/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_operatoramount_amount50_file-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:13:35,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:13:36,045 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 04:13:36,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:13:36,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:13:36,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:13:36,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:13:36,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:13:36,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:13:36,075 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:13:36,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:13:36,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:13:36,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:13:36,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:13:36,077 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:13:36,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:13:36,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:13:36,077 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:13:36,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:13:36,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:13:36,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:13:36,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:13:36,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:13:36,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:13:36,079 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:13:36,079 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:13:36,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:13:36,080 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:13:36,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:13:36,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:13:36,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:13:36,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:13:36,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:13:36,081 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:13:36,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:13:36,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:13:36,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:13:36,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:13:36,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:13:36,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:13:36,082 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:13:36,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:13:36,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:13:36,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:13:36,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:13:36,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:13:36,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:13:36,263 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:13:36,263 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:13:36,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-10.i [2023-12-16 04:13:37,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:13:37,422 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:13:37,422 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-10.i [2023-12-16 04:13:37,429 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46429163e/29f98718ad7c48f4b364e90dca3fdccf/FLAGe04ea8ae8 [2023-12-16 04:13:37,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46429163e/29f98718ad7c48f4b364e90dca3fdccf [2023-12-16 04:13:37,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:13:37,444 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:13:37,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:13:37,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:13:37,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:13:37,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1564514b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37, skipping insertion in model container [2023-12-16 04:13:37,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,477 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:13:37,566 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_operatoramount_amount50_file-10.i[915,928] [2023-12-16 04:13:37,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:13:37,607 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:13:37,618 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_operatoramount_amount50_file-10.i[915,928] [2023-12-16 04:13:37,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:13:37,654 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:13:37,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37 WrapperNode [2023-12-16 04:13:37,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:13:37,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:13:37,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:13:37,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:13:37,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,714 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 150 [2023-12-16 04:13:37,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:13:37,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:13:37,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:13:37,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:13:37,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,737 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 04:13:37,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:13:37,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:13:37,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:13:37,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:13:37,772 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (1/1) ... [2023-12-16 04:13:37,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:13:37,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:13:37,869 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 04:13:37,914 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 04:13:37,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:13:37,922 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:13:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:13:37,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:13:37,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:13:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:13:37,989 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:13:37,990 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:13:38,232 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:13:38,256 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:13:38,256 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:13:38,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:13:38 BoogieIcfgContainer [2023-12-16 04:13:38,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:13:38,258 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:13:38,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:13:38,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:13:38,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:13:37" (1/3) ... [2023-12-16 04:13:38,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a63a664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:13:38, skipping insertion in model container [2023-12-16 04:13:38,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:13:37" (2/3) ... [2023-12-16 04:13:38,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a63a664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:13:38, skipping insertion in model container [2023-12-16 04:13:38,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:13:38" (3/3) ... [2023-12-16 04:13:38,262 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-10.i [2023-12-16 04:13:38,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:13:38,273 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:13:38,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:13:38,322 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;@1930b815, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:13:38,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:13:38,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 04:13:38,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 04:13:38,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:13:38,337 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:38,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:13:38,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:13:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1519772041, now seen corresponding path program 1 times [2023-12-16 04:13:38,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:13:38,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471249997] [2023-12-16 04:13:38,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:13:38,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:13:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:13:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 04:13:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 04:13:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 04:13:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 04:13:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 04:13:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 04:13:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 04:13:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 04:13:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 04:13:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 04:13:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:13:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:13:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 04:13:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 04:13:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 04:13:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 04:13:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 04:13:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:38,644 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:13:38,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:13:38,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471249997] [2023-12-16 