/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:54:39,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:54:39,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:54:39,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:54:39,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:54:39,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:54:39,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:54:39,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:54:39,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:54:39,427 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:54:39,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:54:39,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:54:39,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:54:39,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:54:39,429 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:54:39,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:54:39,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:54:39,430 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:54:39,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:54:39,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:54:39,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:54:39,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:54:39,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:54:39,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:54:39,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:54:39,432 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:54:39,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:54:39,432 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:54:39,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:54:39,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:54:39,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:54:39,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:54:39,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:54:39,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:54:39,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:54:39,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:54:39,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:54:39,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:54:39,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:54:39,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:54:39,435 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:54:39,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:54:39,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:54:39,435 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:54:39,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:54:39,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:54:39,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:54:39,671 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:54:39,672 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:54:39,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label35.c [2023-12-16 01:54:40,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:54:41,145 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:54:41,146 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label35.c [2023-12-16 01:54:41,169 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93272f713/b9a667c1b41145759ee6ed22177d348b/FLAGd3f642ee0 [2023-12-16 01:54:41,183 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93272f713/b9a667c1b41145759ee6ed22177d348b [2023-12-16 01:54:41,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:54:41,186 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:54:41,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:54:41,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:54:41,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:54:41,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:54:41" (1/1) ... [2023-12-16 01:54:41,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c95792c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:41, skipping insertion in model container [2023-12-16 01:54:41,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:54:41" (1/1) ... [2023-12-16 01:54:41,293 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:54:41,478 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label35.c[1310,1323] [2023-12-16 01:54:42,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:54:42,148 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:54:42,159 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label35.c[1310,1323] [2023-12-16 01:54:42,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:54:42,455 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:54:42,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42 WrapperNode [2023-12-16 01:54:42,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:54:42,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:54:42,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:54:42,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:54:42,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:42,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:42,766 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2023-12-16 01:54:42,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:54:42,767 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:54:42,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:54:42,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:54:42,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:42,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:42,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:42,971 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:54:42,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:42,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:43,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:43,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:43,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:43,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:43,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:54:43,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:54:43,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:54:43,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:54:43,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (1/1) ... [2023-12-16 01:54:43,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:54:43,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:54:43,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:54:43,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:54:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:54:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:54:43,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:54:43,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:54:43,427 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:54:43,429 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:54:46,400 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:54:46,455 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:54:46,456 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 01:54:46,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:54:46 BoogieIcfgContainer [2023-12-16 01:54:46,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:54:46,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:54:46,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:54:46,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:54:46,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:54:41" (1/3) ... [2023-12-16 01:54:46,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c990aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:54:46, skipping insertion in model container [2023-12-16 01:54:46,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:54:42" (2/3) ... [2023-12-16 01:54:46,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c990aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:54:46, skipping insertion in model container [2023-12-16 01:54:46,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:54:46" (3/3) ... [2023-12-16 01:54:46,463 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label35.c [2023-12-16 01:54:46,475 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:54:46,476 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 01:54:46,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:54:46,543 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;@60497d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:54:46,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 01:54:46,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-16 01:54:46,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:54:46,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-16 