/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 18:01:02,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 18:01:02,258 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 18:01:02,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 18:01:02,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 18:01:02,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 18:01:02,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 18:01:02,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 18:01:02,285 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 18:01:02,288 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 18:01:02,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 18:01:02,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 18:01:02,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 18:01:02,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 18:01:02,290 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 18:01:02,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 18:01:02,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 18:01:02,290 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 18:01:02,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 18:01:02,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 18:01:02,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 18:01:02,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 18:01:02,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 18:01:02,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 18:01:02,292 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 18:01:02,292 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 18:01:02,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 18:01:02,292 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 18:01:02,293 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 18:01:02,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 18:01:02,294 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 18:01:02,294 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 18:01:02,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:01:02,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 18:01:02,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 18:01:02,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 18:01:02,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 18:01:02,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 18:01:02,295 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 18:01:02,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 18:01:02,295 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 18:01:02,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 18:01:02,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 18:01:02,295 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 18:01:02,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 18:01:02,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 18:01:02,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 18:01:02,517 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 18:01:02,518 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 18:01:02,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label01.c [2023-12-15 18:01:03,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 18:01:03,861 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 18:01:03,862 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label01.c [2023-12-15 18:01:03,896 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240253b08/700d0061c9064ec286ea9eaa7553bef6/FLAG25127f900 [2023-12-15 18:01:03,909 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240253b08/700d0061c9064ec286ea9eaa7553bef6 [2023-12-15 18:01:03,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 18:01:03,912 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 18:01:03,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 18:01:03,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 18:01:03,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 18:01:03,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:01:03" (1/1) ... [2023-12-15 18:01:03,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7894e70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:03, skipping insertion in model container [2023-12-15 18:01:03,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:01:03" (1/1) ... [2023-12-15 18:01:04,013 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 18:01:04,327 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label01.c[26897,26910] [2023-12-15 18:01:04,364 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label01.c[32452,32465] [2023-12-15 18:01:04,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:01:04,888 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 18:01:04,923 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label01.c[26897,26910] [2023-12-15 18:01:04,931 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label01.c[32452,32465] [2023-12-15 18:01:05,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:01:05,244 INFO L206 MainTranslator]: Completed translation [2023-12-15 18:01:05,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05 WrapperNode [2023-12-15 18:01:05,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 18:01:05,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 18:01:05,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 18:01:05,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 18:01:05,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,542 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5286 [2023-12-15 18:01:05,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 18:01:05,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 18:01:05,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 18:01:05,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 18:01:05,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,709 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 18:01:05,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 18:01:05,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 18:01:05,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 18:01:05,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 18:01:05,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (1/1) ... [2023-12-15 18:01:05,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:01:05,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:01:05,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 18:01:05,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 18:01:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 18:01:05,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 18:01:05,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 18:01:05,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 18:01:06,107 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 18:01:06,108 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 18:01:09,106 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 18:01:09,147 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 18:01:09,148 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 18:01:09,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:01:09 BoogieIcfgContainer [2023-12-15 18:01:09,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 18:01:09,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 18:01:09,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 18:01:09,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 18:01:09,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 06:01:03" (1/3) ... [2023-12-15 18:01:09,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5cc81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:01:09, skipping insertion in model container [2023-12-15 18:01:09,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:01:05" (2/3) ... [2023-12-15 18:01:09,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5cc81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:01:09, skipping insertion in model container [2023-12-15 18:01:09,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:01:09" (3/3) ... [2023-12-15 18:01:09,156 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals+Problem12_label01.c [2023-12-15 18:01:09,168 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 18:01:09,168 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 18:01:09,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 18:01:09,224 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;@6f817106, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 18:01:09,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 18:01:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 882 states, 879 states have (on average 1.9704209328782707) internal successors, (1732), 881 states have internal predecessors, (1732), 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) [2023-12-15 18:01:09,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-15 18:01:09,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:09,237 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] [2023-12-15 18:01:09,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:09,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:09,241 INFO L85 PathProgramCache]: Analyzing trace with hash 35018132, now seen corresponding path program 1 times [2023-12-15 18:01:09,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:09,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916818813] [2023-12-15 18:01:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:09,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:09,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:09,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916818813] [2023-12-15 