/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:39:28,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:39:28,873 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 17:39:28,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:39:28,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:39:28,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:39:28,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:39:28,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:39:28,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:39:28,898 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:39:28,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:39:28,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:39:28,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:39:28,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:39:28,900 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:39:28,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:39:28,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:39:28,901 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:39:28,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:39:28,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:39:28,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:39:28,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:39:28,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:39:28,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:39:28,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:39:28,904 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:39:28,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:39:28,904 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:39:28,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:39:28,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:39:28,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:39:28,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:39:28,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:39:28,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:39:28,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:39:28,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:39:28,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:39:28,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:39:28,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:39:28,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:39:28,909 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:39:28,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:39:28,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:39:28,910 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:39:29,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:39:29,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:39:29,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:39:29,186 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:39:29,186 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:39:29,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c [2023-12-15 17:39:30,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:39:30,963 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:39:30,964 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c [2023-12-15 17:39:31,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7b90dd39/28815409379d4000826e47934ce7e76d/FLAG1fc94f4cd [2023-12-15 17:39:31,036 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7b90dd39/28815409379d4000826e47934ce7e76d [2023-12-15 17:39:31,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:39:31,041 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:39:31,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:39:31,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:39:31,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:39:31,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:39:31" (1/1) ... [2023-12-15 17:39:31,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c29b1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:31, skipping insertion in model container [2023-12-15 17:39:31,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:39:31" (1/1) ... [2023-12-15 17:39:31,249 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:39:32,885 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c[382357,382370] [2023-12-15 17:39:32,906 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c[383339,383352] [2023-12-15 17:39:33,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:39:33,177 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:39:33,884 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c[382357,382370] [2023-12-15 17:39:33,888 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c[383339,383352] [2023-12-15 17:39:33,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:39:33,979 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:39:33,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33 WrapperNode [2023-12-15 17:39:33,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:39:33,982 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:39:33,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:39:33,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:39:33,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,412 INFO L138 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13113 [2023-12-15 17:39:34,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:39:34,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:39:34,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:39:34,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:39:34,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,736 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]. [2023-12-15 17:39:34,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:34,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:35,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:35,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:39:35,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:39:35,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:39:35,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:39:35,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (1/1) ... [2023-12-15 17:39:35,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:39:35,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:39:35,112 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) [2023-12-15 17:39:35,137 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 [2023-12-15 17:39:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:39:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:39:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:39:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:39:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:39:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:39:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:39:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:39:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:39:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:39:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:39:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:39:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:39:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:39:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:39:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:39:35,299 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:39:35,301 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:39:42,173 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:39:42,256 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:39:42,256 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-12-15 17:39:42,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:39:42 BoogieIcfgContainer [2023-12-15 17:39:42,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:39:42,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:39:42,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:39:42,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:39:42,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:39:31" (1/3) ... [2023-12-15 17:39:42,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a242d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:39:42, skipping insertion in model container [2023-12-15 17:39:42,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:33" (2/3) ... [2023-12-15 17:39:42,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a242d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:39:42, skipping insertion in model container [2023-12-15 17:39:42,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:39:42" (3/3) ... [2023-12-15 17:39:42,264 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.10.cil-2.c [2023-12-15 17:39:42,279 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:39:42,279 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:39:42,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:39:42,359 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;@554f92db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:39:42,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:39:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 2425 states, 2392 states have (on average 1.8775083612040133) internal successors, (4491), 2395 states have internal predecessors, (4491), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-15 17:39:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:39:42,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:39:42,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:39:42,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:39:42,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:39:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash -951249728, now seen corresponding path program 1 times [2023-12-15 17:39:42,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:39:42,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721017648] [2023-12-15 17:39:42,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:39:42,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:39:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:39:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:42,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:39:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:42,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:39:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:39:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:42,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:39:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:39:42,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:39:42,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721017648] [2023-12-15 17:39:42,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721017648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:39:42,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:39:42,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:39:42,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031223108] [2023-12-15 17:39:42,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:39:42,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:39:42,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:39:42,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:39:42,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:39:42,974 INFO L87 Difference]: Start difference. First operand has 2425 states, 2392 states have (on average 1.8775083612040133) internal successors, (4491), 2395 states have internal predecessors, (4491), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:44,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:39:44,665 INFO L93 Difference]: Finished difference Result 4952 states and 9258 transitions. [2023-12-15 17:39:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:39:44,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:39:44,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:39:44,696 INFO L225 Difference]: With dead ends: 4952 [2023-12-15 17:39:44,697 INFO L226 Difference]: Without dead ends: 2531 [2023-12-15 17:39:44,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:39:44,712 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 837 mSDsluCounter, 12160 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 16379 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:39:44,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 16379 Invalid, 963 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:39:44,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2023-12-15 17:39:44,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2421. [2023-12-15 17:39:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8396818752616158) internal successors, (4395), 2391 states have internal predecessors, (4395), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-15 17:39:44,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4443 transitions. [2023-12-15 17:39:44,858 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4443 transitions. Word has length 141 [2023-12-15 17:39:44,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:39:44,858 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4443 transitions. [2023-12-15 17:39:44,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:44,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4443 transitions. [2023-12-15 17:39:44,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:39:44,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:39:44,870 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:39:44,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:39:44,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:39:44,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:39:44,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1626409854, now seen corresponding path program 1 times [2023-12-15 17:39:44,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:39:44,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132130746] [2023-12-15 17:39:44,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:39:44,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:39:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:45,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:39:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:39:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:39:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:45,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:39:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:39:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:45,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:39:45,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:39:45,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132130746] [2023-12-15 17:39:45,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132130746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:39:45,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:39:45,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:39:45,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002165704] [2023-12-15 17:39:45,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:39:45,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:39:45,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:39:45,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:39:45,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:39:45,230 INFO L87 Difference]: Start difference. First operand 2421 states and 4443 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:48,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:39:48,963 INFO L93 Difference]: Finished difference Result 3245 states and 5826 transitions. [2023-12-15 17:39:48,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:39:48,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:39:48,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:39:48,980 INFO L225 Difference]: With dead ends: 3245 [2023-12-15 17:39:48,981 INFO L226 Difference]: Without dead ends: 2961 [2023-12-15 17:39:48,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:39:48,985 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5163 mSDsluCounter, 17153 mSDsCounter, 0 mSdLazyCounter, 3302 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 21516 SdHoareTripleChecker+Invalid, 3364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:39:48,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 21516 Invalid, 3364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 3302 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-15 17:39:48,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2023-12-15 17:39:49,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2724. [2023-12-15 17:39:49,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2663 states have (on average 1.819752159218926) internal successors, (4846), 2667 states have internal predecessors, (4846), 45 states have call successors, (45), 12 states have call predecessors, (45), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2023-12-15 17:39:49,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 4943 transitions. [2023-12-15 17:39:49,090 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 4943 transitions. Word has length 141 [2023-12-15 17:39:49,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:39:49,091 INFO L495 AbstractCegarLoop]: Abstraction has 2724 states and 4943 transitions. [2023-12-15 17:39:49,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:49,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 4943 transitions. [2023-12-15 17:39:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:39:49,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:39:49,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:39:49,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:39:49,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:39:49,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:39:49,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1138362748, now seen corresponding path program 1 times [2023-12-15 17:39:49,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:39:49,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640092516] [2023-12-15 17:39:49,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:39:49,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:39:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:39:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:39:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:49,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:39:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:39:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:49,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:39:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:39:49,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:39:49,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640092516] [2023-12-15 17:39:49,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640092516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:39:49,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:39:49,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:39:49,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734681828] [2023-12-15 17:39:49,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:39:49,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:39:49,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:39:49,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:39:49,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:39:49,449 INFO L87 Difference]: Start difference. First operand 2724 states and 4943 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:52,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:39:52,614 INFO L93 Difference]: Finished difference Result 4288 states and 7546 transitions. [2023-12-15 17:39:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:39:52,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:39:52,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:39:52,631 INFO L225 Difference]: With dead ends: 4288 [2023-12-15 17:39:52,631 INFO L226 Difference]: Without dead ends: 3703 [2023-12-15 17:39:52,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:39:52,635 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 5204 mSDsluCounter, 17089 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 21400 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:39:52,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 21400 Invalid, 3059 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 17:39:52,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3703 states. [2023-12-15 17:39:52,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3703 to 3278. [2023-12-15 17:39:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3165 states have (on average 1.7873617693522907) internal successors, (5657), 3171 states have internal predecessors, (5657), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-15 17:39:52,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5840 transitions. [2023-12-15 17:39:52,749 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5840 transitions. Word has length 141 [2023-12-15 17:39:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:39:52,749 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 5840 transitions. [2023-12-15 17:39:52,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5840 transitions. [2023-12-15 17:39:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:39:52,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:39:52,752 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:39:52,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:39:52,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:39:52,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:39:52,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2063969346, now seen corresponding path program 1 times [2023-12-15 17:39:52,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:39:52,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405210667] [2023-12-15 17:39:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:39:52,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:39:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:39:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:39:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:52,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:39:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:53,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:39:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:53,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:39:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:53,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:39:53,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:39:53,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405210667] [2023-12-15 17:39:53,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405210667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:39:53,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:39:53,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:39:53,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354860126] [2023-12-15 17:39:53,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:39:53,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:39:53,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:39:53,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:39:53,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:39:53,028 INFO L87 Difference]: Start difference. First operand 3278 states and 5840 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:54,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:39:54,548 INFO L93 Difference]: Finished difference Result 4857 states and 8484 transitions. [2023-12-15 17:39:54,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:39:54,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:39:54,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:39:54,565 INFO L225 Difference]: With dead ends: 4857 [2023-12-15 17:39:54,565 INFO L226 Difference]: Without dead ends: 3716 [2023-12-15 17:39:54,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:39:54,571 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 5000 mSDsluCounter, 12398 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5018 SdHoareTripleChecker+Valid, 16573 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:39:54,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5018 Valid, 16573 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:39:54,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2023-12-15 17:39:54,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3278. [2023-12-15 17:39:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3165 states have (on average 1.785781990521327) internal successors, (5652), 3171 states have internal predecessors, (5652), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-15 17:39:54,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5835 transitions. [2023-12-15 17:39:54,672 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5835 transitions. Word has length 141 [2023-12-15 17:39:54,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:39:54,673 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 5835 transitions. [2023-12-15 17:39:54,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:54,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5835 transitions. [2023-12-15 17:39:54,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:39:54,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:39:54,676 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:39:54,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:39:54,676 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:39:54,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:39:54,676 INFO L85 PathProgramCache]: Analyzing trace with hash 781797060, now seen corresponding path program 1 times [2023-12-15 17:39:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:39:54,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525036306] [2023-12-15 17:39:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:39:54,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:39:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:39:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:54,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:39:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:54,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:39:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:54,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:39:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:54,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:39:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:39:54,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:39:54,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525036306] [2023-12-15 17:39:54,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525036306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:39:54,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:39:54,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:39:54,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645005571] [2023-12-15 17:39:54,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:39:54,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:39:54,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:39:54,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:39:54,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:39:54,927 INFO L87 Difference]: Start difference. First operand 3278 states and 5835 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:56,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:39:56,363 INFO L93 Difference]: Finished difference Result 4853 states and 8463 transitions. [2023-12-15 17:39:56,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:39:56,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:39:56,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:39:56,379 INFO L225 Difference]: With dead ends: 4853 [2023-12-15 17:39:56,379 INFO L226 Difference]: Without dead ends: 3712 [2023-12-15 17:39:56,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:39:56,384 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4998 mSDsluCounter, 12398 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5016 SdHoareTripleChecker+Valid, 16573 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:39:56,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5016 Valid, 16573 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:39:56,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2023-12-15 17:39:56,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3278. [2023-12-15 17:39:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3165 states have (on average 1.7842022116903633) internal successors, (5647), 3171 states have internal predecessors, (5647), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-15 17:39:56,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5830 transitions. [2023-12-15 17:39:56,479 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5830 transitions. Word has length 141 [2023-12-15 17:39:56,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:39:56,480 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 5830 transitions. [2023-12-15 17:39:56,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5830 transitions. [2023-12-15 17:39:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:39:56,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:39:56,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:39:56,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:39:56,483 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:39:56,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:39:56,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1060678654, now seen corresponding path program 1 times [2023-12-15 17:39:56,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:39:56,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595211524] [2023-12-15 17:39:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:39:56,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:39:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:39:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:39:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:39:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:39:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:39:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:39:56,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:39:56,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595211524] [2023-12-15 17:39:56,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595211524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:39:56,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:39:56,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:39:56,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699793388] [2023-12-15 17:39:56,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:39:56,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:39:56,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:39:56,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:39:56,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:39:56,786 INFO L87 Difference]: Start difference. First operand 3278 states and 5830 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:39:58,191 INFO L93 Difference]: Finished difference Result 4848 states and 8440 transitions. [2023-12-15 17:39:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:39:58,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:39:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:39:58,205 INFO L225 Difference]: With dead ends: 4848 [2023-12-15 17:39:58,205 INFO L226 Difference]: Without dead ends: 3707 [2023-12-15 17:39:58,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:39:58,211 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4996 mSDsluCounter, 12398 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 16573 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:39:58,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5014 Valid, 16573 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:39:58,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-15 17:39:58,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3278. [2023-12-15 17:39:58,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3165 states have (on average 1.7826224328593996) internal successors, (5642), 3171 states have internal predecessors, (5642), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-15 17:39:58,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5825 transitions. [2023-12-15 17:39:58,304 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5825 transitions. Word has length 141 [2023-12-15 17:39:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:39:58,305 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 5825 transitions. [2023-12-15 17:39:58,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:39:58,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5825 transitions. [2023-12-15 17:39:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:39:58,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:39:58,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:39:58,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:39:58,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:39:58,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:39:58,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1512285956, now seen corresponding path program 1 times [2023-12-15 17:39:58,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:39:58,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943237066] [2023-12-15 17:39:58,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:39:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:39:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:39:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:39:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:58,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:39:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:58,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:39:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:58,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:39:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:39:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:39:58,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:39:58,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943237066] [2023-12-15 17:39:58,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943237066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:39:58,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:39:58,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:39:58,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105796650] [2023-12-15 17:39:58,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:39:58,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:39:58,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:39:58,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:39:58,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:39:58,534 INFO L87 Difference]: Start difference. First operand 3278 states and 5825 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:01,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:01,842 INFO L93 Difference]: Finished difference Result 6307 states and 10801 transitions. [2023-12-15 17:40:01,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:01,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:40:01,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:01,880 INFO L225 Difference]: With dead ends: 6307 [2023-12-15 17:40:01,880 INFO L226 Difference]: Without dead ends: 5168 [2023-12-15 17:40:01,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:40:01,890 INFO L413 NwaCegarLoop]: 4360 mSDtfsCounter, 5154 mSDsluCounter, 17153 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5171 SdHoareTripleChecker+Valid, 21513 SdHoareTripleChecker+Invalid, 3272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:01,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5171 Valid, 21513 Invalid, 3272 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 17:40:01,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5168 states. [2023-12-15 17:40:02,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5168 to 4397. [2023-12-15 17:40:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4180 states have (on average 1.7375598086124402) internal successors, (7263), 4190 states have internal predecessors, (7263), 159 states have call successors, (159), 48 states have call predecessors, (159), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2023-12-15 17:40:02,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 7624 transitions. [2023-12-15 17:40:02,043 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 7624 transitions. Word has length 141 [2023-12-15 17:40:02,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:02,043 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 7624 transitions. [2023-12-15 17:40:02,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:02,045 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 7624 transitions. [2023-12-15 17:40:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:40:02,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:02,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:02,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:40:02,048 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:02,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1179642818, now seen corresponding path program 1 times [2023-12-15 17:40:02,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:02,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151338145] [2023-12-15 17:40:02,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:02,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:02,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:02,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:40:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:40:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:02,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:40:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:02,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:40:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:02,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:02,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151338145] [2023-12-15 17:40:02,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151338145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:02,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:02,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:02,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262671517] [2023-12-15 17:40:02,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:02,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:02,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:02,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:02,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:02,254 INFO L87 Difference]: Start difference. First operand 4397 states and 7624 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:03,857 INFO L93 Difference]: Finished difference Result 7464 states and 12699 transitions. [2023-12-15 17:40:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:03,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:40:03,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:03,871 INFO L225 Difference]: With dead ends: 7464 [2023-12-15 17:40:03,872 INFO L226 Difference]: Without dead ends: 5204 [2023-12-15 17:40:03,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:03,880 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4871 mSDsluCounter, 16496 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 20671 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:03,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4889 Valid, 20671 Invalid, 1634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:40:03,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2023-12-15 17:40:04,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 4397. [2023-12-15 17:40:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4180 states have (on average 1.7354066985645933) internal successors, (7254), 4190 states have internal predecessors, (7254), 159 states have call successors, (159), 48 states have call predecessors, (159), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2023-12-15 17:40:04,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 7615 transitions. [2023-12-15 17:40:04,015 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 7615 transitions. Word has length 141 [2023-12-15 17:40:04,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:04,017 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 7615 transitions. [2023-12-15 17:40:04,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:04,017 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 7615 transitions. [2023-12-15 17:40:04,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:40:04,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:04,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:04,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:40:04,021 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:04,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:04,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1186392252, now seen corresponding path program 1 times [2023-12-15 17:40:04,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:04,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929160777] [2023-12-15 17:40:04,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:04,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:04,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:04,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:40:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:40:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:40:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:40:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:04,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:04,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929160777] [2023-12-15 17:40:04,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929160777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:04,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:04,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:04,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458007243] [2023-12-15 17:40:04,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:04,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:04,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:04,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:04,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:04,255 INFO L87 Difference]: Start difference. First operand 4397 states and 7615 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:07,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:07,278 INFO L93 Difference]: Finished difference Result 10354 states and 17366 transitions. [2023-12-15 17:40:07,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:07,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:40:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:07,301 INFO L225 Difference]: With dead ends: 10354 [2023-12-15 17:40:07,302 INFO L226 Difference]: Without dead ends: 8096 [2023-12-15 17:40:07,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:40:07,312 INFO L413 NwaCegarLoop]: 4359 mSDtfsCounter, 5186 mSDsluCounter, 17153 mSDsCounter, 0 mSdLazyCounter, 3083 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 21512 SdHoareTripleChecker+Invalid, 3147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:07,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 21512 Invalid, 3147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3083 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 17:40:07,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2023-12-15 17:40:07,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 6657. [2023-12-15 17:40:07,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6232 states have (on average 1.6882220795892169) internal successors, (10521), 6250 states have internal predecessors, (10521), 311 states have call successors, (311), 96 states have call predecessors, (311), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2023-12-15 17:40:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 11256 transitions. [2023-12-15 17:40:07,538 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 11256 transitions. Word has length 141 [2023-12-15 17:40:07,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:07,539 INFO L495 AbstractCegarLoop]: Abstraction has 6657 states and 11256 transitions. [2023-12-15 17:40:07,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 11256 transitions. [2023-12-15 17:40:07,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:40:07,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:07,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:07,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:40:07,544 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:07,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:07,544 INFO L85 PathProgramCache]: Analyzing trace with hash 540752710, now seen corresponding path program 1 times [2023-12-15 17:40:07,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:07,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602581483] [2023-12-15 17:40:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:07,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:07,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:07,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:40:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:07,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:40:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:07,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:40:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:07,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:40:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:07,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:07,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602581483] [2023-12-15 17:40:07,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602581483] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:07,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:07,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:07,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347476627] [2023-12-15 17:40:07,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:07,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:07,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:07,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:07,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:07,756 INFO L87 Difference]: Start difference. First operand 6657 states and 11256 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:10,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:10,655 INFO L93 Difference]: Finished difference Result 18478 states and 30647 transitions. [2023-12-15 17:40:10,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:10,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:40:10,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:10,707 INFO L225 Difference]: With dead ends: 18478 [2023-12-15 17:40:10,707 INFO L226 Difference]: Without dead ends: 13960 [2023-12-15 17:40:10,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:40:10,727 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 5212 mSDsluCounter, 17089 mSDsCounter, 0 mSdLazyCounter, 2822 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5229 SdHoareTripleChecker+Valid, 21399 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:10,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5229 Valid, 21399 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2822 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 17:40:10,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13960 states. [2023-12-15 17:40:11,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13960 to 11193. [2023-12-15 17:40:11,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11193 states, 10352 states have (on average 1.6498261205564142) internal successors, (17079), 10386 states have internal predecessors, (17079), 615 states have call successors, (615), 192 states have call predecessors, (615), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2023-12-15 17:40:11,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11193 states to 11193 states and 18616 transitions. [2023-12-15 17:40:11,160 INFO L78 Accepts]: Start accepts. Automaton has 11193 states and 18616 transitions. Word has length 141 [2023-12-15 17:40:11,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:11,161 INFO L495 AbstractCegarLoop]: Abstraction has 11193 states and 18616 transitions. [2023-12-15 17:40:11,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:11,161 INFO L276 IsEmpty]: Start isEmpty. Operand 11193 states and 18616 transitions. [2023-12-15 17:40:11,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:40:11,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:11,170 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:11,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:40:11,171 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:11,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:11,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1012109060, now seen corresponding path program 1 times [2023-12-15 17:40:11,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:11,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922831863] [2023-12-15 17:40:11,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:11,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:11,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:11,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:40:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:40:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:40:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:40:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:11,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:11,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922831863] [2023-12-15 17:40:11,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922831863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:11,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:11,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:11,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823474544] [2023-12-15 17:40:11,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:11,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:11,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:11,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:11,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:11,386 INFO L87 Difference]: Start difference. First operand 11193 states and 18616 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:15,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:15,008 INFO L93 Difference]: Finished difference Result 38822 states and 64027 transitions. [2023-12-15 17:40:15,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:40:15,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-15 17:40:15,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:15,134 INFO L225 Difference]: With dead ends: 38822 [2023-12-15 17:40:15,134 INFO L226 Difference]: Without dead ends: 29768 [2023-12-15 17:40:15,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:40:15,179 INFO L413 NwaCegarLoop]: 4355 mSDtfsCounter, 5552 mSDsluCounter, 17148 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5580 SdHoareTripleChecker+Valid, 21503 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:15,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5580 Valid, 21503 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 17:40:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29768 states. [2023-12-15 17:40:16,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29768 to 20233. [2023-12-15 17:40:16,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20233 states, 18592 states have (on average 1.6249462134251291) internal successors, (30211), 18658 states have internal predecessors, (30211), 1191 states have call successors, (1191), 384 states have call predecessors, (1191), 448 states have return successors, (2048), 1254 states have call predecessors, (2048), 1191 states have call successors, (2048) [2023-12-15 17:40:16,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20233 states to 20233 states and 33450 transitions. [2023-12-15 17:40:16,189 INFO L78 Accepts]: Start accepts. Automaton has 20233 states and 33450 transitions. Word has length 141 [2023-12-15 17:40:16,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:16,189 INFO L495 AbstractCegarLoop]: Abstraction has 20233 states and 33450 transitions. [2023-12-15 17:40:16,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 20233 states and 33450 transitions. [2023-12-15 17:40:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-15 17:40:16,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:16,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:16,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:40:16,202 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:16,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:16,202 INFO L85 PathProgramCache]: Analyzing trace with hash -635253882, now seen corresponding path program 1 times [2023-12-15 17:40:16,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:16,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440049341] [2023-12-15 17:40:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:16,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 17:40:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:16,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 17:40:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:16,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 17:40:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 17:40:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:16,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:16,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:16,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440049341] [2023-12-15 17:40:16,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440049341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:16,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:16,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:16,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233544457] [2023-12-15 17:40:16,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:16,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:16,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:16,397 INFO L87 Difference]: Start difference. First operand 20233 states and 33450 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-15 17:40:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:40:20,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:40:20,281 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 1767 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 3293 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 3719 SdHoareTripleChecker+Invalid, 3349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:20,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 3719 Invalid, 3349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3293 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 17:40:20,283 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:40:20,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:40:20,284 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (20233states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (63801 states constructed, input type IntersectNwa). [2023-12-15 17:40:20,285 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:40:20,288 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:20,290 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:40:20,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:40:20 BoogieIcfgContainer [2023-12-15 17:40:20,292 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:40:20,292 INFO L158 Benchmark]: Toolchain (without parser) took 49251.22ms. Allocated memory was 191.9MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 109.6MB in the beginning and 1.0GB in the end (delta: -927.6MB). Peak memory consumption was 920.0MB. Max. memory is 8.0GB. [2023-12-15 17:40:20,292 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:40:20,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2938.32ms. Allocated memory was 191.9MB in the beginning and 309.3MB in the end (delta: 117.4MB). Free memory was 109.2MB in the beginning and 149.7MB in the end (delta: -40.5MB). Peak memory consumption was 185.8MB. Max. memory is 8.0GB. [2023-12-15 17:40:20,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 429.74ms. Allocated memory was 309.3MB in the beginning and 496.0MB in the end (delta: 186.6MB). Free memory was 149.7MB in the beginning and 325.9MB in the end (delta: -176.2MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. [2023-12-15 17:40:20,293 INFO L158 Benchmark]: Boogie Preprocessor took 668.28ms. Allocated memory is still 496.0MB. Free memory was 325.9MB in the beginning and 314.4MB in the end (delta: 11.5MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-12-15 17:40:20,293 INFO L158 Benchmark]: RCFGBuilder took 7174.99ms. Allocated memory was 496.0MB in the beginning and 1.3GB in the end (delta: 791.7MB). Free memory was 314.4MB in the beginning and 1.0GB in the end (delta: -689.4MB). Peak memory consumption was 274.7MB. Max. memory is 8.0GB. [2023-12-15 17:40:20,294 INFO L158 Benchmark]: TraceAbstraction took 38033.27ms. Allocated memory was 1.3GB in the beginning and 2.0GB in the end (delta: 751.8MB). Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: -33.9MB). Peak memory consumption was 716.9MB. Max. memory is 8.0GB. [2023-12-15 17:40:20,294 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 17:40:20,298 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 191.9MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2938.32ms. Allocated memory was 191.9MB in the beginning and 309.3MB in the end (delta: 117.4MB). Free memory was 109.2MB in the beginning and 149.7MB in the end (delta: -40.5MB). Peak memory consumption was 185.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 429.74ms. Allocated memory was 309.3MB in the beginning and 496.0MB in the end (delta: 186.6MB). Free memory was 149.7MB in the beginning and 325.9MB in the end (delta: -176.2MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 668.28ms. Allocated memory is still 496.0MB. Free memory was 325.9MB in the beginning and 314.4MB in the end (delta: 11.5MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * RCFGBuilder took 7174.99ms. Allocated memory was 496.0MB in the beginning and 1.3GB in the end (delta: 791.7MB). Free memory was 314.4MB in the beginning and 1.0GB in the end (delta: -689.4MB). Peak memory consumption was 274.7MB. Max. memory is 8.0GB. * TraceAbstraction took 38033.27ms. Allocated memory was 1.3GB in the beginning and 2.0GB in the end (delta: 751.8MB). Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: -33.9MB). Peak memory consumption was 716.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (20233states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (63801 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11133]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11133). Cancelled while NwaCegarLoop was constructing difference of abstraction (20233states) and FLOYD_HOARE automaton (currently 15 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (63801 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2425 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 38.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 31.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54160 SdHoareTripleChecker+Valid, 21.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53940 mSDsluCounter, 219331 SdHoareTripleChecker+Invalid, 18.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 171566 mSDsCounter, 821 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28601 IncrementalHoareTripleChecker+Invalid, 29422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 821 mSolverCounterUnsat, 47765 mSDtfsCounter, 28601 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20233occurred in iteration=11, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 17392 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1692 NumberOfCodeBlocks, 1692 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1680 ConstructedInterpolants, 0 QuantifiedInterpolants, 4963 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown