/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_fillercode_fillercodestructure_filler-ps-cn_file-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:24:18,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:24:18,173 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 03:24:18,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:24:18,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:24:18,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:24:18,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:24:18,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:24:18,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:24:18,204 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:24:18,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:24:18,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:24:18,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:24:18,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:24:18,216 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:24:18,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:24:18,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:24:18,224 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:24:18,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:24:18,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:24:18,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:24:18,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:24:18,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:24:18,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:24:18,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:24:18,226 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:24:18,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:24:18,226 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:24:18,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:24:18,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:24:18,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:24:18,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:24:18,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:24:18,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:24:18,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:24:18,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:24:18,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:24:18,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:24:18,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:24:18,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:24:18,228 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:24:18,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:24:18,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:24:18,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:24:18,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:24:18,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:24:18,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:24:18,427 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:24:18,427 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:24:18,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i [2023-12-16 03:24:19,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:24:19,784 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:24:19,787 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i [2023-12-16 03:24:19,794 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae94831d/4c0fe4f74eb04f6a9123d456cf641404/FLAG5a0dbcbc7 [2023-12-16 03:24:19,804 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae94831d/4c0fe4f74eb04f6a9123d456cf641404 [2023-12-16 03:24:19,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:24:19,807 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:24:19,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:24:19,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:24:19,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:24:19,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:24:19" (1/1) ... [2023-12-16 03:24:19,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@138f475c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:19, skipping insertion in model container [2023-12-16 03:24:19,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:24:19" (1/1) ... [2023-12-16 03:24:19,848 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:24:19,959 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_fillercode_fillercodestructure_filler-ps-cn_file-10.i[919,932] [2023-12-16 03:24:20,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:24:20,051 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:24:20,066 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_fillercode_fillercodestructure_filler-ps-cn_file-10.i[919,932] [2023-12-16 03:24:20,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:24:20,141 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:24:20,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20 WrapperNode [2023-12-16 03:24:20,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:24:20,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:24:20,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:24:20,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:24:20,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,227 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 297 [2023-12-16 03:24:20,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:24:20,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:24:20,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:24:20,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:24:20,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,259 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 03:24:20,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:24:20,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:24:20,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:24:20,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:24:20,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (1/1) ... [2023-12-16 03:24:20,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:24:20,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:24:20,325 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 03:24:20,376 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 03:24:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:24:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:24:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:24:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:24:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:24:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:24:20,492 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:24:20,494 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:24:20,853 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:24:20,904 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:24:20,904 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:24:20,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:24:20 BoogieIcfgContainer [2023-12-16 03:24:20,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:24:20,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:24:20,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:24:20,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:24:20,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:24:19" (1/3) ... [2023-12-16 03:24:20,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d721d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:24:20, skipping insertion in model container [2023-12-16 03:24:20,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:24:20" (2/3) ... [2023-12-16 03:24:20,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d721d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:24:20, skipping insertion in model container [2023-12-16 03:24:20,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:24:20" (3/3) ... [2023-12-16 03:24:20,911 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-10.i [2023-12-16 03:24:20,924 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:24:20,924 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:24:20,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:24:20,980 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;@1e75181e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:24:20,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:24:20,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 68 states have (on average 1.411764705882353) internal successors, (96), 69 states have internal predecessors, (96), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 03:24:21,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-16 03:24:21,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:24:21,008 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:21,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:24:21,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:24:21,015 INFO L85 PathProgramCache]: Analyzing trace with hash 58737502, now seen corresponding path program 1 times [2023-12-16 03:24:21,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:24:21,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204841957] [2023-12-16 03:24:21,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:24:21,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:24:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:24:21,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:24:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204841957] [2023-12-16 03:24:21,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 03:24:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027785793] [2023-12-16 03:24:21,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:24:21,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:24:21,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:24:21,290 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 03:24:21,320 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 03:24:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:24:21,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 03:24:21,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:24:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2023-12-16 03:24:21,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:24:21,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027785793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:24:21,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:24:21,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:24:21,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846192513] [2023-12-16 03:24:21,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:24:21,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:24:21,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:24:21,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:24:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:24:21,601 INFO L87 Difference]: Start difference. First operand has 119 states, 68 states have (on average 1.411764705882353) internal successors, (96), 69 states have internal predecessors, (96), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-16 03:24:21,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:24:21,662 INFO L93 Difference]: Finished difference Result 235 states and 430 transitions. [2023-12-16 03:24:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:24:21,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 292 [2023-12-16 03:24:21,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:24:21,671 INFO L225 Difference]: With dead ends: 235 [2023-12-16 03:24:21,671 INFO L226 Difference]: Without dead ends: 117 [2023-12-16 03:24:21,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 291 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 03:24:21,682 INFO L413 NwaCegarLoop]: 184 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, 184 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 03:24:21,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:24:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-12-16 03:24:21,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-12-16 03:24:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 03:24:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 187 transitions. [2023-12-16 03:24:21,738 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 187 transitions. Word has length 292 [2023-12-16 03:24:21,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:24:21,739 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 187 transitions. [2023-12-16 03:24:21,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-16 03:24:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 187 transitions. [2023-12-16 03:24:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-16 03:24:21,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:24:21,748 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:21,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 03:24:21,955 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 03:24:21,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:24:21,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:24:21,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1479591270, now seen corresponding path program 1 times [2023-12-16 03:24:21,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:24:21,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751060065] [2023-12-16 03:24:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:24:21,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:24:22,015 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:24:22,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555756770] [2023-12-16 03:24:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:24:22,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:24:22,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:24:22,022 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 03:24:22,040 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 03:24:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:24:22,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 03:24:22,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:24:22,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-16 03:24:22,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:24:22,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:24:22,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751060065] [2023-12-16 03:24:22,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:24:22,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555756770] [2023-12-16 03:24:22,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555756770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:24:22,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:24:22,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:24:22,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885043058] [2023-12-16 03:24:22,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:24:22,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:24:22,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:24:22,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:24:22,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:24:22,501 INFO L87 Difference]: Start difference. First operand 117 states and 187 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-16 03:24:22,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:24:22,681 INFO L93 Difference]: Finished difference Result 350 states and 560 transitions. [2023-12-16 03:24:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 03:24:22,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 292 [2023-12-16 03:24:22,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:24:22,690 INFO L225 Difference]: With dead ends: 350 [2023-12-16 03:24:22,691 INFO L226 Difference]: Without dead ends: 234 [2023-12-16 03:24:22,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:24:22,693 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 109 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:24:22,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 539 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:24:22,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-16 03:24:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 210. [2023-12-16 03:24:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 111 states have (on average 1.3153153153153154) internal successors, (146), 111 states have internal predecessors, (146), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-16 03:24:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 338 transitions. [2023-12-16 03:24:22,746 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 338 transitions. Word has length 292 [2023-12-16 03:24:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:24:22,749 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 338 transitions. [2023-12-16 03:24:22,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-16 03:24:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 338 transitions. [2023-12-16 03:24:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-12-16 03:24:22,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:24:22,751 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:22,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 03:24:22,958 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 03:24:22,958 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:24:22,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:24:22,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1535919220, now seen corresponding path program 1 times [2023-12-16 03:24:22,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:24:22,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299799130] [2023-12-16 03:24:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:24:22,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:24:22,990 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:24:22,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449377431] [2023-12-16 03:24:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:24:22,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:24:22,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:24:22,992 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) [2023-12-16 03:24:23,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:24:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:24:23,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 03:24:23,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:24:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 2131 proven. 303 refuted. 0 times theorem prover too weak. 2078 trivial. 0 not checked. [2023-12-16 03:24:24,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:24:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 102 proven. 312 refuted. 0 times theorem prover too weak. 4098 trivial. 0 not checked. [2023-12-16 03:24:25,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:24:25,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299799130] [2023-12-16 03:24:25,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:24:25,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449377431] [2023-12-16 03:24:25,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449377431] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:24:25,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:24:25,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2023-12-16 03:24:25,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572429101] [2023-12-16 03:24:25,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:24:25,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-16 03:24:25,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:24:25,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-16 03:24:25,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2023-12-16 03:24:25,038 INFO L87 Difference]: Start difference. First operand 210 states and 338 transitions. Second operand has 32 states, 31 states have (on average 3.903225806451613) internal successors, (121), 30 states have internal predecessors, (121), 7 states have call successors, (85), 4 states have call predecessors, (85), 9 states have return successors, (86), 7 states have call predecessors, (86), 7 states have call successors, (86) [2023-12-16 03:24:27,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:24:27,397 INFO L93 Difference]: Finished difference Result 467 states and 685 transitions. [2023-12-16 03:24:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-16 03:24:27,398 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.903225806451613) internal successors, (121), 30 states have internal predecessors, (121), 7 states have call successors, (85), 4 states have call predecessors, (85), 9 states have return successors, (86), 7 states have call predecessors, (86), 7 states have call successors, (86) Word has length 293 [2023-12-16 03:24:27,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:24:27,402 INFO L225 Difference]: With dead ends: 467 [2023-12-16 03:24:27,402 INFO L226 Difference]: Without dead ends: 351 [2023-12-16 03:24:27,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1207 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1343, Invalid=4059, Unknown=0, NotChecked=0, Total=5402 [2023-12-16 03:24:27,405 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 696 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:24:27,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 919 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 03:24:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-12-16 03:24:27,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 296. [2023-12-16 03:24:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 180 states have (on average 1.2777777777777777) internal successors, (230), 182 states have internal predecessors, (230), 102 states have call successors, (102), 13 states have call predecessors, (102), 13 states have return successors, (102), 100 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-16 03:24:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 434 transitions. [2023-12-16 03:24:27,441 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 434 transitions. Word has length 293 [2023-12-16 03:24:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:24:27,444 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 434 transitions. [2023-12-16 03:24:27,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.903225806451613) internal successors, (121), 30 states have internal predecessors, (121), 7 states have call successors, (85), 4 states have call predecessors, (85), 9 states have return successors, (86), 7 states have call predecessors, (86), 7 states have call successors, (86) [2023-12-16 03:24:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 434 transitions. [2023-12-16 03:24:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-12-16 03:24:27,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:24:27,447 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:27,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 03:24:27,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:24:27,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:24:27,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:24:27,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1018766196, now seen corresponding path program 1 times [2023-12-16 03:24:27,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:24:27,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774021171] [2023-12-16 03:24:27,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:24:27,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:24:27,716 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:24:27,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724881659] [2023-12-16 03:24:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:24:27,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:24:27,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:24:27,720 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) [2023-12-16 03:24:27,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 03:24:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:24:27,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-16 03:24:27,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:24:31,879 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 1904 proven. 228 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2023-12-16 03:24:31,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:24:55,551 WARN L854 $PredicateComparison]: unable to prove that (or (let ((.cse35 (mod c_~var_1_5~0 65536)) (.cse15 (* 65535 c_~var_1_5~0)) (.cse2 (mod c_~var_1_7~0 65536))) (let ((.cse0 (= (mod c_~last_1_var_1_8~0 256) 0)) (.cse6 (mod c_~var_1_17~0 4294967296)) (.cse13 (+ .cse2 1)) (.cse4 (mod c_~var_1_1~0 65536)) (.cse8 (mod (+ .cse15 c_~var_1_4~0) 65536)) (.cse40 (mod c_~var_1_16~0 65536)) (.cse39 (+ .cse35 c_~var_1_11~0)) (.cse38 (mod c_~var_1_14~0 65536))) (and (or .cse0 (let ((.cse34 (mod c_~var_1_4~0 65536)) (.cse16 (* 65535 c_~var_1_7~0))) (let ((.cse7 (+ .cse4 65536)) (.cse1 (= .cse4 (mod (+ .cse15 .cse16 56892) 65536))) (.cse9 (< .cse34 56893)) (.cse14 (< 56892 .cse34))) (and (or .cse1 (forall ((v_z_98 Int) (v_y_98 Int)) (let ((.cse3 (+ (* v_z_98 65535) (* 65536 v_y_98))) (.cse5 (+ v_z_98 .cse8))) (or (< .cse2 .cse3) (< v_z_98 0) (< .cse3 0) (< 65535 v_z_98) (= .cse4 .cse5) (< .cse6 .cse3) (= .cse5 .cse7)))) .cse9) (or .cse1 .cse9 (forall ((v_z_98 Int) (v_y_98 Int)) (let ((.cse10 (+ (* v_z_98 65535) (* 65536 v_y_98))) (.cse11 (+ v_z_98 .cse8))) (or (< .cse2 .cse10) (< .cse10 0) (< 65535 v_z_98) (< .cse11 65536) (< .cse6 .cse10) (= .cse11 .cse7))))) (or (forall ((v_z_98 Int) (v_y_98 Int)) (let ((.cse12 (+ (* v_z_98 65535) (* 65536 v_y_98)))) (or (< 65535 (+ v_z_98 .cse8)) (< v_z_98 0) (< 65535 .cse12) (< .cse12 .cse13) (< .cse6 .cse12)))) .cse14) (or .cse14 (= .cse4 (mod (+ .cse15 c_~var_1_4~0 .cse16) 65536))) (or (forall ((v_z_98 Int) (v_y_98 Int)) (let ((.cse17 (+ (* v_z_98 65535) (* 65536 v_y_98)))) (or (< 65535 .cse17) (< .cse17 .cse13) (< 65535 v_z_98) (< (+ v_z_98 .cse8) 65536) (< .cse6 .cse17)))) .cse14) (or (let ((.cse20 (mod (+ .cse15 56892) 65536))) (and (or .cse1 (forall ((v_z_99 Int) (v_y_99 Int)) (let ((.cse19 (+ (* v_z_99 65535) (* 65536 v_y_99))) (.cse18 (+ v_z_99 .cse20))) (or (< 65535 v_z_99) (= .cse18 .cse7) (< .cse6 .cse19) (< .cse19 0) (< 65535 .cse19) (< .cse18 65536))))) (forall ((v_z_99 Int)) (let ((.cse21 (+ v_z_99 .cse20))) (or (= .cse4 .cse21) (< 65535 .cse21) (< v_z_99 0) (forall ((v_y_99 Int)) (let ((.cse22 (+ (* v_z_99 65535) (* 65536 v_y_99)))) (or (< .cse6 .cse22) (< .cse22 .cse13) (< 65535 .cse22))))))) (or .cse1 (forall ((v_z_99 Int) (v_y_99 Int)) (let ((.cse23 (+ v_z_99 .cse20)) (.cse24 (+ (* v_z_99 65535) (* 65536 v_y_99)))) (or (= .cse4 .cse23) (< 65535 v_z_99) (= .cse23 .cse7) (< .cse6 .cse24) (< v_z_99 0) (< .cse24 0) (< 65535 .cse24))))) (or .cse1 (forall ((v_z_99 Int) (v_y_99 Int)) (let ((.cse25 (+ v_z_99 .cse20)) (.cse26 (+ (* v_z_99 65535) (* 65536 v_y_99)))) (or (= .cse4 .cse25) (< 65535 .cse25) (< .cse6 .cse26) (< v_z_99 0) (< .cse26 0) (< 65535 .cse26))))) (forall ((v_z_99 Int)) (let ((.cse27 (+ v_z_99 .cse20))) (or (< 65535 v_z_99) (= .cse27 .cse7) (forall ((v_y_99 Int)) (let ((.cse28 (+ (* v_z_99 65535) (* 65536 v_y_99)))) (or (< .cse6 .cse28) (< .cse28 .cse13) (< 65535 .cse28)))) (< .cse27 65536)))) (forall ((v_z_99 Int)) (let ((.cse29 (+ v_z_99 .cse20))) (or (= .cse4 .cse29) (< 65535 v_z_99) (= .cse29 .cse7) (< v_z_99 0) (forall ((v_y_99 Int)) (let ((.cse30 (+ (* v_z_99 65535) (* 65536 v_y_99)))) (or (< .cse6 .cse30) (< .cse30 .cse13) (< 65535 .cse30))))))))) .cse9) (or .cse1 .cse9 (forall ((v_z_98 Int) (v_y_98 Int)) (let ((.cse32 (+ v_z_98 .cse8)) (.cse31 (+ (* v_z_98 65535) (* 65536 v_y_98)))) (or (< .cse2 .cse31) (< 65535 .cse32) (< v_z_98 0) (< .cse31 0) (= .cse4 .cse32) (< .cse6 .cse31))))) (or (forall ((v_z_98 Int) (v_y_98 Int)) (let ((.cse33 (+ (* v_z_98 65535) (* 65536 v_y_98)))) (or (< v_z_98 0) (< 65535 .cse33) (< .cse33 .cse13) (< 65535 v_z_98) (< .cse6 .cse33)))) .cse14))))) (or (not .cse0) (let ((.cse36 (+ .cse35 1)) (.cse37 (= .cse4 .cse35))) (and (or (< .cse35 .cse2) (< 65534 .cse35) (< .cse6 .cse36) .cse37) (or (< .cse2 .cse36) (< .cse6 .cse13) (< 65534 .cse2) .cse37)))) (or (= .cse8 .cse38) (< .cse39 (+ .cse40 1))) (= 1 (mod c_~var_1_8~0 256)) (or (< .cse40 .cse39) (= .cse38 (mod (+ c_~var_1_4~0 (* c_~var_1_16~0 65535) c_~var_1_11~0) 65536)))))) (= (mod c_~var_1_9~0 256) 0)) is different from false [2023-12-16 03:25:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-16 03:25:21,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:25:21,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774021171] [2023-12-16 03:25:21,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:25:21,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724881659] [2023-12-16 03:25:21,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724881659] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 03:25:21,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 03:25:21,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [17] total 29 [2023-12-16 03:25:21,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053272661] [2023-12-16 03:25:21,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:25:21,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 03:25:21,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:25:21,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 03:25:21,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=577, Unknown=1, NotChecked=52, Total=812 [2023-12-16 03:25:21,189 INFO L87 Difference]: Start difference. First operand 296 states and 434 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Received shutdown request... [2023-12-16 03:25:26,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 03:25:26,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=211, Invalid=662, Unknown=1, NotChecked=56, Total=930 [2023-12-16 03:25:26,574 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 15 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 03:25:26,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1798 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 30 Unchecked, 0.9s Time] [2023-12-16 03:25:26,575 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:25:26,582 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:25:26,595 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 03:25:26,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 03:25:26,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:25:26,782 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (296states) and FLOYD_HOARE automaton (currently 7 states, 14 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-5-3-5-3-8-4-6-2-1 term,while SimplifyDDA2 was simplifying 3 xjuncts wrt. a ∨-2-1 context. [2023-12-16 03:25:26,786 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 03:25:26,787 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:25:26,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:25:26 BoogieIcfgContainer [2023-12-16 03:25:26,790 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:25:26,790 INFO L158 Benchmark]: Toolchain (without parser) took 66983.29ms. Allocated memory was 343.9MB in the beginning and 1.3GB in the end (delta: 954.2MB). Free memory was 294.4MB in the beginning and 1.0GB in the end (delta: -720.1MB). Peak memory consumption was 765.7MB. Max. memory is 8.0GB. [2023-12-16 03:25:26,791 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:25:26,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.12ms. Allocated memory is still 343.9MB. Free memory was 294.4MB in the beginning and 277.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 03:25:26,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.11ms. Allocated memory is still 343.9MB. Free memory was 277.1MB in the beginning and 271.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 03:25:26,793 INFO L158 Benchmark]: Boogie Preprocessor took 72.42ms. Allocated memory is still 343.9MB. Free memory was 271.9MB in the beginning and 264.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 03:25:26,793 INFO L158 Benchmark]: RCFGBuilder took 602.77ms. Allocated memory is still 343.9MB. Free memory was 264.0MB in the beginning and 230.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-16 03:25:26,794 INFO L158 Benchmark]: TraceAbstraction took 65883.51ms. Allocated memory was 343.9MB in the beginning and 1.3GB in the end (delta: 954.2MB). Free memory was 229.4MB in the beginning and 1.0GB in the end (delta: -785.1MB). Peak memory consumption was 700.7MB. Max. memory is 8.0GB. [2023-12-16 03:25:26,795 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 334.12ms. Allocated memory is still 343.9MB. Free memory was 294.4MB in the beginning and 277.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 85.11ms. Allocated memory is still 343.9MB. Free memory was 277.1MB in the beginning and 271.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.42ms. Allocated memory is still 343.9MB. Free memory was 271.9MB in the beginning and 264.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 602.77ms. Allocated memory is still 343.9MB. Free memory was 264.0MB in the beginning and 230.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 65883.51ms. Allocated memory was 343.9MB in the beginning and 1.3GB in the end (delta: 954.2MB). Free memory was 229.4MB in the beginning and 1.0GB in the end (delta: -785.1MB). Peak memory consumption was 700.7MB. 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 (296states) and FLOYD_HOARE automaton (currently 7 states, 14 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-5-3-5-3-8-4-6-2-1 term,while SimplifyDDA2 was simplifying 3 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.8s, OverallIterations: 4, TraceHistogramMax: 48, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 833 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 820 mSDsluCounter, 3440 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 30 IncrementalHoareTripleChecker+Unchecked, 2790 mSDsCounter, 320 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1660 IncrementalHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 320 mSolverCounterUnsat, 650 mSDtfsCounter, 1660 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1799 GetRequests, 1694 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1474 ImplicationChecksByTransitivity, 24.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=3, InterpolantAutomatonStates: 59, 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, 3 MinimizatonAttempts, 79 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 55.7s InterpolantComputationTime, 1462 NumberOfCodeBlocks, 1462 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1750 ConstructedInterpolants, 10 QuantifiedInterpolants, 19554 SizeOfPredicates, 48 NumberOfNonLiveVariables, 2543 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 26229/27072 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