04:13:38,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471249997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:13:38,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:13:38,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:13:38,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376869244] [2023-12-16 04:13:38,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:13:38,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:13:38,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:13:38,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:13:38,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:13:38,686 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 04:13:38,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:13:38,730 INFO L93 Difference]: Finished difference Result 115 states and 198 transitions. [2023-12-16 04:13:38,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:13:38,732 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2023-12-16 04:13:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:13:38,739 INFO L225 Difference]: With dead ends: 115 [2023-12-16 04:13:38,739 INFO L226 Difference]: Without dead ends: 57 [2023-12-16 04:13:38,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 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 04:13:38,747 INFO L413 NwaCegarLoop]: 83 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, 83 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 04:13:38,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:13:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-16 04:13:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-12-16 04:13:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 37 states have internal predecessors, (50), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-16 04:13:38,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 86 transitions. [2023-12-16 04:13:38,790 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 86 transitions. Word has length 118 [2023-12-16 04:13:38,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:13:38,790 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 86 transitions. [2023-12-16 04:13:38,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 04:13:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 86 transitions. [2023-12-16 04:13:38,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 04:13:38,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:13:38,794 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:38,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:13:38,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:13:38,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:13:38,794 INFO L85 PathProgramCache]: Analyzing trace with hash 168546231, now seen corresponding path program 1 times [2023-12-16 04:13:38,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:13:38,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807303415] [2023-12-16 04:13:38,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:13:38,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:13:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:13:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 04:13:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 04:13:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 04:13:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 04:13:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 04:13:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 04:13:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 04:13:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 04:13:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 04:13:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 04:13:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:13:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:13:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 04:13:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 04:13:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 04:13:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 04:13:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 04:13:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:39,227 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:13:39,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:13:39,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807303415] [2023-12-16 04:13:39,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807303415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:13:39,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:13:39,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:13:39,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401616506] [2023-12-16 04:13:39,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:13:39,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:13:39,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:13:39,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:13:39,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:13:39,232 INFO L87 Difference]: Start difference. First operand 57 states and 86 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:13:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:13:39,368 INFO L93 Difference]: Finished difference Result 170 states and 257 transitions. [2023-12-16 04:13:39,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:13:39,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2023-12-16 04:13:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:13:39,370 INFO L225 Difference]: With dead ends: 170 [2023-12-16 04:13:39,370 INFO L226 Difference]: Without dead ends: 114 [2023-12-16 04:13:39,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:13:39,372 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 79 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:13:39,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 315 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:13:39,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-16 04:13:39,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 90. [2023-12-16 04:13:39,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 51 states have internal predecessors, (64), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 04:13:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 136 transitions. [2023-12-16 04:13:39,411 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 136 transitions. Word has length 118 [2023-12-16 04:13:39,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:13:39,411 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 136 transitions. [2023-12-16 04:13:39,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-16 04:13:39,411 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 136 transitions. [2023-12-16 04:13:39,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 04:13:39,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:13:39,413 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:39,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:13:39,414 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:13:39,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:13:39,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2115435422, now seen corresponding path program 1 times [2023-12-16 04:13:39,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:13:39,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780771582] [2023-12-16 04:13:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:13:39,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:13:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:13:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 04:13:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 04:13:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 04:13:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 04:13:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 04:13:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 04:13:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 04:13:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 04:13:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 04:13:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 04:13:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:13:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:13:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 04:13:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 04:13:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 04:13:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 04:13:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 04:13:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:13:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:13:54,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:13:54,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780771582] [2023-12-16 04:13:54,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780771582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:13:54,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:13:54,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 04:13:54,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235817628] [2023-12-16 04:13:54,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:13:54,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 04:13:54,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:13:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 04:13:55,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-16 04:13:55,002 INFO L87 Difference]: Start difference. First operand 90 states and 136 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 04:13:56,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:13:56,626 INFO L93 Difference]: Finished difference Result 277 states and 397 transitions. [2023-12-16 04:13:56,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-16 04:13:56,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2023-12-16 04:13:56,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:13:56,628 INFO L225 Difference]: With dead ends: 277 [2023-12-16 04:13:56,628 INFO L226 Difference]: Without dead ends: 221 [2023-12-16 04:13:56,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2023-12-16 04:13:56,630 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 379 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:13:56,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 504 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:13:56,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-16 04:13:56,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 109. [2023-12-16 04:13:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 04:13:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2023-12-16 04:13:56,655 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 119 [2023-12-16 04:13:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:13:56,655 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2023-12-16 04:13:56,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 04:13:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2023-12-16 04:13:56,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 04:13:56,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:13:56,656 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:13:56,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:13:56,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:13:56,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:13:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1370185248, now seen corresponding path program 1 times [2023-12-16 04:13:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:13:56,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491400770] [2023-12-16 04:13:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:13:56,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:13:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:14:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 04:14:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 04:14:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 04:14:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-16 04:14:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-16 04:14:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 04:14:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-16 04:14:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-16 04:14:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 04:14:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 04:14:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:14:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:14:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 04:14:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 04:14:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 04:14:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 04:14:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 04:14:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:14:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-16 04:14:09,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:14:09,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491400770] [2023-12-16 04:14:09,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491400770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:14:09,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:14:09,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-16 04:14:09,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052814682] [2023-12-16 04:14:09,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:14:09,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 04:14:09,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:14:09,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 04:14:09,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:14:09,215 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 04:14:11,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:14:11,111 INFO L93 Difference]: Finished difference Result 298 states and 435 transitions. [2023-12-16 04:14:11,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 04:14:11,112 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2023-12-16 04:14:11,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:14:11,113 INFO L225 Difference]: With dead ends: 298 [2023-12-16 04:14:11,113 INFO L226 Difference]: Without dead ends: 242 [2023-12-16 04:14:11,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2023-12-16 04:14:11,115 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 401 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:14:11,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 474 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 04:14:11,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-16 04:14:11,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 170. [2023-12-16 04:14:11,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 111 states have (on average 1.3063063063063063) internal successors, (145), 111 states have internal predecessors, (145), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 04:14:11,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 253 transitions. [2023-12-16 04:14:11,129 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 253 transitions. Word has length 119 [2023-12-16 04:14:11,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:14:11,130 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 253 transitions. [2023-12-16 04:14:11,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 04:14:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 253 transitions. [2023-12-16 04:14:11,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 04:14:11,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:14:11,131 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:14:11,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 04:14:11,131 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:14:11,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:14:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1598282398, now seen corresponding path program 1 times [2023-12-16 04:14:11,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:14:11,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455908905] [2023-12-16 04:14:11,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:14:11,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:14:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 04:14:46,750 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:14:46,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 04:14:46,751 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 120 with TraceHistMax 18,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-6-2-4-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-23-4-3-6-2-4-4-6-4-6-4-4-4-6-4-5-4-6-4-6-4-4-4-4-3-3-2-2-1 context. [2023-12-16 04:14:46,759 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 04:14:46,761 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:14:46,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:14:46 BoogieIcfgContainer [2023-12-16 04:14:46,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:14:46,763 INFO L158 Benchmark]: Toolchain (without parser) took 69319.20ms. Allocated memory was 256.9MB in the beginning and 1.0GB in the end (delta: 751.8MB). Free memory was 213.7MB in the beginning and 649.7MB in the end (delta: -436.0MB). Peak memory consumption was 603.2MB. Max. memory is 8.0GB. [2023-12-16 04:14:46,764 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:14:46,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.68ms. Allocated memory is still 256.9MB. Free memory was 213.5MB in the beginning and 199.0MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 04:14:46,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.50ms. Allocated memory is still 256.9MB. Free memory was 199.0MB in the beginning and 194.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:14:46,764 INFO L158 Benchmark]: Boogie Preprocessor took 56.08ms. Allocated memory is still 256.9MB. Free memory was 194.9MB in the beginning and 187.5MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 04:14:46,764 INFO L158 Benchmark]: RCFGBuilder took 485.27ms. Allocated memory is still 256.9MB. Free memory was 187.5MB in the beginning and 163.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 04:14:46,765 INFO L158 Benchmark]: TraceAbstraction took 68504.72ms. Allocated memory was 256.9MB in the beginning and 1.0GB in the end (delta: 751.8MB). Free memory was 162.8MB in the beginning and 649.7MB in the end (delta: -486.9MB). Peak memory consumption was 551.8MB. Max. memory is 8.0GB. [2023-12-16 04:14:46,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory is still 156.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.68ms. Allocated memory is still 256.9MB. Free memory was 213.5MB in the beginning and 199.0MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.50ms. Allocated memory is still 256.9MB. Free memory was 199.0MB in the beginning and 194.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.08ms. Allocated memory is still 256.9MB. Free memory was 194.9MB in the beginning and 187.5MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 485.27ms. Allocated memory is still 256.9MB. Free memory was 187.5MB in the beginning and 163.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 68504.72ms. Allocated memory was 256.9MB in the beginning and 1.0GB in the end (delta: 751.8MB). Free memory was 162.8MB in the beginning and 649.7MB in the end (delta: -486.9MB). Peak memory consumption was 551.8MB. 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 analyzing trace of length 120 with TraceHistMax 18,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-6-2-4-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-23-4-3-6-2-4-4-6-4-6-4-4-4-6-4-5-4-6-4-6-4-4-4-4-3-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.5s, OverallIterations: 5, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 859 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 859 mSDsluCounter, 1376 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1072 mSDsCounter, 207 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1202 IncrementalHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 207 mSolverCounterUnsat, 304 mSDtfsCounter, 1202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=4, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 208 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 28.5s InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 470 ConstructedInterpolants, 0 QuantifiedInterpolants, 5596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2448/2448 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 [2023-12-16 04:14:46,771 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown