/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:15:23,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:15:23,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:15:23,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:15:23,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:15:23,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:15:23,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:15:23,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:15:23,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:15:23,178 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:15:23,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:15:23,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:15:23,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:15:23,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:15:23,180 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:15:23,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:15:23,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:15:23,180 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:15:23,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:15:23,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:15:23,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:15:23,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:15:23,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:15:23,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:15:23,181 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:15:23,182 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:15:23,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:15:23,182 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:15:23,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:15:23,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:15:23,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:15:23,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:15:23,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:15:23,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:15:23,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:15:23,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:15:23,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:15:23,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:15:23,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:15:23,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:15:23,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:15:23,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:15:23,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:15:23,185 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:15:23,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:15:23,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:15:23,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:15:23,409 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:15:23,409 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:15:23,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2023-12-16 01:15:24,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:15:24,752 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:15:24,752 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label55.c [2023-12-16 01:15:24,765 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc44ac60e/db03e123e8314bb9ac3a26bf46aabd14/FLAG4e0d6c911 [2023-12-16 01:15:24,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc44ac60e/db03e123e8314bb9ac3a26bf46aabd14 [2023-12-16 01:15:24,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:15:24,777 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:15:24,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:15:24,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:15:24,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:15:24,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:15:24" (1/1) ... [2023-12-16 01:15:24,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676b42ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:24, skipping insertion in model container [2023-12-16 01:15:24,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:15:24" (1/1) ... [2023-12-16 01:15:24,857 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:15:25,093 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label55.c[19349,19362] [2023-12-16 01:15:25,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:15:25,131 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:15:25,209 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label55.c[19349,19362] [2023-12-16 01:15:25,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:15:25,233 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:15:25,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25 WrapperNode [2023-12-16 01:15:25,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:15:25,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:15:25,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:15:25,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:15:25,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,297 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658 [2023-12-16 01:15:25,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:15:25,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:15:25,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:15:25,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:15:25,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,321 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:15:25,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:15:25,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:15:25,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:15:25,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:15:25,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (1/1) ... [2023-12-16 01:15:25,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:15:25,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:15:25,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:15:25,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:15:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:15:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:15:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:15:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:15:25,544 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:15:25,545 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:15:26,184 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:15:26,237 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:15:26,238 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 01:15:26,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:15:26 BoogieIcfgContainer [2023-12-16 01:15:26,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:15:26,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:15:26,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:15:26,242 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:15:26,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:15:24" (1/3) ... [2023-12-16 01:15:26,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2765602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:15:26, skipping insertion in model container [2023-12-16 01:15:26,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:15:25" (2/3) ... [2023-12-16 01:15:26,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2765602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:15:26, skipping insertion in model container [2023-12-16 01:15:26,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:15:26" (3/3) ... [2023-12-16 01:15:26,245 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label55.c [2023-12-16 01:15:26,257 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:15:26,257 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 01:15:26,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:15:26,324 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;@53557d50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:15:26,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 01:15:26,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 134 states have (on average 1.9776119402985075) internal successors, (265), 135 states have internal predecessors, (265), 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) [2023-12-16 01:15:26,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 01:15:26,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:26,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:26,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:26,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:26,348 INFO L85 PathProgramCache]: Analyzing trace with hash 684259673, now seen corresponding path program 1 times [2023-12-16 01:15:26,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:26,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932183941] [2023-12-16 01:15:26,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:26,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:26,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:26,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932183941] [2023-12-16 01:15:26,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932183941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:26,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:26,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:26,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553176805] [2023-12-16 01:15:26,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:26,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:15:26,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:26,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:15:26,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:15:26,625 INFO L87 Difference]: Start difference. First operand has 136 states, 134 states have (on average 1.9776119402985075) internal successors, (265), 135 states have internal predecessors, (265), 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) Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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) [2023-12-16 01:15:26,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:26,649 INFO L93 Difference]: Finished difference Result 271 states and 529 transitions. [2023-12-16 01:15:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:15:26,651 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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) Word has length 110 [2023-12-16 01:15:26,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:26,657 INFO L225 Difference]: With dead ends: 271 [2023-12-16 01:15:26,658 INFO L226 Difference]: Without dead ends: 134 [2023-12-16 01:15:26,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:15:26,662 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:26,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:15:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-12-16 01:15:26,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-12-16 01:15:26,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.5037593984962405) internal successors, (200), 133 states have internal predecessors, (200), 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) [2023-12-16 01:15:26,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 200 transitions. [2023-12-16 01:15:26,691 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 200 transitions. Word has length 110 [2023-12-16 01:15:26,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:26,691 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 200 transitions. [2023-12-16 01:15:26,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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) [2023-12-16 01:15:26,692 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 200 transitions. [2023-12-16 01:15:26,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 01:15:26,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:26,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:26,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:15:26,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:26,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:26,694 INFO L85 PathProgramCache]: Analyzing trace with hash -826181618, now seen corresponding path program 1 times [2023-12-16 01:15:26,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:26,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771289453] [2023-12-16 01:15:26,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:26,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:26,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:26,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771289453] [2023-12-16 01:15:26,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771289453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:26,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:26,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:26,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018726935] [2023-12-16 01:15:26,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:26,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:26,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:26,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:26,906 INFO L87 Difference]: Start difference. First operand 134 states and 200 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2023-12-16 01:15:27,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:27,325 INFO L93 Difference]: Finished difference Result 398 states and 597 transitions. [2023-12-16 01:15:27,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:27,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) Word has length 110 [2023-12-16 01:15:27,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:27,328 INFO L225 Difference]: With dead ends: 398 [2023-12-16 01:15:27,328 INFO L226 Difference]: Without dead ends: 265 [2023-12-16 01:15:27,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:27,329 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 40 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:27,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 17 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:15:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-16 01:15:27,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2023-12-16 01:15:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.481060606060606) internal successors, (391), 264 states have internal predecessors, (391), 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) [2023-12-16 01:15:27,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 391 transitions. [2023-12-16 01:15:27,347 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 391 transitions. Word has length 110 [2023-12-16 01:15:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:27,347 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 391 transitions. [2023-12-16 01:15:27,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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) [2023-12-16 01:15:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 391 transitions. [2023-12-16 01:15:27,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 01:15:27,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:27,349 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:27,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:15:27,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:27,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash -961832202, now seen corresponding path program 1 times [2023-12-16 01:15:27,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:27,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218136695] [2023-12-16 01:15:27,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:27,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:27,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:27,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218136695] [2023-12-16 01:15:27,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218136695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:27,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:27,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:27,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823179936] [2023-12-16 01:15:27,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:27,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:27,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:27,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:27,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:27,425 INFO L87 Difference]: Start difference. First operand 265 states and 391 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2023-12-16 01:15:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:27,761 INFO L93 Difference]: Finished difference Result 791 states and 1170 transitions. [2023-12-16 01:15:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:27,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) Word has length 115 [2023-12-16 01:15:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:27,766 INFO L225 Difference]: With dead ends: 791 [2023-12-16 01:15:27,766 INFO L226 Difference]: Without dead ends: 527 [2023-12-16 01:15:27,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:27,774 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:27,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 27 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:15:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-12-16 01:15:27,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2023-12-16 01:15:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.414448669201521) internal successors, (744), 526 states have internal predecessors, (744), 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) [2023-12-16 01:15:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 744 transitions. [2023-12-16 01:15:27,808 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 744 transitions. Word has length 115 [2023-12-16 01:15:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:27,808 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 744 transitions. [2023-12-16 01:15:27,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2023-12-16 01:15:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 744 transitions. [2023-12-16 01:15:27,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 01:15:27,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:27,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:27,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:15:27,811 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:27,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:27,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1969668497, now seen corresponding path program 1 times [2023-12-16 01:15:27,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:27,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144951446] [2023-12-16 01:15:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:27,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:27,971 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:15:27,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:27,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144951446] [2023-12-16 01:15:27,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144951446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:27,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:27,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:27,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237478923] [2023-12-16 01:15:27,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:27,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:27,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:27,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:27,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:27,973 INFO L87 Difference]: Start difference. First operand 527 states and 744 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) [2023-12-16 01:15:28,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:28,251 INFO L93 Difference]: Finished difference Result 1446 states and 2031 transitions. [2023-12-16 01:15:28,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:28,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) Word has length 125 [2023-12-16 01:15:28,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:28,255 INFO L225 Difference]: With dead ends: 1446 [2023-12-16 01:15:28,255 INFO L226 Difference]: Without dead ends: 920 [2023-12-16 01:15:28,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:28,263 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:28,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 54 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:15:28,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2023-12-16 01:15:28,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 789. [2023-12-16 01:15:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3223350253807107) internal successors, (1042), 788 states have internal predecessors, (1042), 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) [2023-12-16 01:15:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1042 transitions. [2023-12-16 01:15:28,285 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1042 transitions. Word has length 125 [2023-12-16 01:15:28,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:28,285 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1042 transitions. [2023-12-16 01:15:28,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) [2023-12-16 01:15:28,285 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1042 transitions. [2023-12-16 01:15:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 01:15:28,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:28,292 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:28,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:15:28,292 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:28,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:28,293 INFO L85 PathProgramCache]: Analyzing trace with hash -149109057, now seen corresponding path program 1 times [2023-12-16 01:15:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:28,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417384277] [2023-12-16 01:15:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 01:15:28,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:28,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417384277] [2023-12-16 01:15:28,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417384277] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:28,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:15:28,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:15:28,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009748242] [2023-12-16 01:15:28,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:28,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:28,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:28,414 INFO L87 Difference]: Start difference. First operand 789 states and 1042 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 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) [2023-12-16 01:15:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:28,707 INFO L93 Difference]: Finished difference Result 1839 states and 2436 transitions. [2023-12-16 01:15:28,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:28,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 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) Word has length 126 [2023-12-16 01:15:28,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:28,710 INFO L225 Difference]: With dead ends: 1839 [2023-12-16 01:15:28,710 INFO L226 Difference]: Without dead ends: 1051 [2023-12-16 01:15:28,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:15:28,711 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 127 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:28,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 72 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:15:28,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2023-12-16 01:15:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 920. [2023-12-16 01:15:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 919 states have (on average 1.2894450489662677) internal successors, (1185), 919 states have internal predecessors, (1185), 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) [2023-12-16 01:15:28,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1185 transitions. [2023-12-16 01:15:28,723 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1185 transitions. Word has length 126 [2023-12-16 01:15:28,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:28,724 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 1185 transitions. [2023-12-16 01:15:28,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 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) [2023-12-16 01:15:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1185 transitions. [2023-12-16 01:15:28,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 01:15:28,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:28,725 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:28,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:15:28,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:28,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:28,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2025768569, now seen corresponding path program 1 times [2023-12-16 01:15:28,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:28,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23397199] [2023-12-16 01:15:28,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:28,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 01:15:28,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:28,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23397199] [2023-12-16 01:15:28,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23397199] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:15:28,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496566856] [2023-12-16 01:15:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:28,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:15:28,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:15:28,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:15:28,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:15:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:28,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:15:28,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:15:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 01:15:29,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:15:29,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496566856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:29,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:15:29,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 01:15:29,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577369495] [2023-12-16 01:15:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:29,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:29,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:29,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:29,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:15:29,090 INFO L87 Difference]: Start difference. First operand 920 states and 1185 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2023-12-16 01:15:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:29,410 INFO L93 Difference]: Finished difference Result 2363 states and 3062 transitions. [2023-12-16 01:15:29,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:29,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) Word has length 130 [2023-12-16 01:15:29,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:29,418 INFO L225 Difference]: With dead ends: 2363 [2023-12-16 01:15:29,418 INFO L226 Difference]: Without dead ends: 1444 [2023-12-16 01:15:29,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:15:29,420 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:29,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 202 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:15:29,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2023-12-16 01:15:29,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1182. [2023-12-16 01:15:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1181 states have (on average 1.239627434377646) internal successors, (1464), 1181 states have internal predecessors, (1464), 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) [2023-12-16 01:15:29,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1464 transitions. [2023-12-16 01:15:29,441 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1464 transitions. Word has length 130 [2023-12-16 01:15:29,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:29,442 INFO L495 AbstractCegarLoop]: Abstraction has 1182 states and 1464 transitions. [2023-12-16 01:15:29,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2023-12-16 01:15:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1464 transitions. [2023-12-16 01:15:29,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 01:15:29,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:15:29,444 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:29,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 01:15:29,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-16 01:15:29,649 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:15:29,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:15:29,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2072692956, now seen corresponding path program 1 times [2023-12-16 01:15:29,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:15:29,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095806798] [2023-12-16 01:15:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:29,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:15:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 01:15:29,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:15:29,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095806798] [2023-12-16 01:15:29,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095806798] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:15:29,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494243451] [2023-12-16 01:15:29,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:15:29,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:15:29,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:15:29,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:15:29,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 01:15:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:15:29,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:15:29,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:15:30,032 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 01:15:30,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:15:30,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494243451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:15:30,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:15:30,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 01:15:30,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757238360] [2023-12-16 01:15:30,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:15:30,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:15:30,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:15:30,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:15:30,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:15:30,034 INFO L87 Difference]: Start difference. First operand 1182 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2023-12-16 01:15:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:15:30,307 INFO L93 Difference]: Finished difference Result 1706 states and 2078 transitions. [2023-12-16 01:15:30,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:15:30,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) Word has length 151 [2023-12-16 01:15:30,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:15:30,307 INFO L225 Difference]: With dead ends: 1706 [2023-12-16 01:15:30,308 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 01:15:30,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:15:30,310 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 44 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:15:30,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 26 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:15:30,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 01:15:30,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 01:15:30,311 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) [2023-12-16 01:15:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 01:15:30,311 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 151 [2023-12-16 01:15:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:15:30,312 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 01:15:30,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2023-12-16 01:15:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 01:15:30,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 01:15:30,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 01:15:30,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 01:15:30,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-16 01:15:30,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 01:15:30,566 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2023-12-16 01:15:30,567 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2023-12-16 01:15:30,568 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,569 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,570 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,571 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,572 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,573 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,573 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2023-12-16 01:15:30,573 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2023-12-16 01:15:30,573 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2023-12-16 01:15:30,573 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2023-12-16 01:15:30,573 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,573 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,574 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,574 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,574 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,574 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,574 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2023-12-16 01:15:30,574 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2023-12-16 01:15:30,574 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2023-12-16 01:15:30,574 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2023-12-16 01:15:30,575 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2023-12-16 01:15:30,575 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2023-12-16 01:15:30,575 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2023-12-16 01:15:30,575 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2023-12-16 01:15:30,575 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2023-12-16 01:15:30,575 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,575 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,576 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,576 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,576 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,576 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2023-12-16 01:15:30,576 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2023-12-16 01:15:30,576 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2023-12-16 01:15:30,576 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,576 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,577 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,577 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,577 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,577 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2023-12-16 01:15:30,577 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2023-12-16 01:15:30,577 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2023-12-16 01:15:30,578 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2023-12-16 01:15:30,578 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2023-12-16 01:15:30,578 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2023-12-16 01:15:30,578 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2023-12-16 01:15:30,580 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2023-12-16 01:15:30,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 01:15:30,580 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 604) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,581 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2023-12-16 01:15:30,582 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (= ~a17~0 1) (= ~a20~0 1)) (< ~a16~0 6) (< ~a17~0 1) (and .cse0 (<= 15 ~a8~0)))) [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 519) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2023-12-16 01:15:30,583 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,584 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,584 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,584 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,584 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2023-12-16 01:15:30,584 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2023-12-16 01:15:30,584 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2023-12-16 01:15:30,584 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2023-12-16 01:15:30,584 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2023-12-16 01:15:30,587 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:15:30,589 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:15:30,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:15:30 BoogieIcfgContainer [2023-12-16 01:15:30,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:15:30,600 INFO L158 Benchmark]: Toolchain (without parser) took 5822.60ms. Allocated memory was 228.6MB in the beginning and 331.4MB in the end (delta: 102.8MB). Free memory was 177.0MB in the beginning and 233.7MB in the end (delta: -56.7MB). Peak memory consumption was 47.1MB. Max. memory is 8.0GB. [2023-12-16 01:15:30,600 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 177.2MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:15:30,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.10ms. Allocated memory is still 228.6MB. Free memory was 177.0MB in the beginning and 148.7MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 01:15:30,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.77ms. Allocated memory is still 228.6MB. Free memory was 148.7MB in the beginning and 142.9MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 01:15:30,601 INFO L158 Benchmark]: Boogie Preprocessor took 54.06ms. Allocated memory is still 228.6MB. Free memory was 142.9MB in the beginning and 137.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 01:15:30,601 INFO L158 Benchmark]: RCFGBuilder took 885.77ms. Allocated memory is still 228.6MB. Free memory was 137.7MB in the beginning and 112.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.9MB. Max. memory is 8.0GB. [2023-12-16 01:15:30,601 INFO L158 Benchmark]: TraceAbstraction took 4359.76ms. Allocated memory was 228.6MB in the beginning and 331.4MB in the end (delta: 102.8MB). Free memory was 111.8MB in the beginning and 233.7MB in the end (delta: -122.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:15:30,603 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 177.2MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 456.10ms. Allocated memory is still 228.6MB. Free memory was 177.0MB in the beginning and 148.7MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.77ms. Allocated memory is still 228.6MB. Free memory was 148.7MB in the beginning and 142.9MB in the end (delta: 5.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.06ms. Allocated memory is still 228.6MB. Free memory was 142.9MB in the beginning and 137.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 885.77ms. Allocated memory is still 228.6MB. Free memory was 137.7MB in the beginning and 112.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.9MB. Max. memory is 8.0GB. * TraceAbstraction took 4359.76ms. Allocated memory was 228.6MB in the beginning and 331.4MB in the end (delta: 102.8MB). Free memory was 111.8MB in the beginning and 233.7MB in the end (delta: -122.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 519]: 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 1 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 532 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 532 mSDsluCounter, 598 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 379 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1981 IncrementalHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 379 mSolverCounterUnsat, 570 mSDtfsCounter, 1981 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 295 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1182occurred in iteration=6, InterpolantAutomatonStates: 20, 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, 7 MinimizatonAttempts, 524 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 14 NumberOfFragments, 24 HoareAnnotationTreeSize, 1 FormulaSimplifications, 174 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FormulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1148 NumberOfCodeBlocks, 1148 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1139 ConstructedInterpolants, 0 QuantifiedInterpolants, 2133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 605 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 205/211 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: 593]: Loop Invariant Derived loop invariant: ((((((a21 == 1) && (a17 == 1)) && (a20 == 1)) || (a16 < 6)) || (a17 < 1)) || ((a21 == 1) && (15 <= a8))) RESULT: Ultimate proved your program to be correct! [2023-12-16 01:15:30,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...