01:54:46,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:54:46,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:54:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2003002367, now seen corresponding path program 1 times [2023-12-16 01:54:46,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:54:46,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532376561] [2023-12-16 01:54:46,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:54:46,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:54:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:54:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:54:46,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:54:46,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532376561] [2023-12-16 01:54:46,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532376561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:54:46,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:54:46,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:54:46,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572338759] [2023-12-16 01:54:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:54:46,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:54:46,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:54:46,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:54:46,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:54:46,818 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:54:46,930 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2023-12-16 01:54:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:54:46,945 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-12-16 01:54:46,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:54:46,960 INFO L225 Difference]: With dead ends: 1511 [2023-12-16 01:54:46,961 INFO L226 Difference]: Without dead ends: 754 [2023-12-16 01:54:46,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:54:46,980 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:54:46,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:54:47,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-16 01:54:47,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-12-16 01:54:47,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:47,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2023-12-16 01:54:47,086 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 6 [2023-12-16 01:54:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:54:47,087 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2023-12-16 01:54:47,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2023-12-16 01:54:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-16 01:54:47,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:54:47,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-16 01:54:47,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:54:47,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:54:47,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:54:47,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1999238130, now seen corresponding path program 1 times [2023-12-16 01:54:47,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:54:47,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023529350] [2023-12-16 01:54:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:54:47,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:54:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:54:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:54:47,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:54:47,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023529350] [2023-12-16 01:54:47,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023529350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:54:47,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:54:47,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:54:47,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180848010] [2023-12-16 01:54:47,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:54:47,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:54:47,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:54:47,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:54:47,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:54:47,174 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:49,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:54:49,699 INFO L93 Difference]: Finished difference Result 2258 states and 4311 transitions. [2023-12-16 01:54:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:54:49,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-12-16 01:54:49,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:54:49,705 INFO L225 Difference]: With dead ends: 2258 [2023-12-16 01:54:49,705 INFO L226 Difference]: Without dead ends: 1505 [2023-12-16 01:54:49,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:54:49,707 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 811 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:54:49,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 426 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 01:54:49,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-12-16 01:54:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2023-12-16 01:54:49,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.6389627659574468) internal successors, (2465), 1504 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:49,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2465 transitions. [2023-12-16 01:54:49,787 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2465 transitions. Word has length 6 [2023-12-16 01:54:49,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:54:49,793 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2465 transitions. [2023-12-16 01:54:49,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:49,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2465 transitions. [2023-12-16 01:54:49,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 01:54:49,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:54:49,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:54:49,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:54:49,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:54:49,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:54:49,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2065069026, now seen corresponding path program 1 times [2023-12-16 01:54:49,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:54:49,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837871432] [2023-12-16 01:54:49,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:54:49,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:54:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:54:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:54:50,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:54:50,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837871432] [2023-12-16 01:54:50,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837871432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:54:50,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:54:50,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:54:50,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728549054] [2023-12-16 01:54:50,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:54:50,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:54:50,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:54:50,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:54:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:54:50,027 INFO L87 Difference]: Start difference. First operand 1505 states and 2465 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:52,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:54:52,442 INFO L93 Difference]: Finished difference Result 4511 states and 7392 transitions. [2023-12-16 01:54:52,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:54:52,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-16 01:54:52,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:54:52,450 INFO L225 Difference]: With dead ends: 4511 [2023-12-16 01:54:52,450 INFO L226 Difference]: Without dead ends: 3007 [2023-12-16 01:54:52,451 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 [2023-12-16 01:54:52,452 INFO L413 NwaCegarLoop]: 1381 mSDtfsCounter, 772 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:54:52,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1388 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 01:54:52,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2023-12-16 01:54:52,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 3007. [2023-12-16 01:54:52,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 1.363606121091151) internal successors, (4099), 3006 states have internal predecessors, (4099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4099 transitions. [2023-12-16 01:54:52,491 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4099 transitions. Word has length 77 [2023-12-16 01:54:52,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:54:52,495 INFO L495 AbstractCegarLoop]: Abstraction has 3007 states and 4099 transitions. [2023-12-16 01:54:52,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:52,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4099 transitions. [2023-12-16 01:54:52,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 01:54:52,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:54:52,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:54:52,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:54:52,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:54:52,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:54:52,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1174832142, now seen corresponding path program 1 times [2023-12-16 01:54:52,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:54:52,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703068638] [2023-12-16 01:54:52,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:54:52,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:54:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:54:52,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:54:52,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:54:52,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703068638] [2023-12-16 01:54:52,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703068638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:54:52,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:54:52,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:54:52,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464850007] [2023-12-16 01:54:52,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:54:52,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:54:52,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:54:52,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:54:52,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:54:52,635 INFO L87 Difference]: Start difference. First operand 3007 states and 4099 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:55,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:54:55,293 INFO L93 Difference]: Finished difference Result 7515 states and 10660 transitions. [2023-12-16 01:54:55,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:54:55,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2023-12-16 01:54:55,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:54:55,305 INFO L225 Difference]: With dead ends: 7515 [2023-12-16 01:54:55,305 INFO L226 Difference]: Without dead ends: 4509 [2023-12-16 01:54:55,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:54:55,309 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 748 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:54:55,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 518 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 01:54:55,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2023-12-16 01:54:55,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4509. [2023-12-16 01:54:55,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4509 states, 4508 states have (on average 1.3251996450754215) internal successors, (5974), 4508 states have internal predecessors, (5974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4509 states to 4509 states and 5974 transitions. [2023-12-16 01:54:55,362 INFO L78 Accepts]: Start accepts. Automaton has 4509 states and 5974 transitions. Word has length 80 [2023-12-16 01:54:55,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:54:55,363 INFO L495 AbstractCegarLoop]: Abstraction has 4509 states and 5974 transitions. [2023-12-16 01:54:55,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand 4509 states and 5974 transitions. [2023-12-16 01:54:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 01:54:55,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:54:55,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:54:55,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:54:55,364 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:54:55,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:54:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash -235848731, now seen corresponding path program 1 times [2023-12-16 01:54:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:54:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068362594] [2023-12-16 01:54:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:54:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:54:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:54:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:54:55,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:54:55,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068362594] [2023-12-16 01:54:55,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068362594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:54:55,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:54:55,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:54:55,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383044261] [2023-12-16 01:54:55,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:54:55,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:54:55,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:54:55,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:54:55,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:54:55,611 INFO L87 Difference]: Start difference. First operand 4509 states and 5974 transitions. Second operand has 4 states, 4 states have (on average 22.75) 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) [2023-12-16 01:54:59,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:54:59,584 INFO L93 Difference]: Finished difference Result 14274 states and 18790 transitions. [2023-12-16 01:54:59,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:54:59,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) 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 [2023-12-16 01:54:59,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:54:59,615 INFO L225 Difference]: With dead ends: 14274 [2023-12-16 01:54:59,615 INFO L226 Difference]: Without dead ends: 9766 [2023-12-16 01:54:59,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:54:59,620 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 2159 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4750 mSolverCounterSat, 778 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 5528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 778 IncrementalHoareTripleChecker+Valid, 4750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:54:59,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2159 Valid, 185 Invalid, 5528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [778 Valid, 4750 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-16 01:54:59,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2023-12-16 01:54:59,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9015. [2023-12-16 01:54:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9015 states, 9014 states have (on average 1.3037497226536499) internal successors, (11752), 9014 states have internal predecessors, (11752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:54:59,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9015 states to 9015 states and 11752 transitions. [2023-12-16 01:54:59,723 INFO L78 Accepts]: Start accepts. Automaton has 9015 states and 11752 transitions. Word has length 91 [2023-12-16 01:54:59,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:54:59,723 INFO L495 AbstractCegarLoop]: Abstraction has 9015 states and 11752 transitions. [2023-12-16 01:54:59,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) 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) [2023-12-16 01:54:59,723 INFO L276 IsEmpty]: Start isEmpty. Operand 9015 states and 11752 transitions. [2023-12-16 01:54:59,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-16 01:54:59,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:54:59,734 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:54:59,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:54:59,734 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:54:59,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:54:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash 862310422, now seen corresponding path program 1 times [2023-12-16 01:54:59,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:54:59,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881551233] [2023-12-16 