/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-41.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 11:54:34,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 11:54:34,478 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 11:54:34,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 11:54:34,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 11:54:34,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 11:54:34,495 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 11:54:34,495 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 11:54:34,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 11:54:34,496 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 11:54:34,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 11:54:34,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 11:54:34,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 11:54:34,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 11:54:34,497 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 11:54:34,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 11:54:34,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 11:54:34,498 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 11:54:34,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 11:54:34,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 11:54:34,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 11:54:34,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 11:54:34,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 11:54:34,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 11:54:34,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 11:54:34,500 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 11:54:34,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 11:54:34,500 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 11:54:34,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 11:54:34,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 11:54:34,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 11:54:34,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 11:54:34,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:54:34,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 11:54:34,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 11:54:34,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 11:54:34,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 11:54:34,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 11:54:34,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 11:54:34,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 11:54:34,503 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 11:54:34,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 11:54:34,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 11:54:34,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 11:54:34,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 11:54:34,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 11:54:34,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 11:54:34,680 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 11:54:34,683 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 11:54:34,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-41.i [2023-12-19 11:54:35,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 11:54:35,992 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 11:54:35,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-41.i [2023-12-19 11:54:35,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a91ed65d/e6e94454acd346a88b3d3de3fadf454d/FLAGe7b6f44cd [2023-12-19 11:54:36,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a91ed65d/e6e94454acd346a88b3d3de3fadf454d [2023-12-19 11:54:36,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 11:54:36,013 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 11:54:36,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 11:54:36,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 11:54:36,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 11:54:36,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470bb8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36, skipping insertion in model container [2023-12-19 11:54:36,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,035 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 11:54:36,145 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_loopvsstraightlinecode_25-while_file-41.i[915,928] [2023-12-19 11:54:36,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:54:36,173 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 11:54:36,181 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_loopvsstraightlinecode_25-while_file-41.i[915,928] [2023-12-19 11:54:36,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:54:36,210 INFO L206 MainTranslator]: Completed translation [2023-12-19 11:54:36,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36 WrapperNode [2023-12-19 11:54:36,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 11:54:36,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 11:54:36,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 11:54:36,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 11:54:36,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,245 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-12-19 11:54:36,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 11:54:36,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 11:54:36,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 11:54:36,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 11:54:36,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,279 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]. [2023-12-19 11:54:36,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,285 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 11:54:36,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 11:54:36,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 11:54:36,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 11:54:36,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (1/1) ... [2023-12-19 11:54:36,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:54:36,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:54:36,327 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) [2023-12-19 11:54:36,337 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 [2023-12-19 11:54:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 11:54:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 11:54:36,354 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 11:54:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 11:54:36,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 11:54:36,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 11:54:36,399 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 11:54:36,400 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 11:54:36,557 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 11:54:36,585 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 11:54:36,585 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 11:54:36,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:54:36 BoogieIcfgContainer [2023-12-19 11:54:36,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 11:54:36,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 11:54:36,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 11:54:36,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 11:54:36,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:54:36" (1/3) ... [2023-12-19 11:54:36,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abcdd9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:54:36, skipping insertion in model container [2023-12-19 11:54:36,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:54:36" (2/3) ... [2023-12-19 11:54:36,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abcdd9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:54:36, skipping insertion in model container [2023-12-19 11:54:36,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:54:36" (3/3) ... [2023-12-19 11:54:36,591 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-41.i [2023-12-19 11:54:36,602 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 11:54:36,603 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 