18:01:09,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916818813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:09,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:09,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:01:09,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550087974] [2023-12-15 18:01:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:09,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 18:01:09,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:09,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 18:01:09,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:01:09,449 INFO L87 Difference]: Start difference. First operand has 882 states, 879 states have (on average 1.9704209328782707) internal successors, (1732), 881 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-12-15 18:01:09,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:09,513 INFO L93 Difference]: Finished difference Result 1699 states and 3336 transitions. [2023-12-15 18:01:09,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 18:01:09,518 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2023-12-15 18:01:09,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:09,529 INFO L225 Difference]: With dead ends: 1699 [2023-12-15 18:01:09,529 INFO L226 Difference]: Without dead ends: 878 [2023-12-15 18:01:09,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:01:09,536 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:09,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1661 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:09,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-15 18:01:09,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2023-12-15 18:01:09,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 876 states have (on average 1.8961187214611872) internal successors, (1661), 877 states have internal predecessors, (1661), 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) [2023-12-15 18:01:09,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1661 transitions. [2023-12-15 18:01:09,584 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1661 transitions. Word has length 27 [2023-12-15 18:01:09,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:09,584 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1661 transitions. [2023-12-15 18:01:09,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2023-12-15 18:01:09,585 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1661 transitions. [2023-12-15 18:01:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-15 18:01:09,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:09,586 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] [2023-12-15 18:01:09,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 18:01:09,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:09,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:09,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1770420202, now seen corresponding path program 1 times [2023-12-15 18:01:09,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:09,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799908506] [2023-12-15 18:01:09,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:09,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:09,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:09,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799908506] [2023-12-15 18:01:09,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799908506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:09,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:09,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 18:01:09,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761294336] [2023-12-15 18:01:09,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:09,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:09,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:09,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:09,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:09,769 INFO L87 Difference]: Start difference. First operand 878 states and 1661 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-15 18:01:09,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:09,853 INFO L93 Difference]: Finished difference Result 940 states and 1760 transitions. [2023-12-15 18:01:09,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:09,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-12-15 18:01:09,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:09,857 INFO L225 Difference]: With dead ends: 940 [2023-12-15 18:01:09,857 INFO L226 Difference]: Without dead ends: 878 [2023-12-15 18:01:09,858 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 [2023-12-15 18:01:09,860 INFO L413 NwaCegarLoop]: 1658 mSDtfsCounter, 0 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:09,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4909 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:09,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-15 18:01:09,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2023-12-15 18:01:09,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 876 states have (on average 1.82648401826484) internal successors, (1600), 877 states have internal predecessors, (1600), 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) [2023-12-15 18:01:09,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1600 transitions. [2023-12-15 18:01:09,879 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1600 transitions. Word has length 27 [2023-12-15 18:01:09,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:09,879 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1600 transitions. [2023-12-15 18:01:09,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-15 18:01:09,879 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1600 transitions. [2023-12-15 18:01:09,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-15 18:01:09,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:09,880 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] [2023-12-15 18:01:09,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 18:01:09,880 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:09,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:09,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1474592282, now seen corresponding path program 1 times [2023-12-15 18:01:09,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:09,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565408259] [2023-12-15 18:01:09,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:09,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:09,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:09,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565408259] [2023-12-15 18:01:09,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565408259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:09,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:09,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:01:09,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664987716] [2023-12-15 18:01:09,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:09,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:09,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:09,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:09,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:09,995 INFO L87 Difference]: Start difference. First operand 878 states and 1600 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2023-12-15 18:01:12,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:12,869 INFO L93 Difference]: Finished difference Result 2382 states and 4473 transitions. [2023-12-15 18:01:12,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:12,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2023-12-15 18:01:12,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:12,876 INFO L225 Difference]: With dead ends: 2382 [2023-12-15 18:01:12,877 INFO L226 Difference]: Without dead ends: 1629 [2023-12-15 18:01:12,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:12,879 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 929 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 3278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:12,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 235 Invalid, 3278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-15 18:01:12,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2023-12-15 18:01:12,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1629. [2023-12-15 18:01:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1627 states have (on average 1.8285187461585741) internal successors, (2975), 1628 states have internal predecessors, (2975), 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) [2023-12-15 18:01:12,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2975 transitions. [2023-12-15 18:01:12,903 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2975 transitions. Word has length 47 [2023-12-15 18:01:12,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:12,903 INFO L495 AbstractCegarLoop]: Abstraction has 1629 states and 2975 transitions. [2023-12-15 18:01:12,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2023-12-15 18:01:12,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2975 transitions. [2023-12-15 18:01:12,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-15 18:01:12,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:12,906 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] [2023-12-15 18:01:12,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 18:01:12,906 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:12,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:12,906 INFO L85 PathProgramCache]: Analyzing trace with hash -403621946, now seen corresponding path program 1 times [2023-12-15 