01:54:59,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:54:59,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:54:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 01:55:00,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:00,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881551233] [2023-12-16 01:55:00,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881551233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:00,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:00,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:00,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80598441] [2023-12-16 01:55:00,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:00,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:55:00,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:00,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:55:00,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:55:00,020 INFO L87 Difference]: Start difference. First operand 9015 states and 11752 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:03,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:03,783 INFO L93 Difference]: Finished difference Result 22574 states and 30202 transitions. [2023-12-16 01:55:03,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:55:03,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2023-12-16 01:55:03,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:03,860 INFO L225 Difference]: With dead ends: 22574 [2023-12-16 01:55:03,860 INFO L226 Difference]: Without dead ends: 12772 [2023-12-16 01:55:03,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:55:03,869 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 690 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3807 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 4470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:03,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 711 Invalid, 4470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3807 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-16 01:55:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12772 states. [2023-12-16 01:55:04,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12772 to 12770. [2023-12-16 01:55:04,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12770 states, 12769 states have (on average 1.2170882606312163) internal successors, (15541), 12769 states have internal predecessors, (15541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:04,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12770 states to 12770 states and 15541 transitions. [2023-12-16 01:55:04,080 INFO L78 Accepts]: Start accepts. Automaton has 12770 states and 15541 transitions. Word has length 210 [2023-12-16 01:55:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:04,082 INFO L495 AbstractCegarLoop]: Abstraction has 12770 states and 15541 transitions. [2023-12-16 01:55:04,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 12770 states and 15541 transitions. [2023-12-16 01:55:04,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-16 01:55:04,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:04,085 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:55:04,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:55:04,085 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:04,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:04,086 INFO L85 PathProgramCache]: Analyzing trace with hash -438198980, now seen corresponding path program 1 times [2023-12-16 01:55:04,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:04,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684759116] [2023-12-16 01:55:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:04,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 41 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:04,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:04,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684759116] [2023-12-16 01:55:04,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684759116] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:55:04,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937627735] [2023-12-16 01:55:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:04,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:55:04,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:55:04,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:55:04,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:55:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:04,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:55:04,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:55:04,579 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 01:55:04,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:55:04,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937627735] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:04,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:55:04,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-12-16 01:55:04,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487612709] [2023-12-16 01:55:04,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:04,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:04,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:04,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:04,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:55:04,583 INFO L87 Difference]: Start difference. First operand 12770 states and 15541 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:07,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:07,252 INFO L93 Difference]: Finished difference Result 32298 states and 40250 transitions. [2023-12-16 01:55:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:07,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 236 [2023-12-16 01:55:07,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:07,280 INFO L225 Difference]: With dead ends: 32298 [2023-12-16 01:55:07,280 INFO L226 Difference]: Without dead ends: 20280 [2023-12-16 01:55:07,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:55:07,293 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 805 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 3046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 745 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:07,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 969 Invalid, 3046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [745 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 01:55:07,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20280 states. [2023-12-16 01:55:07,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20280 to 18778. [2023-12-16 01:55:07,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18778 states, 18777 states have (on average 1.2514778718645152) internal successors, (23499), 18777 states have internal predecessors, (23499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:07,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18778 states to 18778 states and 23499 transitions. [2023-12-16 01:55:07,617 INFO L78 Accepts]: Start accepts. Automaton has 18778 states and 23499 transitions. Word has length 236 [2023-12-16 01:55:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:07,617 INFO L495 AbstractCegarLoop]: Abstraction has 18778 states and 23499 transitions. [2023-12-16 01:55:07,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 18778 states and 23499 transitions. [2023-12-16 01:55:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-12-16 01:55:07,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:07,623 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:55:07,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 01:55:07,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:55:07,829 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:07,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:07,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1826750826, now seen corresponding path program 1 times [2023-12-16 01:55:07,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:07,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267715803] [2023-12-16 01:55:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:07,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:08,027 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 01:55:08,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:08,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267715803] [2023-12-16 01:55:08,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267715803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:08,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:08,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:08,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552622484] [2023-12-16 