/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal49.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:12:38,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:12:38,392 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 19:12:38,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:12:38,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:12:38,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:12:38,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:12:38,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:12:38,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:12:38,411 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:12:38,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:12:38,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:12:38,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:12:38,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:12:38,412 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:12:38,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:12:38,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:12:38,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:12:38,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:12:38,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:12:38,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:12:38,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:12:38,416 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:12:38,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:12:38,419 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:12:38,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:12:38,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:12:38,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:12:38,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:12:38,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:12:38,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:12:38,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:12:38,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:12:38,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:12:38,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:12:38,421 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:12:38,421 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:12:38,421 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:12:38,421 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:12:38,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:12:38,422 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:12:38,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:12:38,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:12:38,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:12:38,623 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:12:38,624 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:12:38,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal49.c [2023-12-16 19:12:39,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:12:40,032 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:12:40,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal49.c [2023-12-16 19:12:40,074 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd312727b/c0125864e2674a1fb65f8612f1d08ed0/FLAG2f1f6e01e [2023-12-16 19:12:40,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd312727b/c0125864e2674a1fb65f8612f1d08ed0 [2023-12-16 19:12:40,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:12:40,090 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:12:40,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:12:40,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:12:40,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:12:40,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:12:40" (1/1) ... [2023-12-16 19:12:40,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e54faed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:40, skipping insertion in model container [2023-12-16 19:12:40,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:12:40" (1/1) ... [2023-12-16 19:12:40,219 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:12:40,464 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal49.c[1245,1258] [2023-12-16 19:12:41,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:12:41,295 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:12:41,303 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal49.c[1245,1258] [2023-12-16 19:12:41,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:12:41,860 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:12:41,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41 WrapperNode [2023-12-16 19:12:41,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:12:41,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:12:41,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:12:41,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:12:41,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:42,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:44,797 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41963 [2023-12-16 19:12:44,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:12:44,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:12:44,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:12:44,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:12:44,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:44,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:45,643 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:46,036 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-12-16 19:12:46,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:46,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:46,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:47,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:47,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:47,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:47,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:12:47,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:12:47,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:12:47,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:12:47,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (1/1) ... [2023-12-16 19:12:47,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:12:47,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:12:47,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 19:12:47,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 19:12:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:12:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:12:47,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 19:12:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:12:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:12:49,075 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:12:49,076 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:13:03,376 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:13:03,795 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:13:03,796 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:13:03,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:13:03 BoogieIcfgContainer [2023-12-16 19:13:03,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:13:03,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:13:03,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:13:03,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:13:03,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:12:40" (1/3) ... [2023-12-16 19:13:03,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f3077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:13:03, skipping