18:01:12,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:12,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433252241] [2023-12-15 18:01:12,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:12,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:13,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:13,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433252241] [2023-12-15 18:01:13,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433252241] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:13,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:13,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:13,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994539061] [2023-12-15 18:01:13,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:13,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:13,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:13,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:13,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:13,147 INFO L87 Difference]: Start difference. First operand 1629 states and 2975 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2023-12-15 18:01:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:13,644 INFO L93 Difference]: Finished difference Result 2573 states and 4511 transitions. [2023-12-15 18:01:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 18:01:13,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 87 [2023-12-15 18:01:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:13,652 INFO L225 Difference]: With dead ends: 2573 [2023-12-15 18:01:13,652 INFO L226 Difference]: Without dead ends: 2514 [2023-12-15 18:01:13,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2023-12-15 18:01:13,658 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 13341 mSDsluCounter, 4679 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13341 SdHoareTripleChecker+Valid, 6272 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:13,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13341 Valid, 6272 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 18:01:13,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2514 states. [2023-12-15 18:01:13,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2514 to 1686. [2023-12-15 18:01:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1684 states have (on average 1.821852731591449) internal successors, (3068), 1685 states have internal predecessors, (3068), 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) [2023-12-15 18:01:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 3068 transitions. [2023-12-15 18:01:13,688 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 3068 transitions. Word has length 87 [2023-12-15 18:01:13,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:13,690 INFO L495 AbstractCegarLoop]: Abstraction has 1686 states and 3068 transitions. [2023-12-15 18:01:13,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2023-12-15 18:01:13,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 3068 transitions. [2023-12-15 18:01:13,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 18:01:13,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:13,696 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] [2023-12-15 18:01:13,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 18:01:13,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:13,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1473839658, now seen corresponding path program 1 times [2023-12-15 18:01:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:13,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215170102] [2023-12-15 18:01:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:13,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:13,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215170102] [2023-12-15 18:01:13,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215170102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:13,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:13,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:13,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12849801] [2023-12-15 18:01:13,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:13,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:13,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:13,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:13,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:13,810 INFO L87 Difference]: Start difference. First operand 1686 states and 3068 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-15 18:01:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:13,838 INFO L93 Difference]: Finished difference Result 1907 states and 3427 transitions. [2023-12-15 18:01:13,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:13,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2023-12-15 18:01:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:13,844 INFO L225 Difference]: With dead ends: 1907 [2023-12-15 18:01:13,844 INFO L226 Difference]: Without dead ends: 1791 [2023-12-15 18:01:13,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:13,845 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1504 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:13,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1685 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2023-12-15 18:01:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1789. [2023-12-15 18:01:13,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1787 states have (on average 1.8097369893676554) internal successors, (3234), 1788 states have internal predecessors, (3234), 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) [2023-12-15 18:01:13,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 3234 transitions. [2023-12-15 18:01:13,870 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 3234 transitions. Word has length 89 [2023-12-15 18:01:13,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:13,871 INFO L495 AbstractCegarLoop]: Abstraction has 1789 states and 3234 transitions. [2023-12-15 18:01:13,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-15 18:01:13,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 3234 transitions. [2023-12-15 18:01:13,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 18:01:13,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:13,872 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] [2023-12-15 18:01:13,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 18:01:13,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:13,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:13,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1471694706, now seen corresponding path program 1 times [2023-12-15 18:01:13,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:13,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272037747] [2023-12-15 18:01:13,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:13,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:14,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:14,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272037747] [2023-12-15 18:01:14,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272037747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:14,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:14,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:14,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396232205] [2023-12-15 18:01:14,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:14,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:14,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:14,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:14,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:14,194 INFO L87 Difference]: Start difference. First operand 1789 states and 3234 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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) [2023-12-15 18:01:14,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:14,520 INFO L93 Difference]: Finished difference Result 2010 states and 3590 transitions. [2023-12-15 18:01:14,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:14,521 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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 89 [2023-12-15 18:01:14,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:14,526 INFO L225 Difference]: With dead ends: 2010 [2023-12-15 18:01:14,526 INFO L226 Difference]: Without dead ends: 1791 [2023-12-15 18:01:14,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-15 18:01:14,527 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 10612 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10612 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:14,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10612 Valid, 2237 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:14,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2023-12-15 18:01:14,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1789. [2023-12-15 18:01:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1787 states have (on average 1.8086177951874651) internal successors, (3232), 1788 states have internal predecessors, (3232), 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) [2023-12-15 18:01:14,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 3232 transitions. [2023-12-15 18:01:14,549 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 3232 transitions. Word has length 89 [2023-12-15 18:01:14,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:14,549 INFO L495 AbstractCegarLoop]: Abstraction has 1789 states and 3232 transitions. [2023-12-15 18:01:14,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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) [2023-12-15 18:01:14,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 