01:55:08,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:08,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:08,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:08,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:08,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:08,029 INFO L87 Difference]: Start difference. First operand 18778 states and 23499 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:10,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:10,214 INFO L93 Difference]: Finished difference Result 50322 states and 64011 transitions. [2023-12-16 01:55:10,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:10,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 386 [2023-12-16 01:55:10,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:10,268 INFO L225 Difference]: With dead ends: 50322 [2023-12-16 01:55:10,268 INFO L226 Difference]: Without dead ends: 32296 [2023-12-16 01:55:10,288 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 [2023-12-16 01:55:10,289 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 670 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 2936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:10,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 314 Invalid, 2936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 01:55:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32296 states. [2023-12-16 01:55:10,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32296 to 32296. [2023-12-16 01:55:10,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32296 states, 32295 states have (on average 1.2191670537234867) internal successors, (39373), 32295 states have internal predecessors, (39373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:10,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32296 states to 32296 states and 39373 transitions. [2023-12-16 01:55:10,751 INFO L78 Accepts]: Start accepts. Automaton has 32296 states and 39373 transitions. Word has length 386 [2023-12-16 01:55:10,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:10,752 INFO L495 AbstractCegarLoop]: Abstraction has 32296 states and 39373 transitions. [2023-12-16 01:55:10,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:10,752 INFO L276 IsEmpty]: Start isEmpty. Operand 32296 states and 39373 transitions. [2023-12-16 01:55:10,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2023-12-16 01:55:10,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:10,760 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:55:10,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:55:10,760 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:10,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:10,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1491305548, now seen corresponding path program 1 times [2023-12-16 01:55:10,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:10,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080303427] [2023-12-16 01:55:10,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:10,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 01:55:11,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:11,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080303427] [2023-12-16 01:55:11,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080303427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:11,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:11,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:11,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081136006] [2023-12-16 01:55:11,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:11,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:11,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:11,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:11,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:11,026 INFO L87 Difference]: Start difference. First operand 32296 states and 39373 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:13,426 INFO L93 Difference]: Finished difference Result 75856 states and 94530 transitions. [2023-12-16 01:55:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:13,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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 395 [2023-12-16 01:55:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:13,479 INFO L225 Difference]: With dead ends: 75856 [2023-12-16 01:55:13,479 INFO L226 Difference]: Without dead ends: 44312 [2023-12-16 01:55:13,508 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 [2023-12-16 01:55:13,508 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 610 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 2847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:13,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 1283 Invalid, 2847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 01:55:13,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44312 states. [2023-12-16 01:55:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44312 to 44312. [2023-12-16 01:55:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44312 states, 44311 states have (on average 1.1909232470492654) internal successors, (52771), 44311 states have internal predecessors, (52771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:14,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44312 states to 44312 states and 52771 transitions. [2023-12-16 01:55:14,079 INFO L78 Accepts]: Start accepts. Automaton has 44312 states and 52771 transitions. Word has length 395 [2023-12-16 01:55:14,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:14,080 INFO L495 AbstractCegarLoop]: Abstraction has 44312 states and 52771 transitions. [2023-12-16 01:55:14,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:14,080 INFO L276 IsEmpty]: Start isEmpty. Operand 44312 states and 52771 transitions. [2023-12-16 01:55:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-12-16 01:55:14,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:14,090 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:55:14,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:55:14,090 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:14,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:14,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2111065490, now seen corresponding path program 1 times [2023-12-16 01:55:14,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:14,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610442365] [2023-12-16 01:55:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:14,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:14,297 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-12-16 01:55:14,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:14,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610442365] [2023-12-16 01:55:14,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610442365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:14,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:14,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:55:14,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108340798] [2023-12-16 01:55:14,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:14,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:14,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:14,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:14,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:14,298 INFO L87 Difference]: Start difference. First operand 44312 states and 52771 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:17,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:17,113 INFO L93 Difference]: Finished difference Result 120167 states and 144291 transitions. [2023-12-16 01:55:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:17,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 407 [2023-12-16 01:55:17,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:17,195 INFO L225 Difference]: With dead ends: 120167 [2023-12-16 01:55:17,195 INFO L226 Difference]: Without dead ends: 71350 [2023-12-16 01:55:17,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:17,462 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 817 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:17,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 321 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 01:55:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71350 states. [2023-12-16 01:55:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71350 to 66091. [2023-12-16 01:55:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66091 states, 66090 states have (on average 1.1548191859585413) internal successors, (76322), 66090 states have internal predecessors, (76322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66091 