11:54:36,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 11:54:36,639 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;@3138f928, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 11:54:36,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 11:54:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 11:54:36,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 11:54:36,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:54:36,656 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:54:36,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:54:36,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:54:36,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1582176197, now seen corresponding path program 1 times [2023-12-19 11:54:36,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:54:36,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488607060] [2023-12-19 11:54:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:54:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:54:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:54:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:54:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:54:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:54:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:54:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:54:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:54:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:54:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:54:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:54:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:54:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:54:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:54:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:54:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:54:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:54:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 11:54:36,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:54:36,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488607060] [2023-12-19 11:54:36,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488607060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:54:36,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:54:36,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 11:54:36,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189027611] [2023-12-19 11:54:36,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:54:36,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 11:54:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:54:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 11:54:36,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:54:36,997 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 11:54:37,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:54:37,047 INFO L93 Difference]: Finished difference Result 86 states and 150 transitions. [2023-12-19 11:54:37,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 11:54:37,052 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2023-12-19 11:54:37,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:54:37,058 INFO L225 Difference]: With dead ends: 86 [2023-12-19 11:54:37,058 INFO L226 Difference]: Without dead ends: 42 [2023-12-19 11:54:37,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:54:37,062 INFO L413 NwaCegarLoop]: 58 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, 58 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 [2023-12-19 11:54:37,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:54:37,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-19 11:54:37,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-12-19 11:54:37,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 11:54:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 61 transitions. [2023-12-19 11:54:37,099 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 61 transitions. Word has length 99 [2023-12-19 11:54:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:54:37,099 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 61 transitions. [2023-12-19 11:54:37,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 11:54:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2023-12-19 11:54:37,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 11:54:37,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:54:37,105 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:54:37,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 11:54:37,105 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:54:37,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:54:37,106 INFO L85 PathProgramCache]: Analyzing trace with hash 509933509, now seen corresponding path program 1 times [2023-12-19 11:54:37,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:54:37,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604703030] [2023-12-19 11:54:37,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:54:37,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:54:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:54:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:54:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:54:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:54:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:54:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:54:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:54:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:54:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:54:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:54:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:54:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:54:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:54:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:54:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:54:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:54:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:38,558 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 11:54:38,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:54:38,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604703030] [2023-12-19 11:54:38,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604703030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:54:38,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:54:38,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 11:54:38,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657310202] [2023-12-19 11:54:38,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:54:38,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:54:38,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:54:38,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:54:38,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 11:54:38,571 INFO L87 Difference]: Start difference. First operand 42 states and 61 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:38,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:54:38,877 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2023-12-19 11:54:38,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 11:54:38,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 11:54:38,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:54:38,881 INFO L225 Difference]: With dead ends: 70 [2023-12-19 11:54:38,881 INFO L226 Difference]: Without dead ends: 68 [2023-12-19 11:54:38,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-19 11:54:38,883 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 39 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:54:38,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 199 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:54:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-19 11:54:38,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 50. [2023-12-19 11:54:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 11:54:38,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions. [2023-12-19 11:54:38,900 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 99 [2023-12-19 11:54:38,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:54:38,902 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 72 transitions. [2023-12-19 11:54:38,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2023-12-19 11:54:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 11:54:38,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:54:38,906 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:54:38,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 11:54:38,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:54:38,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:54:38,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2010026425, now seen corresponding path program 1 times [2023-12-19 11:54:38,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:54:38,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729871732] [2023-12-19 11:54:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:54:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:54:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:54:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:54:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:54:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:54:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:54:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:54:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:54:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:54:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:54:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:54:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:54:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:54:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:54:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:54:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:54:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:54:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 11:54:39,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:54:39,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729871732] [2023-12-19 11:54:39,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729871732] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:54:39,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:54:39,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 11:54:39,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745893621] [2023-12-19 11:54:39,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:54:39,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:54:39,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:54:39,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:54:39,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 11:54:39,596 INFO L87 Difference]: Start difference. First operand 50 states and 72 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:39,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:54:39,730 INFO L93 Difference]: Finished difference Result 139 states and 196 transitions. [2023-12-19 11:54:39,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 11:54:39,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 11:54:39,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:54:39,731 INFO L225 Difference]: With dead ends: 139 [2023-12-19 11:54:39,731 INFO L226 Difference]: Without dead ends: 90 [2023-12-19 11:54:39,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-19 11:54:39,733 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 65 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:54:39,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 287 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:54:39,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-19 11:54:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2023-12-19 11:54:39,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 55 states have internal predecessors, (63), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 11:54:39,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2023-12-19 11:54:39,744 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 99 [2023-12-19 11:54:39,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:54:39,744 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2023-12-19 11:54:39,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:39,745 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2023-12-19 11:54:39,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 11:54:39,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:54:39,745 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:54:39,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 11:54:39,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:54:39,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:54:39,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1189991879, now seen corresponding path program 1 times [2023-12-19 11:54:39,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:54:39,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787642725] [2023-12-19 11:54:39,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:54:39,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:54:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:54:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:54:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:54:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:54:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:54:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:54:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:54:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:54:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:54:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:54:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:54:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:54:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:54:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:54:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:54:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:54:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:40,400 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 11:54:40,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:54:40,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787642725] [2023-12-19 11:54:40,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787642725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:54:40,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:54:40,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 11:54:40,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726300304] [2023-12-19 11:54:40,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:54:40,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:54:40,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:54:40,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:54:40,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 11:54:40,402 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:54:40,665 INFO L93 Difference]: Finished difference Result 101 states and 135 transitions. [2023-12-19 11:54:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 11:54:40,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 11:54:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:54:40,668 INFO L225 Difference]: With dead ends: 101 [2023-12-19 11:54:40,668 INFO L226 Difference]: Without dead ends: 99 [2023-12-19 11:54:40,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-19 11:54:40,669 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 30 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:54:40,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 231 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:54:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-19 11:54:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2023-12-19 11:54:40,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 61 states have internal predecessors, (71), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 11:54:40,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 123 transitions. [2023-12-19 11:54:40,681 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 123 transitions. Word has length 99 [2023-12-19 11:54:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:54:40,681 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 123 transitions. [2023-12-19 11:54:40,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:40,681 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 123 transitions. [2023-12-19 11:54:40,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 11:54:40,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:54:40,682 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:54:40,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 11:54:40,682 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:54:40,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:54:40,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1329968055, now seen corresponding path program 1 times [2023-12-19 11:54:40,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:54:40,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731746162] [2023-12-19 11:54:40,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:54:40,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:54:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:54:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:54:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:54:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:54:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:54:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:54:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:54:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:54:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:54:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:54:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:54:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:54:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:54:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:54:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:54:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:54:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 11:54:41,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:54:41,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731746162] [2023-12-19 11:54:41,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731746162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:54:41,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:54:41,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 11:54:41,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920202354] [2023-12-19 11:54:41,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:54:41,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:54:41,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:54:41,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:54:41,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 11:54:41,243 INFO L87 Difference]: Start difference. First operand 89 states and 123 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:41,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:54:41,385 INFO L93 Difference]: Finished difference Result 102 states and 136 transitions. [2023-12-19 11:54:41,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 11:54:41,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-12-19 11:54:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:54:41,386 INFO L225 Difference]: With dead ends: 102 [2023-12-19 11:54:41,386 INFO L226 Difference]: Without dead ends: 100 [2023-12-19 11:54:41,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-12-19 11:54:41,387 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 34 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:54:41,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 202 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:54:41,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-19 11:54:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2023-12-19 11:54:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 57 states have internal predecessors, (65), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-19 11:54:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2023-12-19 11:54:41,399 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 99 [2023-12-19 11:54:41,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:54:41,400 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2023-12-19 11:54:41,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2023-12-19 11:54:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-19 11:54:41,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:54:41,401 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:54:41,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 11:54:41,401 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:54:41,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:54:41,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1381377011, now seen corresponding path program 1 times [2023-12-19 11:54:41,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:54:41,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461693468] [2023-12-19 11:54:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:54:41,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:54:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 11:54:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 11:54:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 11:54:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 11:54:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 11:54:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 11:54:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 11:54:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 11:54:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 11:54:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 11:54:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 11:54:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 11:54:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 11:54:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 11:54:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 11:54:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 11:54:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 11:54:41,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:54:41,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461693468] [2023-12-19 11:54:41,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461693468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:54:41,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:54:41,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 11:54:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33707560] [2023-12-19 11:54:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:54:41,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 11:54:41,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:54:41,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 11:54:41,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 11:54:41,475 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:54:41,491 INFO L93 Difference]: Finished difference Result 160 states and 221 transitions. [2023-12-19 11:54:41,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 11:54:41,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-12-19 11:54:41,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:54:41,492 INFO L225 Difference]: With dead ends: 160 [2023-12-19 11:54:41,492 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 11:54:41,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 11:54:41,493 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:54:41,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 102 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:54:41,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 11:54:41,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 11:54:41,494 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) [2023-12-19 11:54:41,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 11:54:41,494 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2023-12-19 11:54:41,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:54:41,494 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 11:54:41,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 11:54:41,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 11:54:41,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 11:54:41,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 11:54:41,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 11:54:41,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 11:54:41,709 INFO L902 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: true [2023-12-19 11:54:41,709 INFO L902 garLoopResultBuilder]: At program point L64-1(line 64) the Hoare annotation is: true [2023-12-19 11:54:41,709 INFO L895 garLoopResultBuilder]: At program point L97-2(lines 97 103) the Hoare annotation is: (or (= ~var_1_5~0 (* (div ~var_1_5~0 256) 256)) (let ((.cse2 (* (div ~var_1_8~0 256) 256))) (let ((.cse0 (= (+ .cse2 1) ~var_1_8~0)) (.cse1 (= (* (div ~var_1_9~0 256) 256) ~var_1_9~0))) (and (or .cse0 (and .cse1 (= .cse2 ~var_1_8~0))) (or (not .cse0) (not .cse1)))))) [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L97-3(lines 97 103) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L902 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: true [2023-12-19 11:54:41,710 INFO L902 garLoopResultBuilder]: At program point L85-1(line 85) the Hoare annotation is: true [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 60) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L902 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: true [2023-12-19 11:54:41,710 INFO L902 garLoopResultBuilder]: At program point L73-1(line 73) the Hoare annotation is: true [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 61) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 11:54:41,710 INFO L899 garLoopResultBuilder]: For program point L86(lines 62 87) no Hoare annotation was computed. [2023-12-19 11:54:41,711 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 57) no Hoare annotation was computed. [2023-12-19 11:54:41,711 INFO L902 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: true [2023-12-19 11:54:41,711 INFO L902 garLoopResultBuilder]: At program point L82-1(line 82) the Hoare annotation is: true [2023-12-19 11:54:41,711 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-12-19 11:54:41,711 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 45) no Hoare annotation was computed. [2023-12-19 11:54:41,712 INFO L899 garLoopResultBuilder]: For program point L41-2(lines 36 61) no Hoare annotation was computed. [2023-12-19 11:54:41,712 INFO L902 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: true [2023-12-19 11:54:41,712 INFO L902 garLoopResultBuilder]: At program point L70-1(line 70) the Hoare annotation is: true [2023-12-19 11:54:41,712 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 39) no Hoare annotation was computed. [2023-12-19 11:54:41,712 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 39) no Hoare annotation was computed. [2023-12-19 11:54:41,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 11:54:41,712 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2023-12-19 11:54:41,712 INFO L902 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: true [2023-12-19 11:54:41,713 INFO L902 garLoopResultBuilder]: At program point L79-1(line 79) the Hoare annotation is: true [2023-12-19 11:54:41,713 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 50) no Hoare annotation was computed. [2023-12-19 11:54:41,713 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 11:54:41,713 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-12-19 11:54:41,713 INFO L902 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2023-12-19 11:54:41,713 INFO L902 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: true [2023-12-19 11:54:41,713 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-12-19 11:54:41,713 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 49) no Hoare annotation was computed. [2023-12-19 11:54:41,713 INFO L902 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: true [2023-12-19 11:54:41,714 INFO L902 garLoopResultBuilder]: At program point L76-1(line 76) the Hoare annotation is: true [2023-12-19 11:54:41,714 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-12-19 11:54:41,714 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 11:54:41,714 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 11:54:41,714 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 11:54:41,714 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 11:54:41,716 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-19 11:54:41,718 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 11:54:41,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:54:41 BoogieIcfgContainer [2023-12-19 11:54:41,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 11:54:41,726 INFO L158 Benchmark]: Toolchain (without parser) took 5714.65ms. Allocated memory was 225.4MB in the beginning and 355.5MB in the end (delta: 130.0MB). Free memory was 182.3MB in the beginning and 291.7MB in the end (delta: -109.4MB). Peak memory consumption was 197.7MB. Max. memory is 8.0GB. [2023-12-19 11:54:41,726 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:54:41,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.63ms. Allocated memory is still 225.4MB. Free memory was 181.9MB in the beginning and 169.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 11:54:41,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.48ms. Allocated memory is still 225.4MB. Free memory was 169.7MB in the beginning and 168.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-19 11:54:41,727 INFO L158 Benchmark]: Boogie Preprocessor took 43.44ms. Allocated memory is still 225.4MB. Free memory was 168.0MB in the beginning and 165.5MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 11:54:41,727 INFO L158 Benchmark]: RCFGBuilder took 295.77ms. Allocated memory is still 225.4MB. Free memory was 165.5MB in the beginning and 149.8MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 11:54:41,727 INFO L158 Benchmark]: TraceAbstraction took 5138.70ms. Allocated memory was 225.4MB in the beginning and 355.5MB in the end (delta: 130.0MB). Free memory was 149.2MB in the beginning and 291.7MB in the end (delta: -142.5MB). Peak memory consumption was 165.2MB. Max. memory is 8.0GB. [2023-12-19 11:54:41,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 186.6MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.63ms. Allocated memory is still 225.4MB. Free memory was 181.9MB in the beginning and 169.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.48ms. Allocated memory is still 225.4MB. Free memory was 169.7MB in the beginning and 168.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.44ms. Allocated memory is still 225.4MB. Free memory was 168.0MB in the beginning and 165.5MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 295.77ms. Allocated memory is still 225.4MB. Free memory was 165.5MB in the beginning and 149.8MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5138.70ms. Allocated memory was 225.4MB in the beginning and 355.5MB in the end (delta: 130.0MB). Free memory was 149.2MB in the beginning and 291.7MB in the end (delta: -142.5MB). Peak memory consumption was 165.2MB. 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, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 1079 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 717 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 362 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=4, InterpolantAutomatonStates: 46, 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, 6 MinimizatonAttempts, 50 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 101 PreInvPairs, 130 NumberOfFragments, 70 HoareAnnotationTreeSize, 101 FormulaSimplifications, 770 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FormulaSimplificationsInter, 1179 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 595 NumberOfCodeBlocks, 595 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 589 ConstructedInterpolants, 0 QuantifiedInterpolants, 2321 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2880/2880 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: 97]: Loop Invariant Derived loop invariant: ((var_1_5 == ((var_1_5 / 256) * 256)) || ((((((var_1_8 / 256) * 256) + 1) == var_1_8) || ((((var_1_9 / 256) * 256) == var_1_9) && (((var_1_8 / 256) * 256) == var_1_8))) && (!(((((var_1_8 / 256) * 256) + 1) == var_1_8)) || !((((var_1_9 / 256) * 256) == var_1_9))))) RESULT: Ultimate proved your program to be correct! [2023-12-19 11:54:41,753 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...