insertion in model container [2023-12-16 19:13:03,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:12:41" (2/3) ... [2023-12-16 19:13:03,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624f3077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:13:03, skipping insertion in model container [2023-12-16 19:13:03,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:13:03" (3/3) ... [2023-12-16 19:13:03,804 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal49.c [2023-12-16 19:13:03,816 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:13:03,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:13:03,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:13:03,941 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;@6162a7f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:13:03,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:13:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 9347 states, 9345 states have (on average 1.6670947030497592) internal successors, (15579), 9346 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:03,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 19:13:03,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:03,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:03,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:03,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:03,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1016476938, now seen corresponding path program 1 times [2023-12-16 19:13:03,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:03,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947015754] [2023-12-16 19:13:03,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:03,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:05,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:05,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947015754] [2023-12-16 19:13:05,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947015754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:05,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:05,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:05,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088086435] [2023-12-16 19:13:05,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:05,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:05,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:05,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:05,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:05,128 INFO L87 Difference]: Start difference. First operand has 9347 states, 9345 states have (on average 1.6670947030497592) internal successors, (15579), 9346 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:05,519 INFO L93 Difference]: Finished difference Result 18582 states and 30974 transitions. [2023-12-16 19:13:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:05,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2023-12-16 19:13:05,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:05,564 INFO L225 Difference]: With dead ends: 18582 [2023-12-16 19:13:05,564 INFO L226 Difference]: Without dead ends: 9347 [2023-12-16 19:13:05,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:05,585 INFO L413 NwaCegarLoop]: 15572 mSDtfsCounter, 1 mSDsluCounter, 31139 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46711 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:05,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46711 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:13:05,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9347 states. [2023-12-16 19:13:05,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9347 to 9347. [2023-12-16 19:13:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9347 states, 9346 states have (on average 1.6667023325486838) internal successors, (15577), 9346 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9347 states to 9347 states and 15577 transitions. [2023-12-16 19:13:05,817 INFO L78 Accepts]: Start accepts. Automaton has 9347 states and 15577 transitions. Word has length 174 [2023-12-16 19:13:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:05,820 INFO L495 AbstractCegarLoop]: Abstraction has 9347 states and 15577 transitions. [2023-12-16 19:13:05,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 9347 states and 15577 transitions. [2023-12-16 19:13:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-16 19:13:05,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:05,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:05,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:13:05,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:05,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:05,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1444288038, now seen corresponding path program 1 times [2023-12-16 19:13:05,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:05,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402756969] [2023-12-16 19:13:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:05,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:06,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:06,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402756969] [2023-12-16 19:13:06,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402756969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:06,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:06,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:06,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716194847] [2023-12-16 19:13:06,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:06,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:06,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:06,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:06,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:06,317 INFO L87 Difference]: Start difference. First operand 9347 states and 15577 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:06,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:06,846 INFO L93 Difference]: Finished difference Result 18585 states and 30972 transitions. [2023-12-16 19:13:06,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:06,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2023-12-16 19:13:06,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:06,877 INFO L225 Difference]: With dead ends: 18585 [2023-12-16 19:13:06,877 INFO L226 Difference]: Without dead ends: 9350 [2023-12-16 19:13:06,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:06,886 INFO L413 NwaCegarLoop]: 15572 mSDtfsCounter, 1 mSDsluCounter, 31137 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46709 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46709 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:13:06,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2023-12-16 19:13:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 9349. [2023-12-16 19:13:07,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9349 states, 9348 states have (on average 1.6665596919127086) internal successors, (15579), 9348 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9349 states to 9349 states and 15579 transitions. [2023-12-16 19:13:07,042 INFO L78 Accepts]: Start accepts. Automaton has 9349 states and 15579 transitions. Word has length 175 [2023-12-16 19:13:07,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:07,043 INFO L495 AbstractCegarLoop]: Abstraction has 9349 states and 15579 transitions. [2023-12-16 19:13:07,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:07,044 INFO L276 IsEmpty]: Start