3232 transitions. [2023-12-15 18:01:14,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 18:01:14,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:14,550 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] [2023-12-15 18:01:14,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 18:01:14,550 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:14,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:14,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1493202169, now seen corresponding path program 1 times [2023-12-15 18:01:14,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:14,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706075803] [2023-12-15 18:01:14,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:14,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:14,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:14,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:14,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706075803] [2023-12-15 18:01:14,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706075803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:14,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:14,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 18:01:14,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016662252] [2023-12-15 18:01:14,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:14,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:01:14,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:14,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:01:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:01:14,692 INFO L87 Difference]: Start difference. First operand 1789 states and 3232 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-15 18:01:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:14,726 INFO L93 Difference]: Finished difference Result 1797 states and 3241 transitions. [2023-12-15 18:01:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:01:14,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2023-12-15 18:01:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:14,732 INFO L225 Difference]: With dead ends: 1797 [2023-12-15 18:01:14,732 INFO L226 Difference]: Without dead ends: 1795 [2023-12-15 18:01:14,733 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 [2023-12-15 18:01:14,733 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:14,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4780 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2023-12-15 18:01:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1793. [2023-12-15 18:01:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1791 states have (on average 1.806253489670575) internal successors, (3235), 1792 states have internal predecessors, (3235), 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) [2023-12-15 18:01:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 3235 transitions. [2023-12-15 18:01:14,761 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 3235 transitions. Word has length 90 [2023-12-15 18:01:14,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:14,761 INFO L495 AbstractCegarLoop]: Abstraction has 1793 states and 3235 transitions. [2023-12-15 18:01:14,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-15 18:01:14,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 3235 transitions. [2023-12-15 18:01:14,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:14,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:14,762 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] [2023-12-15 18:01:14,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 18:01:14,762 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:14,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:14,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1846675726, now seen corresponding path program 1 times [2023-12-15 18:01:14,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:14,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316823139] [2023-12-15 18:01:14,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:14,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:14,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:14,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316823139] [2023-12-15 18:01:14,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316823139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:14,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:14,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:14,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77206937] [2023-12-15 18:01:14,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:14,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:14,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:14,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:14,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:14,817 INFO L87 Difference]: Start difference. First operand 1793 states and 3235 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:14,843 INFO L93 Difference]: Finished difference Result 2027 states and 3608 transitions. [2023-12-15 18:01:14,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:14,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:14,849 INFO L225 Difference]: With dead ends: 2027 [2023-12-15 18:01:14,849 INFO L226 Difference]: Without dead ends: 1907 [2023-12-15 18:01:14,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:14,850 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 1524 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:14,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1773 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:14,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2023-12-15 18:01:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1905. [2023-12-15 18:01:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1903 states have (on average 1.7929584866001052) internal successors, (3412), 1904 states have internal predecessors, (3412), 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) [2023-12-15 18:01:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 3412 transitions. [2023-12-15 18:01:14,876 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 3412 transitions. Word has length 91 [2023-12-15 18:01:14,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:14,876 INFO L495 AbstractCegarLoop]: Abstraction has 1905 states and 3412 transitions. [2023-12-15 18:01:14,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 3412 transitions. [2023-12-15 18:01:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:14,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:14,877 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] [2023-12-15 18:01:14,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 18:01:14,877 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:14,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:14,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1921288206, now seen corresponding path program 1 times [2023-12-15 18:01:14,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:14,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269418423] [2023-12-15 18:01:14,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:14,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:14,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:14,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:14,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269418423] [2023-12-15 18:01:14,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269418423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:14,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:14,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:14,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504088018] [2023-12-15 18:01:14,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:14,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:14,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:14,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:14,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:14,934 INFO L87 Difference]: Start difference. First operand 1905 states and 3412 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:14,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:14,963 INFO L93 Difference]: Finished difference Result 2547 states and 4432 transitions. [2023-12-15 18:01:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:14,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:14,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:14,969 INFO L225 Difference]: With dead ends: 2547 [2023-12-15 18:01:14,969 INFO L226 Difference]: Without dead ends: 2214 [2023-12-15 18:01:14,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:14,971 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 1522 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:14,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:14,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2023-12-15 18:01:14,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2212. [2023-12-15 18:01:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2212 states, 2210 states have (on average 1.7619909502262443) internal successors, (3894), 2211 states have internal predecessors, (3894), 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) [2023-12-15 18:01:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 3894 transitions. [2023-12-15 18:01:15,002 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 3894 transitions. Word has length 91 [2023-12-15 18:01:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:15,002 INFO L495 AbstractCegarLoop]: Abstraction has 2212 states and 3894 transitions. [2023-12-15 18:01:15,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 3894 transitions. [2023-12-15 18:01:15,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:15,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:15,003 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] [2023-12-15 18:01:15,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 18:01:15,003 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:15,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:15,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2028681714, now seen corresponding path program 1 times [2023-12-15 18:01:15,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:15,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578266948] [2023-12-15 18:01:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:15,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:15,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:15,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578266948] [2023-12-15 18:01:15,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578266948] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:15,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:15,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:15,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152975088] [2023-12-15 18:01:15,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:15,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:15,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:15,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:15,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:15,108 INFO L87 Difference]: Start difference. First operand 2212 states and 3894 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:15,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:15,155 INFO L93 Difference]: Finished difference Result 3444 states and 5836 transitions. [2023-12-15 18:01:15,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:15,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:15,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:15,163 INFO L225 Difference]: With dead ends: 3444 [2023-12-15 18:01:15,163 INFO L226 Difference]: Without dead ends: 2804 [2023-12-15 18:01:15,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:15,165 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 1518 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:15,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1775 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2023-12-15 18:01:15,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2802. [2023-12-15 18:01:15,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 2800 states have (on average 1.7178571428571427) internal successors, (4810), 2801 states have internal predecessors, (4810), 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) [2023-12-15 18:01:15,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 4810 transitions. [2023-12-15 18:01:15,219 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 4810 transitions. Word has length 91 [2023-12-15 18:01:15,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:15,219 INFO L495 AbstractCegarLoop]: Abstraction has 2802 states and 4810 transitions. [2023-12-15 18:01:15,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:15,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 4810 transitions. [2023-12-15 18:01:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:15,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:15,220 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] [2023-12-15 18:01:15,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 18:01:15,220 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:15,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:15,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1997702414, now seen corresponding path program 1 times [2023-12-15 18:01:15,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:15,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356682877] [2023-12-15 18:01:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:15,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:15,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:15,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356682877] [2023-12-15 18:01:15,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356682877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:15,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:15,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:15,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054752060] [2023-12-15 18:01:15,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:15,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:15,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:15,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:15,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:15,283 INFO L87 Difference]: Start difference. First operand 2802 states and 4810 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:15,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:15,341 INFO L93 Difference]: Finished difference Result 5166 states and 8500 transitions. [2023-12-15 18:01:15,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:15,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:15,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:15,352 INFO L225 Difference]: With dead ends: 5166 [2023-12-15 18:01:15,353 INFO L226 Difference]: Without dead ends: 3936 [2023-12-15 18:01:15,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:15,355 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 1516 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:15,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1777 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:15,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2023-12-15 18:01:15,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3934. [2023-12-15 18:01:15,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3934 states, 3932 states have (on average 1.6648016276703967) internal successors, (6546), 3933 states have internal predecessors, (6546), 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) [2023-12-15 18:01:15,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 6546 transitions. [2023-12-15 18:01:15,441 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 6546 transitions. Word has length 91 [2023-12-15 18:01:15,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:15,441 INFO L495 AbstractCegarLoop]: Abstraction has 3934 states and 6546 transitions. [2023-12-15 18:01:15,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 6546 transitions. [2023-12-15 18:01:15,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:15,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:15,443 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] [2023-12-15 18:01:15,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 18:01:15,443 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:15,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:15,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2037646350, now seen corresponding path program 1 times [2023-12-15 18:01:15,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:15,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544820644] [2023-12-15 18:01:15,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:15,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:15,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:15,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:15,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544820644] [2023-12-15 18:01:15,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544820644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:15,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:15,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:15,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006877960] [2023-12-15 18:01:15,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:15,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:15,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:15,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:15,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:15,510 INFO L87 Difference]: Start difference. First operand 3934 states and 6546 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:15,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:15,614 INFO L93 Difference]: Finished difference Result 8466 states and 13540 transitions. [2023-12-15 18:01:15,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:15,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:15,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:15,634 INFO L225 Difference]: With dead ends: 8466 [2023-12-15 18:01:15,634 INFO L226 Difference]: Without dead ends: 6104 [2023-12-15 18:01:15,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:15,640 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 1514 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:15,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6104 states. [2023-12-15 18:01:15,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6104 to 6102. [2023-12-15 18:01:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6102 states, 6100 states have (on average 1.6108196721311476) internal successors, (9826), 6101 states have internal predecessors, (9826), 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) [2023-12-15 18:01:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6102 states to 6102 states and 9826 transitions. [2023-12-15 18:01:15,791 INFO L78 Accepts]: Start accepts. Automaton has 6102 states and 9826 transitions. Word has length 91 [2023-12-15 18:01:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:15,791 INFO L495 AbstractCegarLoop]: Abstraction has 6102 states and 9826 transitions. [2023-12-15 18:01:15,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6102 states and 9826 transitions. [2023-12-15 18:01:15,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:15,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:15,793 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] [2023-12-15 18:01:15,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 18:01:15,793 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:15,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:15,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1411990286, now seen corresponding path program 1 times [2023-12-15 18:01:15,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:15,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949346748] [2023-12-15 18:01:15,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:15,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:15,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:15,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949346748] [2023-12-15 18:01:15,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949346748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:15,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:15,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:15,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899673046] [2023-12-15 18:01:15,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:15,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:15,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:15,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:15,856 INFO L87 Difference]: Start difference. First operand 6102 states and 9826 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:15,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:15,975 INFO L93 Difference]: Finished difference Result 14778 states and 23044 transitions. [2023-12-15 18:01:15,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:15,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:15,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:15,992 INFO L225 Difference]: With dead ends: 14778 [2023-12-15 18:01:15,992 INFO L226 Difference]: Without dead ends: 10248 [2023-12-15 18:01:15,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:16,001 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1512 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:16,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1781 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:16,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10248 states. [2023-12-15 18:01:16,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10248 to 10246. [2023-12-15 18:01:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10246 states, 10244 states have (on average 1.5620851229988286) internal successors, (16002), 10245 states have internal predecessors, (16002), 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) [2023-12-15 18:01:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10246 states to 10246 states and 16002 transitions. [2023-12-15 18:01:16,219 INFO L78 Accepts]: Start accepts. Automaton has 10246 states and 16002 transitions. Word has length 91 [2023-12-15 18:01:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:16,220 INFO L495 AbstractCegarLoop]: Abstraction has 10246 states and 16002 transitions. [2023-12-15 18:01:16,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 10246 states and 16002 transitions. [2023-12-15 18:01:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:16,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:16,221 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] [2023-12-15 18:01:16,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 18:01:16,221 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:16,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:16,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1994243570, now seen corresponding path program 1 times [2023-12-15 18:01:16,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:16,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785761983] [2023-12-15 18:01:16,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:16,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:16,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:16,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785761983] [2023-12-15 18:01:16,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785761983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:16,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:16,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:16,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872575644] [2023-12-15 18:01:16,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:16,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:16,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:16,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:16,280 INFO L87 Difference]: Start difference. First operand 10246 states and 16002 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:16,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:16,614 INFO L93 Difference]: Finished difference Result 26826 states and 40900 transitions. [2023-12-15 18:01:16,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:16,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:16,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:16,645 INFO L225 Difference]: With dead ends: 26826 [2023-12-15 18:01:16,645 INFO L226 Difference]: Without dead ends: 18152 [2023-12-15 18:01:16,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:16,658 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 1510 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:16,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1783 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18152 states. [2023-12-15 18:01:16,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18152 to 18150. [2023-12-15 18:01:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18150 states, 18148 states have (on average 1.5200573065902578) internal successors, (27586), 18149 states have internal predecessors, (27586), 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) [2023-12-15 18:01:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18150 states to 18150 states and 27586 transitions. [2023-12-15 18:01:17,045 INFO L78 Accepts]: Start accepts. Automaton has 18150 states and 27586 transitions. Word has length 91 [2023-12-15 18:01:17,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:17,045 INFO L495 AbstractCegarLoop]: Abstraction has 18150 states and 27586 transitions. [2023-12-15 18:01:17,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:17,045 INFO L276 IsEmpty]: Start isEmpty. Operand 18150 states and 27586 transitions. [2023-12-15 18:01:17,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-15 18:01:17,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:17,046 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] [2023-12-15 18:01:17,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 18:01:17,046 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:17,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1618295026, now seen corresponding path program 1 times [2023-12-15 18:01:17,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:17,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134054348] [2023-12-15 18:01:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:17,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:01:17,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:17,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134054348] [2023-12-15 18:01:17,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134054348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:17,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:17,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:01:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70079903] [2023-12-15 18:01:17,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:17,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:01:17,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:17,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:01:17,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:17,099 INFO L87 Difference]: Start difference. First operand 18150 states and 27586 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:17,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:17,618 INFO L93 Difference]: Finished difference Result 49770 states and 74308 transitions. [2023-12-15 18:01:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:01:17,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-15 18:01:17,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:17,671 INFO L225 Difference]: With dead ends: 49770 [2023-12-15 18:01:17,671 INFO L226 Difference]: Without dead ends: 33192 [2023-12-15 18:01:17,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:01:17,684 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 1520 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:17,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1781 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 18:01:17,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33192 states. [2023-12-15 18:01:18,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33192 to 33190. [2023-12-15 18:01:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33190 states, 33188 states have (on average 1.4830059057490659) internal successors, (49218), 33189 states have internal predecessors, (49218), 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) [2023-12-15 18:01:18,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33190 states to 33190 states and 49218 transitions. [2023-12-15 18:01:18,414 INFO L78 Accepts]: Start accepts. Automaton has 33190 states and 49218 transitions. Word has length 91 [2023-12-15 18:01:18,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:18,414 INFO L495 AbstractCegarLoop]: Abstraction has 33190 states and 49218 transitions. [2023-12-15 18:01:18,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-15 18:01:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 33190 states and 49218 transitions. [2023-12-15 18:01:18,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:01:18,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:18,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:18,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 18:01:18,421 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:18,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:18,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1131544760, now seen corresponding path program 1 times [2023-12-15 18:01:18,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:18,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022948641] [2023-12-15 18:01:18,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:18,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:18,633 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 18:01:18,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:18,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022948641] [2023-12-15 18:01:18,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022948641] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:18,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:18,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:18,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454363225] [2023-12-15 18:01:18,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:18,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:18,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:18,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:18,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:18,636 INFO L87 Difference]: Start difference. First operand 33190 states and 49218 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2023-12-15 18:01:22,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:22,833 INFO L93 Difference]: Finished difference Result 282808 states and 414923 transitions. [2023-12-15 18:01:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:22,833 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-15 18:01:22,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:23,483 INFO L225 Difference]: With dead ends: 282808 [2023-12-15 18:01:23,483 INFO L226 Difference]: Without dead ends: 260790 [2023-12-15 18:01:23,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:01:23,577 INFO L413 NwaCegarLoop]: 1693 mSDtfsCounter, 11680 mSDsluCounter, 3496 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11680 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:23,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11680 Valid, 5189 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:23,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260790 states. [2023-12-15 18:01:26,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260790 to 60070. [2023-12-15 18:01:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60070 states, 60068 states have (on average 1.4693014583472066) internal successors, (88258), 60069 states have internal predecessors, (88258), 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) [2023-12-15 18:01:26,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60070 states to 60070 states and 88258 transitions. [2023-12-15 18:01:26,717 INFO L78 Accepts]: Start accepts. Automaton has 60070 states and 88258 transitions. Word has length 115 [2023-12-15 18:01:26,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:26,718 INFO L495 AbstractCegarLoop]: Abstraction has 60070 states and 88258 transitions. [2023-12-15 18:01:26,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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) [2023-12-15 18:01:26,718 INFO L276 IsEmpty]: Start isEmpty. Operand 60070 states and 88258 transitions. [2023-12-15 18:01:26,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:01:26,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:26,724 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:26,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 18:01:26,725 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:26,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:26,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1206157240, now seen corresponding path program 1 times [2023-12-15 18:01:26,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:26,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008170990] [2023-12-15 18:01:26,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:26,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-15 18:01:26,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:26,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008170990] [2023-12-15 18:01:26,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008170990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:26,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:26,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:26,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65424071] [2023-12-15 18:01:26,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:26,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:26,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:26,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:26,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:26,907 INFO L87 Difference]: Start difference. First operand 60070 states and 88258 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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) [2023-12-15 18:01:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:32,271 INFO L93 Difference]: Finished difference Result 314424 states and 461003 transitions. [2023-12-15 18:01:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:32,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-15 18:01:32,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:32,833 INFO L225 Difference]: With dead ends: 314424 [2023-12-15 18:01:32,833 INFO L226 Difference]: Without dead ends: 282806 [2023-12-15 18:01:32,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:01:32,880 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 11682 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11682 SdHoareTripleChecker+Valid, 5148 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:32,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11682 Valid, 5148 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:33,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282806 states. [2023-12-15 18:01:36,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282806 to 102694. [2023-12-15 18:01:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102694 states, 102692 states have (on average 1.4614770381334476) internal successors, (150082), 102693 states have internal predecessors, (150082), 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) [2023-12-15 18:01:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102694 states to 102694 states and 150082 transitions. [2023-12-15 18:01:37,150 INFO L78 Accepts]: Start accepts. Automaton has 102694 states and 150082 transitions. Word has length 115 [2023-12-15 18:01:37,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:37,150 INFO L495 AbstractCegarLoop]: Abstraction has 102694 states and 150082 transitions. [2023-12-15 18:01:37,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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) [2023-12-15 18:01:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 102694 states and 150082 transitions. [2023-12-15 18:01:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:01:37,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:37,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:37,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 18:01:37,164 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:37,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:37,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1551154616, now seen corresponding path program 1 times [2023-12-15 18:01:37,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:37,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064727491] [2023-12-15 18:01:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-15 18:01:37,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:37,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064727491] [2023-12-15 18:01:37,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064727491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:37,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:37,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509605618] [2023-12-15 18:01:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:37,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:37,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:37,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:37,343 INFO L87 Difference]: Start difference. First operand 102694 states and 150082 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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) [2023-12-15 18:01:44,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:44,082 INFO L93 Difference]: Finished difference Result 346040 states and 506955 transitions. [2023-12-15 18:01:44,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:44,082 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-15 18:01:44,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:44,782 INFO L225 Difference]: With dead ends: 346040 [2023-12-15 18:01:44,782 INFO L226 Difference]: Without dead ends: 314422 [2023-12-15 18:01:44,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:01:44,845 INFO L413 NwaCegarLoop]: 1690 mSDtfsCounter, 11722 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11722 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:44,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11722 Valid, 5175 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:01:45,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314422 states. [2023-12-15 18:01:50,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314422 to 134310. [2023-12-15 18:01:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134310 states, 134308 states have (on average 1.459585430503023) internal successors, (196034), 134309 states have internal predecessors, (196034), 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) [2023-12-15 18:01:50,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134310 states to 134310 states and 196034 transitions. [2023-12-15 18:01:50,626 INFO L78 Accepts]: Start accepts. Automaton has 134310 states and 196034 transitions. Word has length 115 [2023-12-15 18:01:50,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:01:50,626 INFO L495 AbstractCegarLoop]: Abstraction has 134310 states and 196034 transitions. [2023-12-15 18:01:50,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 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) [2023-12-15 18:01:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 134310 states and 196034 transitions. [2023-12-15 18:01:50,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 18:01:50,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:01:50,669 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:01:50,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 18:01:50,669 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:01:50,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:01:50,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1282571448, now seen corresponding path program 1 times [2023-12-15 18:01:50,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:01:50,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757185484] [2023-12-15 18:01:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:01:50,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:01:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:01:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 18:01:50,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:01:50,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757185484] [2023-12-15 18:01:50,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757185484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:01:50,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:01:50,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 18:01:50,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47350398] [2023-12-15 18:01:50,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:01:50,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 18:01:50,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:01:50,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 18:01:50,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-15 18:01:50,846 INFO L87 Difference]: Start difference. First operand 134310 states and 196034 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2023-12-15 18:01:59,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:01:59,047 INFO L93 Difference]: Finished difference Result 377656 states and 552907 transitions. [2023-12-15 18:01:59,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 18:01:59,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-15 18:01:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:01:59,763 INFO L225 Difference]: With dead ends: 377656 [2023-12-15 18:01:59,763 INFO L226 Difference]: Without dead ends: 346038 [2023-12-15 18:01:59,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-15 18:01:59,819 INFO L413 NwaCegarLoop]: 1688 mSDtfsCounter, 11774 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11774 SdHoareTripleChecker+Valid, 5083 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 18:01:59,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11774 Valid, 5083 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 18:02:00,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346038 states. Received shutdown request... [2023-12-15 18:02:02,552 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 18:02:03,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-15 18:02:05,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346038 to 165926. [2023-12-15 18:02:06,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165926 states, 165924 states have (on average 1.458414695884863) internal successors, (241986), 165925 states have internal predecessors, (241986), 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) [2023-12-15 18:02:06,086 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 18:02:06,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 18:02:06,087 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-15 18:02:06,089 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 18:02:06,091 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:02:06,096 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 18:02:06,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 06:02:06 BoogieIcfgContainer [2023-12-15 18:02:06,112 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 18:02:06,112 INFO L158 Benchmark]: Toolchain (without parser) took 62200.37ms. Allocated memory was 371.2MB in the beginning and 6.8GB in the end (delta: 6.4GB). Free memory was 304.7MB in the beginning and 4.3GB in the end (delta: -4.0GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-15 18:02:06,112 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory was 153.1MB in the beginning and 153.0MB in the end (delta: 138.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 18:02:06,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1330.60ms. Allocated memory is still 371.2MB. Free memory was 304.7MB in the beginning and 262.9MB in the end (delta: 41.7MB). Peak memory consumption was 79.9MB. Max. memory is 8.0GB. [2023-12-15 18:02:06,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 297.23ms. Allocated memory was 371.2MB in the beginning and 547.4MB in the end (delta: 176.2MB). Free memory was 262.9MB in the beginning and 435.5MB in the end (delta: -172.5MB). Peak memory consumption was 91.8MB. Max. memory is 8.0GB. [2023-12-15 18:02:06,113 INFO L158 Benchmark]: Boogie Preprocessor took 403.39ms. Allocated memory is still 547.4MB. Free memory was 435.5MB in the beginning and 388.8MB in the end (delta: 46.7MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-12-15 18:02:06,113 INFO L158 Benchmark]: RCFGBuilder took 3200.77ms. Allocated memory was 547.4MB in the beginning and 975.2MB in the end (delta: 427.8MB). Free memory was 388.8MB in the beginning and 816.1MB in the end (delta: -427.3MB). Peak memory consumption was 323.5MB. Max. memory is 8.0GB. [2023-12-15 18:02:06,113 INFO L158 Benchmark]: TraceAbstraction took 56961.70ms. Allocated memory was 975.2MB in the beginning and 6.8GB in the end (delta: 5.8GB). Free memory was 815.1MB in the beginning and 4.3GB in the end (delta: -3.5GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-15 18:02:06,114 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 203.4MB. Free memory was 153.1MB in the beginning and 153.0MB in the end (delta: 138.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1330.60ms. Allocated memory is still 371.2MB. Free memory was 304.7MB in the beginning and 262.9MB in the end (delta: 41.7MB). Peak memory consumption was 79.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 297.23ms. Allocated memory was 371.2MB in the beginning and 547.4MB in the end (delta: 176.2MB). Free memory was 262.9MB in the beginning and 435.5MB in the end (delta: -172.5MB). Peak memory consumption was 91.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 403.39ms. Allocated memory is still 547.4MB. Free memory was 435.5MB in the beginning and 388.8MB in the end (delta: 46.7MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * RCFGBuilder took 3200.77ms. Allocated memory was 547.4MB in the beginning and 975.2MB in the end (delta: 427.8MB). Free memory was 388.8MB in the beginning and 816.1MB in the end (delta: -427.3MB). Peak memory consumption was 323.5MB. Max. memory is 8.0GB. * TraceAbstraction took 56961.70ms. Allocated memory was 975.2MB in the beginning and 6.8GB in the end (delta: 5.8GB). Free memory was 815.1MB in the beginning and 4.3GB in the end (delta: -3.5GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 683). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 842]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 842). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 882 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 56.9s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 32.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85381 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85381 mSDsluCounter, 56602 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26573 mSDsCounter, 1130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4043 IncrementalHoareTripleChecker+Invalid, 5173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1130 mSolverCounterUnsat, 30029 mSDtfsCounter, 4043 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134310occurred in iteration=18, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 561794 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1644 NumberOfCodeBlocks, 1644 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1625 ConstructedInterpolants, 0 QuantifiedInterpolants, 10421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 80/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown