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 22:59:38,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...