/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_amount10_file-44.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 23:36:25,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 23:36:25,686 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 23:36:25,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 23:36:25,689 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 23:36:25,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 23:36:25,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 23:36:25,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 23:36:25,707 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 23:36:25,708 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 23:36:25,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 23:36:25,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 23:36:25,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 23:36:25,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 23:36:25,709 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 23:36:25,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 23:36:25,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 23:36:25,710 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 23:36:25,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 23:36:25,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 23:36:25,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 23:36:25,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 23:36:25,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 23:36:25,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 23:36:25,713 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 23:36:25,713 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 23:36:25,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 23:36:25,714 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 23:36:25,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 23:36:25,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 23:36:25,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 23:36:25,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 23:36:25,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 23:36:25,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 23:36:25,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 23:36:25,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 23:36:25,716 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 23:36:25,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 23:36:25,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 23:36:25,717 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 23:36:25,717 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 23:36:25,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 23:36:25,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 23:36:25,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 23:36:25,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 23:36:25,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 23:36:25,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 23:36:25,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 23:36:25,971 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 23:36:25,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-44.i [2023-12-20 23:36:27,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 23:36:27,205 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 23:36:27,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-44.i [2023-12-20 23:36:27,213 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa36508e8/c399801e971747c8b7a358c201bd6e7d/FLAG9b69a85b6 [2023-12-20 23:36:27,229 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa36508e8/c399801e971747c8b7a358c201bd6e7d [2023-12-20 23:36:27,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 23:36:27,235 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 23:36:27,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 23:36:27,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 23:36:27,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 23:36:27,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ede1cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27, skipping insertion in model container [2023-12-20 23:36:27,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,263 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 23:36:27,407 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_amount10_file-44.i[915,928] [2023-12-20 23:36:27,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 23:36:27,435 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 23:36:27,443 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_amount10_file-44.i[915,928] [2023-12-20 23:36:27,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 23:36:27,465 INFO L206 MainTranslator]: Completed translation [2023-12-20 23:36:27,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27 WrapperNode [2023-12-20 23:36:27,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 23:36:27,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 23:36:27,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 23:36:27,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 23:36:27,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,493 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2023-12-20 23:36:27,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 23:36:27,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 23:36:27,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 23:36:27,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 23:36:27,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,504 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,513 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]. [2023-12-20 23:36:27,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 23:36:27,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 23:36:27,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 23:36:27,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 23:36:27,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (1/1) ... [2023-12-20 23:36:27,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 23:36:27,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 23:36:27,565 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) [2023-12-20 23:36:27,594 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 [2023-12-20 23:36:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 23:36:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 23:36:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 23:36:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 23:36:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 23:36:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 23:36:27,664 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 23:36:27,666 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 23:36:27,862 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 23:36:27,908 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 23:36:27,908 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 23:36:27,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:36:27 BoogieIcfgContainer [2023-12-20 23:36:27,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 23:36:27,910 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 23:36:27,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 23:36:27,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 23:36:27,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:36:27" (1/3) ... [2023-12-20 23:36:27,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7072bcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:36:27, skipping insertion in model container [2023-12-20 23:36:27,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:36:27" (2/3) ... [2023-12-20 23:36:27,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7072bcc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:36:27, skipping insertion in model container [2023-12-20 23:36:27,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:36:27" (3/3) ... [2023-12-20 23:36:27,927 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-44.i [2023-12-20 23:36:27,942 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 23:36:27,943 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 23:36:27,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 23:36:27,989 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;@1adfb1b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 23:36:27,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 23:36:27,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-20 23:36:28,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 23:36:28,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:36:28,003 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:36:28,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:36:28,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:36:28,007 INFO L85 PathProgramCache]: Analyzing trace with hash 189854335, now seen corresponding path program 1 times [2023-12-20 23:36:28,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:36:28,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182847852] [2023-12-20 23:36:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:36:28,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:36:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 23:36:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 23:36:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 23:36:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 23:36:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 23:36:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 23:36:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 23:36:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 23:36:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 23:36:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 23:36:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 23:36:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 23:36:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 23:36:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 23:36:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-20 23:36:28,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:36:28,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182847852] [2023-12-20 23:36:28,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182847852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 23:36:28,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 23:36:28,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 23:36:28,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081841596] [2023-12-20 23:36:28,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:36:28,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 23:36:28,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:36:28,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 23:36:28,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 23:36:28,293 INFO L87 Difference]: Start difference. First operand has 36 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-20 23:36:28,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:36:28,332 INFO L93 Difference]: Finished difference Result 69 states and 120 transitions. [2023-12-20 23:36:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 23:36:28,335 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 83 [2023-12-20 23:36:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:36:28,340 INFO L225 Difference]: With dead ends: 69 [2023-12-20 23:36:28,340 INFO L226 Difference]: Without dead ends: 34 [2023-12-20 23:36:28,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 23:36:28,346 INFO L413 NwaCegarLoop]: 46 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, 46 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 [2023-12-20 23:36:28,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 23:36:28,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-12-20 23:36:28,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-12-20 23:36:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-20 23:36:28,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2023-12-20 23:36:28,384 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 83 [2023-12-20 23:36:28,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:36:28,384 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2023-12-20 23:36:28,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-20 23:36:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2023-12-20 23:36:28,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 23:36:28,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:36:28,388 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:36:28,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 23:36:28,388 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:36:28,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:36:28,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1330413249, now seen corresponding path program 1 times [2023-12-20 23:36:28,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:36:28,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444530497] [2023-12-20 23:36:28,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:36:28,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:36:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 23:36:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 23:36:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 23:36:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 23:36:28,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 23:36:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 23:36:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 23:36:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 23:36:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 23:36:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 23:36:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 23:36:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 23:36:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 23:36:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 23:36:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-20 23:36:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:36:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444530497] [2023-12-20 23:36:28,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444530497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 23:36:28,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 23:36:28,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 23:36:28,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140253467] [2023-12-20 23:36:28,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:36:28,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 23:36:28,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:36:28,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 23:36:28,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 23:36:28,960 INFO L87 Difference]: Start difference. First operand 34 states and 49 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-20 23:36:29,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:36:29,094 INFO L93 Difference]: Finished difference Result 40 states and 55 transitions. [2023-12-20 23:36:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 23:36:29,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 83 [2023-12-20 23:36:29,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:36:29,096 INFO L225 Difference]: With dead ends: 40 [2023-12-20 23:36:29,096 INFO L226 Difference]: Without dead ends: 38 [2023-12-20 23:36:29,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 23:36:29,097 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 4 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 23:36:29,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 116 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 23:36:29,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-12-20 23:36:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2023-12-20 23:36:29,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-20 23:36:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2023-12-20 23:36:29,105 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 83 [2023-12-20 23:36:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:36:29,107 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2023-12-20 23:36:29,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-20 23:36:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2023-12-20 23:36:29,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 23:36:29,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:36:29,110 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:36:29,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 23:36:29,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:36:29,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:36:29,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1706855508, now seen corresponding path program 1 times [2023-12-20 23:36:29,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:36:29,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451873671] [2023-12-20 23:36:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:36:29,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:36:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 23:36:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 23:36:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 23:36:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 23:36:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 23:36:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 23:36:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 23:36:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 23:36:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 23:36:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 23:36:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 23:36:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 23:36:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 23:36:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 23:36:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:36:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-20 23:36:29,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:36:29,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451873671] [2023-12-20 23:36:29,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451873671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 23:36:29,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 23:36:29,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 23:36:29,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105663585] [2023-12-20 23:36:29,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:36:29,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 23:36:29,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:36:29,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 23:36:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 23:36:29,362 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-20 23:36:29,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:36:29,413 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2023-12-20 23:36:29,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 23:36:29,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 84 [2023-12-20 23:36:29,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:36:29,415 INFO L225 Difference]: With dead ends: 39 [2023-12-20 23:36:29,415 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 23:36:29,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-20 23:36:29,416 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 23:36:29,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 118 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 23:36:29,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 23:36:29,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 23:36:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 23:36:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 23:36:29,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2023-12-20 23:36:29,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:36:29,418 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 23:36:29,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-20 23:36:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 23:36:29,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 23:36:29,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 23:36:29,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 23:36:29,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 23:36:29,445 INFO L899 garLoopResultBuilder]: For program point L64(lines 43 65) no Hoare annotation was computed. [2023-12-20 23:36:29,445 INFO L902 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: true [2023-12-20 23:36:29,446 INFO L902 garLoopResultBuilder]: At program point L60-1(line 60) the Hoare annotation is: true [2023-12-20 23:36:29,446 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-12-20 23:36:29,446 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-20 23:36:29,446 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-20 23:36:29,446 INFO L902 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: true [2023-12-20 23:36:29,446 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-20 23:36:29,446 INFO L902 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: true [2023-12-20 23:36:29,446 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-12-20 23:36:29,446 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 32 42) no Hoare annotation was computed. [2023-12-20 23:36:29,447 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-12-20 23:36:29,447 INFO L902 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: true [2023-12-20 23:36:29,447 INFO L902 garLoopResultBuilder]: At program point L57-1(line 57) the Hoare annotation is: true [2023-12-20 23:36:29,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-20 23:36:29,448 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-12-20 23:36:29,448 INFO L902 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: true [2023-12-20 23:36:29,448 INFO L902 garLoopResultBuilder]: At program point L45-1(line 45) the Hoare annotation is: true [2023-12-20 23:36:29,448 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2023-12-20 23:36:29,448 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 23:36:29,448 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-12-20 23:36:29,448 INFO L902 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: true [2023-12-20 23:36:29,448 INFO L902 garLoopResultBuilder]: At program point L54-1(line 54) the Hoare annotation is: true [2023-12-20 23:36:29,449 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-12-20 23:36:29,449 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 23:36:29,449 INFO L902 garLoopResultBuilder]: At program point L75-2(lines 75 81) the Hoare annotation is: true [2023-12-20 23:36:29,449 INFO L899 garLoopResultBuilder]: For program point L75-3(lines 75 81) no Hoare annotation was computed. [2023-12-20 23:36:29,449 INFO L902 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: true [2023-12-20 23:36:29,449 INFO L902 garLoopResultBuilder]: At program point L63-1(line 63) the Hoare annotation is: true [2023-12-20 23:36:29,449 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-12-20 23:36:29,450 INFO L902 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: true [2023-12-20 23:36:29,452 INFO L902 garLoopResultBuilder]: At program point L51-1(line 51) the Hoare annotation is: true [2023-12-20 23:36:29,452 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-20 23:36:29,452 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-20 23:36:29,455 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-20 23:36:29,458 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-20 23:36:29,464 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-20 23:36:29,468 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 23:36:29,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 11:36:29 BoogieIcfgContainer [2023-12-20 23:36:29,477 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 23:36:29,477 INFO L158 Benchmark]: Toolchain (without parser) took 2242.40ms. Allocated memory was 185.6MB in the beginning and 281.0MB in the end (delta: 95.4MB). Free memory was 142.4MB in the beginning and 230.1MB in the end (delta: -87.6MB). Peak memory consumption was 9.3MB. Max. memory is 8.0GB. [2023-12-20 23:36:29,477 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 23:36:29,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.90ms. Allocated memory is still 185.6MB. Free memory was 142.1MB in the beginning and 130.5MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-20 23:36:29,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.10ms. Allocated memory is still 185.6MB. Free memory was 130.5MB in the beginning and 128.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-20 23:36:29,478 INFO L158 Benchmark]: Boogie Preprocessor took 44.20ms. Allocated memory is still 185.6MB. Free memory was 128.8MB in the beginning and 127.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 23:36:29,478 INFO L158 Benchmark]: RCFGBuilder took 369.83ms. Allocated memory is still 185.6MB. Free memory was 126.7MB in the beginning and 113.4MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-20 23:36:29,479 INFO L158 Benchmark]: TraceAbstraction took 1566.44ms. Allocated memory was 185.6MB in the beginning and 281.0MB in the end (delta: 95.4MB). Free memory was 112.7MB in the beginning and 230.1MB in the end (delta: -117.3MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 23:36:29,480 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.90ms. Allocated memory is still 185.6MB. Free memory was 142.1MB in the beginning and 130.5MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.10ms. Allocated memory is still 185.6MB. Free memory was 130.5MB in the beginning and 128.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.20ms. Allocated memory is still 185.6MB. Free memory was 128.8MB in the beginning and 127.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 369.83ms. Allocated memory is still 185.6MB. Free memory was 126.7MB in the beginning and 113.4MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1566.44ms. Allocated memory was 185.6MB in the beginning and 281.0MB in the end (delta: 95.4MB). Free memory was 112.7MB in the beginning and 230.1MB in the end (delta: -117.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 280 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 146 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 134 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 43 PreInvPairs, 60 NumberOfFragments, 16 HoareAnnotationTreeSize, 43 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1092/1092 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-20 23:36:29,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...