isEmpty. Operand 9349 states and 15579 transitions. [2023-12-16 19:13:07,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-16 19:13:07,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:07,047 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:07,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:13:07,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:07,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2033687664, now seen corresponding path program 1 times [2023-12-16 19:13:07,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:07,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309930021] [2023-12-16 19:13:07,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:07,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:07,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:07,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309930021] [2023-12-16 19:13:07,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309930021] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:07,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:07,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:07,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102924484] [2023-12-16 19:13:07,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:07,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:07,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:07,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:07,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:07,703 INFO L87 Difference]: Start difference. First operand 9349 states and 15579 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:08,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:08,774 INFO L93 Difference]: Finished difference Result 27700 states and 46123 transitions. [2023-12-16 19:13:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:13:08,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2023-12-16 19:13:08,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:08,806 INFO L225 Difference]: With dead ends: 27700 [2023-12-16 19:13:08,807 INFO L226 Difference]: Without dead ends: 9349 [2023-12-16 19:13:08,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:08,824 INFO L413 NwaCegarLoop]: 15604 mSDtfsCounter, 15015 mSDsluCounter, 30659 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15015 SdHoareTripleChecker+Valid, 46263 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:08,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15015 Valid, 46263 Invalid, 878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [118 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 19:13:08,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9349 states. [2023-12-16 19:13:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9349 to 9349. [2023-12-16 19:13:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9349 states, 9348 states have (on average 1.6664527171587504) internal successors, (15578), 9348 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:08,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9349 states to 9349 states and 15578 transitions. [2023-12-16 19:13:08,978 INFO L78 Accepts]: Start accepts. Automaton has 9349 states and 15578 transitions. Word has length 176 [2023-12-16 19:13:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:08,978 INFO L495 AbstractCegarLoop]: Abstraction has 9349 states and 15578 transitions. [2023-12-16 19:13:08,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:08,979 INFO L276 IsEmpty]: Start isEmpty. Operand 9349 states and 15578 transitions. [2023-12-16 19:13:08,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-16 19:13:08,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:08,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:08,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:13:08,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:08,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash -152312886, now seen corresponding path program 1 times [2023-12-16 19:13:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:08,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327562307] [2023-12-16 19:13:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:09,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:09,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327562307] [2023-12-16 19:13:09,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327562307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:09,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:09,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:09,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68329807] [2023-12-16 19:13:09,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:09,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:09,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:09,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:09,659 INFO L87 Difference]: Start difference. First operand 9349 states and 15578 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:09,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:09,859 INFO L93 Difference]: Finished difference Result 18641 states and 31061 transitions. [2023-12-16 19:13:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:09,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2023-12-16 19:13:09,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:09,873 INFO L225 Difference]: With dead ends: 18641 [2023-12-16 19:13:09,873 INFO L226 Difference]: Without dead ends: 9404 [2023-12-16 19:13:09,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:09,888 INFO L413 NwaCegarLoop]: 15657 mSDtfsCounter, 30771 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30771 SdHoareTripleChecker+Valid, 16202 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:09,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30771 Valid, 16202 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:13:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9404 states. [2023-12-16 19:13:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9404 to 9349. [2023-12-16 19:13:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9349 states, 9348 states have (on average 1.6663457424047925) internal successors, (15577), 9348 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:10,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9349 states to 9349 states and 15577 transitions. [2023-12-16 19:13:10,037 INFO L78 Accepts]: Start accepts. Automaton has 9349 states and 15577 transitions. Word has length 177 [2023-12-16 19:13:10,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:10,037 INFO L495 AbstractCegarLoop]: Abstraction has 9349 states and 15577 transitions. [2023-12-16 19:13:10,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 4 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:10,037 INFO L276 IsEmpty]: Start isEmpty. Operand 9349 states and 15577 transitions. [2023-12-16 19:13:10,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-16 19:13:10,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:10,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:10,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 19:13:10,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:10,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:10,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1499191848, now seen corresponding path program 1 times [2023-12-16 19:13:10,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:10,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009090829] [2023-12-16 19:13:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:10,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:10,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:10,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009090829] [2023-12-16 19:13:10,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009090829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:10,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:10,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:10,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305098078] [2023-12-16 19:13:10,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:10,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:10,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:10,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:10,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:10,522 INFO L87 Difference]: Start difference. First operand 9349 states and 15577 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:11,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:11,207 INFO L93 Difference]: Finished difference Result 18644 states and 31061 transitions. [2023-12-16 19:13:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:13:11,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2023-12-16 19:13:11,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:11,223 INFO L225 Difference]: With dead ends: 18644 [2023-12-16 19:13:11,223 INFO L226 Difference]: Without dead ends: 9349 [2023-12-16 19:13:11,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:11,234 INFO L413 NwaCegarLoop]: 15564 mSDtfsCounter, 50 mSDsluCounter, 30619 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 46183 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:11,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 46183 Invalid, 534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 19:13:11,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9349 states. [2023-12-16 19:13:11,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9349 to 9349. [2023-12-16 19:13:11,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9349 states, 9348 states have (on average 1.6662387676508343) internal successors, (15576), 9348 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9349 states to 9349 states and 15576 transitions. [2023-12-16 19:13:11,373 INFO L78 Accepts]: Start accepts. Automaton has 9349 states and 15576 transitions. Word has length 178 [2023-12-16 19:13:11,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:11,374 INFO L495 AbstractCegarLoop]: Abstraction has 9349 states and 15576 transitions. [2023-12-16 19:13:11,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 9349 states and 15576 transitions. [2023-12-16 19:13:11,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 19:13:11,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:11,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:11,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 19:13:11,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:11,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:11,376 INFO L85 PathProgramCache]: Analyzing trace with hash 19546032, now seen corresponding path program 1 times [2023-12-16 19:13:11,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:11,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139920952] [2023-12-16 19:13:11,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:11,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:11,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:11,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:11,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139920952] [2023-12-16 19:13:11,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139920952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:11,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:11,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:13:11,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433240629] [2023-12-16 19:13:11,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:11,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:13:11,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:11,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:13:11,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:11,991 INFO L87 Difference]: Start difference. First operand 9349 states and 15576 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:13,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:13,607 INFO L93 Difference]: Finished difference Result 27825 states and 46358 transitions. [2023-12-16 19:13:13,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:13:13,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2023-12-16 19:13:13,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:13,633 INFO L225 Difference]: With dead ends: 27825 [2023-12-16 19:13:13,633 INFO L226 Difference]: Without dead ends: 18588 [2023-12-16 19:13:13,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:13:13,646 INFO L413 NwaCegarLoop]: 15108 mSDtfsCounter, 30952 mSDsluCounter, 30161 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30952 SdHoareTripleChecker+Valid, 45269 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:13,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30952 Valid, 45269 Invalid, 1627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 19:13:13,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18588 states. [2023-12-16 19:13:13,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18588 to 9352. [2023-12-16 19:13:13,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9352 states, 9351 states have (on average 1.6660250240615977) internal successors, (15579), 9351 states have internal predecessors, (15579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:13,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9352 states to 9352 states and 15579 transitions. [2023-12-16 19:13:13,813 INFO L78 Accepts]: Start accepts. Automaton has 9352 states and 15579 transitions. Word has length 179 [2023-12-16 19:13:13,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:13,816 INFO L495 AbstractCegarLoop]: Abstraction has 9352 states and 15579 transitions. [2023-12-16 19:13:13,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:13,816 INFO L276 IsEmpty]: Start isEmpty. Operand 9352 states and 15579 transitions. [2023-12-16 19:13:13,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 19:13:13,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:13,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:13,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 19:13:13,818 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:13,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:13,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1666633806, now seen corresponding path program 1 times [2023-12-16 19:13:13,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:13,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997313100] [2023-12-16 19:13:13,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:13,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:14,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:14,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997313100] [2023-12-16 19:13:14,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997313100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:14,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:14,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:13:14,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248878987] [2023-12-16 19:13:14,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:14,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:13:14,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:14,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:13:14,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:13:14,624 INFO L87 Difference]: Start difference. First operand 9352 states and 15579 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:15,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:15,048 INFO L93 Difference]: Finished difference Result 27936 states and 46529 transitions. [2023-12-16 19:13:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:13:15,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2023-12-16 19:13:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:15,072 INFO L225 Difference]: With dead ends: 27936 [2023-12-16 19:13:15,072 INFO L226 Difference]: Without dead ends: 18696 [2023-12-16 19:13:15,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-16 19:13:15,085 INFO L413 NwaCegarLoop]: 15712 mSDtfsCounter, 61576 mSDsluCounter, 46886 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61576 SdHoareTripleChecker+Valid, 62598 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:15,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61576 Valid, 62598 Invalid, 96 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:13:15,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18696 states. [2023-12-16 19:13:15,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18696 to 9405. [2023-12-16 19:13:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9405 states, 9404 states have (on average 1.6654615057422373) internal successors, (15662), 9404 states have internal predecessors, (15662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9405 states to 9405 states and 15662 transitions. [2023-12-16 19:13:15,250 INFO L78 Accepts]: Start accepts. Automaton has 9405 states and 15662 transitions. Word has length 179 [2023-12-16 19:13:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:15,250 INFO L495 AbstractCegarLoop]: Abstraction has 9405 states and 15662 transitions. [2023-12-16 19:13:15,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 9405 states and 15662 transitions. [2023-12-16 19:13:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 19:13:15,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:15,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:15,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 19:13:15,252 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:15,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:15,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2026274198, now seen corresponding path program 1 times [2023-12-16 19:13:15,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:15,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693359881] [2023-12-16 19:13:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:15,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:15,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693359881] [2023-12-16 19:13:15,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693359881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:15,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:15,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:15,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239801054] [2023-12-16 19:13:15,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:15,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:15,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:15,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:15,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:15,715 INFO L87 Difference]: Start difference. First operand 9405 states and 15662 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:16,583 INFO L93 Difference]: Finished difference Result 18698 states and 31138 transitions. [2023-12-16 19:13:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:16,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2023-12-16 19:13:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:16,597 INFO L225 Difference]: With dead ends: 18698 [2023-12-16 19:13:16,597 INFO L226 Difference]: Without dead ends: 9405 [2023-12-16 19:13:16,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:16,607 INFO L413 NwaCegarLoop]: 15057 mSDtfsCounter, 15554 mSDsluCounter, 15055 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15554 SdHoareTripleChecker+Valid, 30112 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:16,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15554 Valid, 30112 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 19:13:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9405 states. [2023-12-16 19:13:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9405 to 9405. [2023-12-16 19:13:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9405 states, 9404 states have (on average 1.665248830284985) internal successors, (15660), 9404 states have internal predecessors, (15660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9405 states to 9405 states and 15660 transitions. [2023-12-16 19:13:16,719 INFO L78 Accepts]: Start accepts. Automaton has 9405 states and 15660 transitions. Word has length 180 [2023-12-16 19:13:16,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:16,720 INFO L495 AbstractCegarLoop]: Abstraction has 9405 states and 15660 transitions. [2023-12-16 19:13:16,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9405 states and 15660 transitions. [2023-12-16 19:13:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 19:13:16,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:16,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:16,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 19:13:16,721 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:16,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:16,721 INFO L85 PathProgramCache]: Analyzing trace with hash -771763258, now seen corresponding path program 1 times [2023-12-16 19:13:16,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:16,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323418466] [2023-12-16 19:13:16,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:16,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:17,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:17,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:17,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323418466] [2023-12-16 19:13:17,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323418466] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:17,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:17,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:13:17,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363879981] [2023-12-16 19:13:17,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:17,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:13:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:17,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:13:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:13:17,430 INFO L87 Difference]: Start difference. First operand 9405 states and 15660 transitions. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:18,429 INFO L93 Difference]: Finished difference Result 28183 states and 46915 transitions. [2023-12-16 19:13:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:13:18,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2023-12-16 19:13:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:18,453 INFO L225 Difference]: With dead ends: 28183 [2023-12-16 19:13:18,454 INFO L226 Difference]: Without dead ends: 18890 [2023-12-16 19:13:18,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:13:18,466 INFO L413 NwaCegarLoop]: 15726 mSDtfsCounter, 77158 mSDsluCounter, 46519 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77158 SdHoareTripleChecker+Valid, 62245 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:18,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77158 Valid, 62245 Invalid, 260 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 19:13:18,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18890 states. [2023-12-16 19:13:18,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18890 to 9598. [2023-12-16 19:13:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 9597 states have (on average 1.6638532874856726) internal successors, (15968), 9597 states have internal predecessors, (15968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 15968 transitions. [2023-12-16 19:13:18,637 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 15968 transitions. Word has length 181 [2023-12-16 19:13:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:18,638 INFO L495 AbstractCegarLoop]: Abstraction has 9598 states and 15968 transitions. [2023-12-16 19:13:18,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 15968 transitions. [2023-12-16 19:13:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 19:13:18,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:18,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:18,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 19:13:18,639 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:18,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:18,639 INFO L85 PathProgramCache]: Analyzing trace with hash -849916726, now seen corresponding path program 1 times [2023-12-16 19:13:18,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:18,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366741652] [2023-12-16 19:13:18,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:18,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:19,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366741652] [2023-12-16 19:13:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366741652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:19,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:19,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 19:13:19,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334173866] [2023-12-16 19:13:19,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:19,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:19,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:19,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:19,138 INFO L87 Difference]: Start difference. First operand 9598 states and 15968 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:19,954 INFO L93 Difference]: Finished difference Result 18911 states and 31474 transitions. [2023-12-16 19:13:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:19,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2023-12-16 19:13:19,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:19,966 INFO L225 Difference]: With dead ends: 18911 [2023-12-16 19:13:19,966 INFO L226 Difference]: Without dead ends: 9598 [2023-12-16 19:13:19,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:19,976 INFO L413 NwaCegarLoop]: 15057 mSDtfsCounter, 15413 mSDsluCounter, 15055 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15413 SdHoareTripleChecker+Valid, 30112 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:19,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15413 Valid, 30112 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 19:13:19,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9598 states. [2023-12-16 19:13:20,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9598 to 9598. [2023-12-16 19:13:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 9597 states have (on average 1.6636448890278213) internal successors, (15966), 9597 states have internal predecessors, (15966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:20,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 15966 transitions. [2023-12-16 19:13:20,096 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 15966 transitions. Word has length 182 [2023-12-16 19:13:20,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:20,096 INFO L495 AbstractCegarLoop]: Abstraction has 9598 states and 15966 transitions. [2023-12-16 19:13:20,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:20,097 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 15966 transitions. [2023-12-16 19:13:20,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 19:13:20,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:20,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:20,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 19:13:20,098 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:20,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:20,098 INFO L85 PathProgramCache]: Analyzing trace with hash -709368116, now seen corresponding path program 1 times [2023-12-16 19:13:20,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:20,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192948044] [2023-12-16 19:13:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:20,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:20,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:20,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192948044] [2023-12-16 19:13:20,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192948044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:20,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:20,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 19:13:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416652369] [2023-12-16 19:13:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:20,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:20,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:20,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:20,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:20,522 INFO L87 Difference]: Start difference. First operand 9598 states and 15966 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:21,307 INFO L93 Difference]: Finished difference Result 19009 states and 31633 transitions. [2023-12-16 19:13:21,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:21,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2023-12-16 19:13:21,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:21,318 INFO L225 Difference]: With dead ends: 19009 [2023-12-16 19:13:21,318 INFO L226 Difference]: Without dead ends: 9586 [2023-12-16 19:13:21,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:21,328 INFO L413 NwaCegarLoop]: 15057 mSDtfsCounter, 15458 mSDsluCounter, 15055 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15458 SdHoareTripleChecker+Valid, 30112 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:21,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15458 Valid, 30112 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 19:13:21,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9586 states. [2023-12-16 19:13:21,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9586 to 9586. [2023-12-16 19:13:21,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9586 states, 9585 states have (on average 1.6640584246218049) internal successors, (15950), 9585 states have internal predecessors, (15950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9586 states to 9586 states and 15950 transitions. [2023-12-16 19:13:21,448 INFO L78 Accepts]: Start accepts. Automaton has 9586 states and 15950 transitions. Word has length 182 [2023-12-16 19:13:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:21,448 INFO L495 AbstractCegarLoop]: Abstraction has 9586 states and 15950 transitions. [2023-12-16 19:13:21,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9586 states and 15950 transitions. [2023-12-16 19:13:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 19:13:21,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:21,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:21,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 19:13:21,450 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:21,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:21,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1664308368, now seen corresponding path program 1 times [2023-12-16 19:13:21,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:21,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513244795] [2023-12-16 19:13:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:21,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513244795] [2023-12-16 19:13:22,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513244795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:22,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:22,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 19:13:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561145129] [2023-12-16 19:13:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:22,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:13:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:22,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:13:22,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:13:22,108 INFO L87 Difference]: Start difference. First operand 9586 states and 15950 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:23,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:23,738 INFO L93 Difference]: Finished difference Result 37439 states and 62333 transitions. [2023-12-16 19:13:23,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 19:13:23,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2023-12-16 19:13:23,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:23,787 INFO L225 Difference]: With dead ends: 37439 [2023-12-16 19:13:23,787 INFO L226 Difference]: Without dead ends: 28152 [2023-12-16 19:13:23,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-12-16 19:13:23,805 INFO L413 NwaCegarLoop]: 15724 mSDtfsCounter, 153646 mSDsluCounter, 77950 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153646 SdHoareTripleChecker+Valid, 93674 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:23,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153646 Valid, 93674 Invalid, 407 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 19:13:23,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28152 states. [2023-12-16 19:13:24,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28152 to 9589. [2023-12-16 19:13:24,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9589 states, 9588 states have (on average 1.6639549436795995) internal successors, (15954), 9588 states have internal predecessors, (15954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9589 states to 9589 states and 15954 transitions. [2023-12-16 19:13:24,059 INFO L78 Accepts]: Start accepts. Automaton has 9589 states and 15954 transitions. Word has length 182 [2023-12-16 19:13:24,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:24,059 INFO L495 AbstractCegarLoop]: Abstraction has 9589 states and 15954 transitions. [2023-12-16 19:13:24,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 7 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:24,060 INFO L276 IsEmpty]: Start isEmpty. Operand 9589 states and 15954 transitions. [2023-12-16 19:13:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 19:13:24,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:24,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:24,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 19:13:24,061 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:24,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1271281358, now seen corresponding path program 1 times [2023-12-16 19:13:24,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:24,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690703408] [2023-12-16 19:13:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:24,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:24,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:24,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690703408] [2023-12-16 19:13:24,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690703408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:24,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:24,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:24,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159352293] [2023-12-16 19:13:24,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:24,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:24,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:24,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:24,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:24,671 INFO L87 Difference]: Start difference. First operand 9589 states and 15954 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:24,868 INFO L93 Difference]: Finished difference Result 18905 states and 31463 transitions. [2023-12-16 19:13:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:13:24,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2023-12-16 19:13:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:24,878 INFO L225 Difference]: With dead ends: 18905 [2023-12-16 19:13:24,879 INFO L226 Difference]: Without dead ends: 9589 [2023-12-16 19:13:24,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:24,888 INFO L413 NwaCegarLoop]: 15739 mSDtfsCounter, 30761 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30761 SdHoareTripleChecker+Valid, 16456 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:24,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30761 Valid, 16456 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:13:24,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9589 states. [2023-12-16 19:13:24,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9589 to 9589. [2023-12-16 19:13:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9589 states, 9588 states have (on average 1.6637463496036713) internal successors, (15952), 9588 states have internal predecessors, (15952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9589 states to 9589 states and 15952 transitions. [2023-12-16 19:13:25,022 INFO L78 Accepts]: Start accepts. Automaton has 9589 states and 15952 transitions. Word has length 182 [2023-12-16 19:13:25,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:25,022 INFO L495 AbstractCegarLoop]: Abstraction has 9589 states and 15952 transitions. [2023-12-16 19:13:25,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:25,022 INFO L276 IsEmpty]: Start isEmpty. Operand 9589 states and 15952 transitions. [2023-12-16 19:13:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 19:13:25,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:25,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:25,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 19:13:25,024 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:25,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:25,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1052076798, now seen corresponding path program 1 times [2023-12-16 19:13:25,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:25,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945472405] [2023-12-16 19:13:25,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:25,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:13:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:13:25,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:13:25,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945472405] [2023-12-16 19:13:25,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945472405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:13:25,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:13:25,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:13:25,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331402982] [2023-12-16 19:13:25,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:13:25,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:13:25,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:13:25,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:13:25,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:13:25,421 INFO L87 Difference]: Start difference. First operand 9589 states and 15952 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:25,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:13:25,688 INFO L93 Difference]: Finished difference Result 28226 states and 46974 transitions. [2023-12-16 19:13:25,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 19:13:25,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2023-12-16 19:13:25,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:13:25,711 INFO L225 Difference]: With dead ends: 28226 [2023-12-16 19:13:25,711 INFO L226 Difference]: Without dead ends: 18910 [2023-12-16 19:13:25,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:13:25,725 INFO L413 NwaCegarLoop]: 15740 mSDtfsCounter, 15379 mSDsluCounter, 31297 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15379 SdHoareTripleChecker+Valid, 47037 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:13:25,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15379 Valid, 47037 Invalid, 20 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:13:25,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18910 states. [2023-12-16 19:13:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18910 to 9595. [2023-12-16 19:13:25,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9595 states, 9594 states have (on average 1.6633312486971024) internal successors, (15958), 9594 states have internal predecessors, (15958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:25,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9595 states to 9595 states and 15958 transitions. [2023-12-16 19:13:25,914 INFO L78 Accepts]: Start accepts. Automaton has 9595 states and 15958 transitions. Word has length 183 [2023-12-16 19:13:25,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:13:25,914 INFO L495 AbstractCegarLoop]: Abstraction has 9595 states and 15958 transitions. [2023-12-16 19:13:25,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:13:25,914 INFO L276 IsEmpty]: Start isEmpty. Operand 9595 states and 15958 transitions. [2023-12-16 19:13:25,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 19:13:25,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:13:25,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:13:25,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 19:13:25,916 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:13:25,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:13:25,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1074709052, now seen corresponding path program 1 times [2023-12-16 19:13:25,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:13:25,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909639153] [2023-12-16 19:13:25,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:13:25,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:13:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 19:13:26,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 19:13:26,139 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Termination requested (timeout or resource limit) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.colorLiterals(Interpolator.java:798) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:236) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:869) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:793) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-16 19:13:26,142 INFO L158 Benchmark]: Toolchain (without parser) took 46052.20ms. Allocated memory was 260.0MB in the beginning and 5.7GB in the end (delta: 5.4GB). Free memory was 188.1MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-16 19:13:26,142 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:13:26,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1769.16ms. Allocated memory was 260.0MB in the beginning and 520.1MB in the end (delta: 260.0MB). Free memory was 188.1MB in the beginning and 284.5MB in the end (delta: -96.4MB). Peak memory consumption was 213.0MB. Max. memory is 8.0GB. [2023-12-16 19:13:26,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 2934.36ms. Allocated memory was 520.1MB in the beginning and 2.5GB in the end (delta: 2.0GB). Free memory was 284.5MB in the beginning and 1.8GB in the end (delta: -1.5GB). Peak memory consumption was 500.7MB. Max. memory is 8.0GB. [2023-12-16 19:13:26,142 INFO L158 Benchmark]: Boogie Preprocessor took 2931.43ms. Allocated memory was 2.5GB in the beginning and 4.7GB in the end (delta: 2.2GB). Free memory was 1.8GB in the beginning and 3.8GB in the end (delta: -2.0GB). Peak memory consumption was 345.0MB. Max. memory is 8.0GB. [2023-12-16 19:13:26,143 INFO L158 Benchmark]: RCFGBuilder took 16064.35ms. Allocated memory was 4.7GB in the beginning and 5.7GB in the end (delta: 999.3MB). Free memory was 3.8GB in the beginning and 4.4GB in the end (delta: -655.7MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 19:13:26,143 INFO L158 Benchmark]: TraceAbstraction took 22342.56ms. Allocated memory is still 5.7GB. Free memory was 4.4GB in the beginning and 4.5GB in the end (delta: -105.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:13:26,144 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1769.16ms. Allocated memory was 260.0MB in the beginning and 520.1MB in the end (delta: 260.0MB). Free memory was 188.1MB in the beginning and 284.5MB in the end (delta: -96.4MB). Peak memory consumption was 213.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 2934.36ms. Allocated memory was 520.1MB in the beginning and 2.5GB in the end (delta: 2.0GB). Free memory was 284.5MB in the beginning and 1.8GB in the end (delta: -1.5GB). Peak memory consumption was 500.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 2931.43ms. Allocated memory was 2.5GB in the beginning and 4.7GB in the end (delta: 2.2GB). Free memory was 1.8GB in the beginning and 3.8GB in the end (delta: -2.0GB). Peak memory consumption was 345.0MB. Max. memory is 8.0GB. * RCFGBuilder took 16064.35ms. Allocated memory was 4.7GB in the beginning and 5.7GB in the end (delta: 999.3MB). Free memory was 3.8GB in the beginning and 4.4GB in the end (delta: -655.7MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * TraceAbstraction took 22342.56ms. Allocated memory is still 5.7GB. Free memory was 4.4GB in the beginning and 4.5GB in the end (delta: -105.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Termination requested (timeout or resource limit) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Termination requested (timeout or resource limit): de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.colorLiterals(Interpolator.java:798) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown