/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-23.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:36:05,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:36:05,937 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:36:05,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:36:05,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:36:05,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:36:05,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:36:05,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:36:05,980 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:36:05,984 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:36:05,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:36:05,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:36:05,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:36:05,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:36:05,986 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:36:05,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:36:05,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:36:05,986 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:36:05,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:36:05,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:36:05,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:36:05,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:36:05,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:36:05,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:36:05,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:36:05,989 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:36:05,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:36:05,989 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:36:05,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:36:05,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:36:05,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:36:05,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:36:05,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:36:05,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:36:05,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:36:05,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:36:05,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:36:05,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:36:05,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:36:05,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:36:05,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:36:05,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:36:05,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:36:05,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:36:06,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:36:06,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:36:06,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:36:06,276 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:36:06,278 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:36:06,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-23.i [2023-12-16 02:36:07,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:36:07,813 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:36:07,828 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-23.i [2023-12-16 02:36:07,840 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feeed7944/22f3441942ec460ea3a6a31f80cc3449/FLAG39f40ee21 [2023-12-16 02:36:07,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feeed7944/22f3441942ec460ea3a6a31f80cc3449 [2023-12-16 02:36:07,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:36:07,854 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:36:07,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:36:07,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:36:07,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:36:07,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:36:07" (1/1) ... [2023-12-16 02:36:07,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4ccfd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:07, skipping insertion in model container [2023-12-16 02:36:07,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:36:07" (1/1) ... [2023-12-16 02:36:07,902 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:36:08,056 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-23.i[919,932] [2023-12-16 02:36:08,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:36:08,125 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:36:08,135 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_dependencies_file-23.i[919,932] [2023-12-16 02:36:08,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:36:08,173 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:36:08,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08 WrapperNode [2023-12-16 02:36:08,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:36:08,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:36:08,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:36:08,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:36:08,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,232 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2023-12-16 02:36:08,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:36:08,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:36:08,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:36:08,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:36:08,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,252 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,268 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]. [2023-12-16 02:36:08,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:36:08,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:36:08,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:36:08,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:36:08,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (1/1) ... [2023-12-16 02:36:08,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:36:08,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:36:08,333 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) [2023-12-16 02:36:08,346 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 [2023-12-16 02:36:08,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:36:08,365 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 02:36:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 02:36:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:36:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:36:08,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:36:08,472 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:36:08,477 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:36:08,802 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:36:08,840 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:36:08,840 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:36:08,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:36:08 BoogieIcfgContainer [2023-12-16 02:36:08,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:36:08,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:36:08,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:36:08,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:36:08,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:36:07" (1/3) ... [2023-12-16 02:36:08,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6450cd0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:36:08, skipping insertion in model container [2023-12-16 02:36:08,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:36:08" (2/3) ... [2023-12-16 02:36:08,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6450cd0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:36:08, skipping insertion in model container [2023-12-16 02:36:08,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:36:08" (3/3) ... [2023-12-16 02:36:08,848 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-23.i [2023-12-16 02:36:08,862 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:36:08,862 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:36:08,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:36:08,909 INFO L357 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, mHoare=true, 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;@5449c4d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:36:08,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:36:08,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 02:36:08,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 02:36:08,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:36:08,928 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:36:08,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:36:08,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:36:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1345594966, now seen corresponding path program 1 times [2023-12-16 02:36:08,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:36:08,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351693800] [2023-12-16 02:36:08,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:36:08,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:36:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:09,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:36:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351693800] [2023-12-16 02:36:09,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 02:36:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858843901] [2023-12-16 02:36:09,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:36:09,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:36:09,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:36:09,132 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) [2023-12-16 02:36:09,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 02:36:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:09,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 02:36:09,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:36:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2023-12-16 02:36:09,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:36:09,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858843901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:36:09,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:36:09,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:36:09,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324388980] [2023-12-16 02:36:09,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:36:09,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:36:09,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:36:09,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:36:09,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:36:09,347 INFO L87 Difference]: Start difference. First operand has 57 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 34 states have internal predecessors, (48), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 02:36:09,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:36:09,384 INFO L93 Difference]: Finished difference Result 111 states and 199 transitions. [2023-12-16 02:36:09,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:36:09,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2023-12-16 02:36:09,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:36:09,394 INFO L225 Difference]: With dead ends: 111 [2023-12-16 02:36:09,394 INFO L226 Difference]: Without dead ends: 55 [2023-12-16 02:36:09,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:36:09,400 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:36:09,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:36:09,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-16 02:36:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-16 02:36:09,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 02:36:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 85 transitions. [2023-12-16 02:36:09,439 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 85 transitions. Word has length 129 [2023-12-16 02:36:09,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:36:09,439 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 85 transitions. [2023-12-16 02:36:09,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 02:36:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 85 transitions. [2023-12-16 02:36:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 02:36:09,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:36:09,443 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:36:09,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 02:36:09,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 02:36:09,651 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:36:09,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:36:09,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1820982748, now seen corresponding path program 1 times [2023-12-16 02:36:09,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:36:09,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565822691] [2023-12-16 02:36:09,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:36:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:36:09,751 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:36:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422760338] [2023-12-16 02:36:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:36:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:36:09,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:36:09,759 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) [2023-12-16 02:36:09,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 02:36:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:36:10,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 02:36:10,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:36:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 438 proven. 9 refuted. 0 times theorem prover too weak. 393 trivial. 0 not checked. [2023-12-16 02:36:11,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:37:15,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:37:15,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565822691] [2023-12-16 02:37:15,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:37:15,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422760338] [2023-12-16 02:37:15,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422760338] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:37:15,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-16 02:37:15,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-12-16 02:37:15,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76873402] [2023-12-16 02:37:15,498 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-16 02:37:15,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 02:37:15,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:37:15,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 02:37:15,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2023-12-16 02:37:15,500 INFO L87 Difference]: Start difference. First operand 55 states and 85 transitions. Second operand has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 15 states have internal predecessors, (42), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Received shutdown request... [2023-12-16 02:37:19,657 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:37:19,659 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:37:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 02:37:19,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 34.9s TimeCoverageRelationStatistics Valid=394, Invalid=1088, Unknown=0, NotChecked=0, Total=1482 [2023-12-16 02:37:19,705 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 58 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:37:19,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 82 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 02:37:19,707 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:37:19,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 02:37:19,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 02:37:19,910 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (55states) and FLOYD_HOARE automaton (currently 15 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 39 known predicates. [2023-12-16 02:37:19,915 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-16 02:37:19,917 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:37:19,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:37:19 BoogieIcfgContainer [2023-12-16 02:37:19,920 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:37:19,920 INFO L158 Benchmark]: Toolchain (without parser) took 72066.46ms. Allocated memory was 287.3MB in the beginning and 349.2MB in the end (delta: 61.9MB). Free memory was 231.1MB in the beginning and 206.6MB in the end (delta: 24.5MB). Peak memory consumption was 87.5MB. Max. memory is 8.0GB. [2023-12-16 02:37:19,921 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 225.4MB. Free memory is still 173.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:37:19,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.02ms. Allocated memory is still 287.3MB. Free memory was 230.8MB in the beginning and 216.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 02:37:19,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.02ms. Allocated memory is still 287.3MB. Free memory was 216.8MB in the beginning and 212.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 02:37:19,922 INFO L158 Benchmark]: Boogie Preprocessor took 57.44ms. Allocated memory is still 287.3MB. Free memory was 212.6MB in the beginning and 206.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 02:37:19,922 INFO L158 Benchmark]: RCFGBuilder took 549.48ms. Allocated memory is still 287.3MB. Free memory was 206.2MB in the beginning and 244.2MB in the end (delta: -37.9MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. [2023-12-16 02:37:19,923 INFO L158 Benchmark]: TraceAbstraction took 71077.17ms. Allocated memory was 287.3MB in the beginning and 349.2MB in the end (delta: 61.9MB). Free memory was 243.7MB in the beginning and 206.6MB in the end (delta: 37.1MB). Peak memory consumption was 98.9MB. Max. memory is 8.0GB. [2023-12-16 02:37:19,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 225.4MB. Free memory is still 173.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 319.02ms. Allocated memory is still 287.3MB. Free memory was 230.8MB in the beginning and 216.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.02ms. Allocated memory is still 287.3MB. Free memory was 216.8MB in the beginning and 212.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.44ms. Allocated memory is still 287.3MB. Free memory was 212.6MB in the beginning and 206.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 549.48ms. Allocated memory is still 287.3MB. Free memory was 206.2MB in the beginning and 244.2MB in the end (delta: -37.9MB). Peak memory consumption was 25.3MB. Max. memory is 8.0GB. * TraceAbstraction took 71077.17ms. Allocated memory was 287.3MB in the beginning and 349.2MB in the end (delta: 61.9MB). Free memory was 243.7MB in the beginning and 206.6MB in the end (delta: 37.1MB). Peak memory consumption was 98.9MB. 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (55states) and FLOYD_HOARE automaton (currently 15 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 39 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.0s, OverallIterations: 2, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 114 mSDtfsCounter, 212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 293 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 34.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, InterpolantAutomatonStates: 2, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 65.4s InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 1269 SizeOfPredicates, 10 NumberOfNonLiveVariables, 612 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1671/1680 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: Timeout Completed graceful shutdown