states to 66091 states and 76322 transitions. [2023-12-16 01:55:18,284 INFO L78 Accepts]: Start accepts. Automaton has 66091 states and 76322 transitions. Word has length 407 [2023-12-16 01:55:18,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:18,284 INFO L495 AbstractCegarLoop]: Abstraction has 66091 states and 76322 transitions. [2023-12-16 01:55:18,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 66091 states and 76322 transitions. [2023-12-16 01:55:18,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2023-12-16 01:55:18,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:18,293 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:55:18,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 01:55:18,294 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:18,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:18,294 INFO L85 PathProgramCache]: Analyzing trace with hash 380675477, now seen corresponding path program 1 times [2023-12-16 01:55:18,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:18,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603943603] [2023-12-16 01:55:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:18,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 01:55:18,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:18,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603943603] [2023-12-16 01:55:18,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603943603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:18,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:18,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:18,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194267690] [2023-12-16 01:55:18,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:18,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:18,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:18,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:18,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:18,912 INFO L87 Difference]: Start difference. First operand 66091 states and 76322 transitions. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:21,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:21,818 INFO L93 Difference]: Finished difference Result 147952 states and 171495 transitions. [2023-12-16 01:55:21,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:21,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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 424 [2023-12-16 01:55:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:22,059 INFO L225 Difference]: With dead ends: 147952 [2023-12-16 01:55:22,059 INFO L226 Difference]: Without dead ends: 82613 [2023-12-16 01:55:22,070 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 [2023-12-16 01:55:22,072 INFO L413 NwaCegarLoop]: 1254 mSDtfsCounter, 696 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:22,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1261 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 01:55:22,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82613 states. [2023-12-16 01:55:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82613 to 78858. [2023-12-16 01:55:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78858 states, 78857 states have (on average 1.1429169255741405) internal successors, (90127), 78857 states have internal predecessors, (90127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78858 states to 78858 states and 90127 transitions. [2023-12-16 01:55:23,084 INFO L78 Accepts]: Start accepts. Automaton has 78858 states and 90127 transitions. Word has length 424 [2023-12-16 01:55:23,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:23,085 INFO L495 AbstractCegarLoop]: Abstraction has 78858 states and 90127 transitions. [2023-12-16 01:55:23,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:23,085 INFO L276 IsEmpty]: Start isEmpty. Operand 78858 states and 90127 transitions. [2023-12-16 01:55:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-12-16 01:55:23,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:23,120 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:55:23,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:55:23,121 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:23,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:23,121 INFO L85 PathProgramCache]: Analyzing trace with hash -713057436, now seen corresponding path program 1 times [2023-12-16 01:55:23,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:23,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988052837] [2023-12-16 01:55:23,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:23,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 270 proven. 5 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-16 01:55:23,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:23,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988052837] [2023-12-16 01:55:23,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988052837] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:55:23,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473041747] [2023-12-16 01:55:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:23,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:55:23,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:55:23,714 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:55:23,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 01:55:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:23,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:55:23,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:55:24,086 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-12-16 01:55:24,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:55:24,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473041747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:24,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:55:24,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-16 01:55:24,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248975748] [2023-12-16 01:55:24,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:24,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:24,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:24,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:55:24,088 INFO L87 Difference]: Start difference. First operand 78858 states and 90127 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:26,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:26,598 INFO L93 Difference]: Finished difference Result 156964 states and 179497 transitions. [2023-12-16 01:55:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:26,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 427 [2023-12-16 01:55:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:26,696 INFO L225 Difference]: With dead ends: 156964 [2023-12-16 01:55:26,696 INFO L226 Difference]: Without dead ends: 78858 [2023-12-16 01:55:26,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:55:26,733 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 644 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:26,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1150 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 2144 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 01:55:26,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78858 states. [2023-12-16 01:55:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78858 to 75854. [2023-12-16 01:55:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75854 states, 75853 states have (on average 1.0916773232436423) internal successors, (82807), 75853 states have internal predecessors, (82807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75854 states to 75854 states and 82807 transitions. [2023-12-16 01:55:27,703 INFO L78 Accepts]: Start accepts. Automaton has 75854 states and 82807 transitions. Word has length 427 [2023-12-16 01:55:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:27,704 INFO L495 AbstractCegarLoop]: Abstraction has 75854 states and 82807 transitions. [2023-12-16 01:55:27,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:27,705 INFO L276 IsEmpty]: Start isEmpty. Operand 75854 states and 82807 transitions. [2023-12-16 01:55:27,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-12-16 01:55:27,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:27,738 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:55:27,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 01:55:27,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-16 01:55:27,940 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:27,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:27,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1767307025, now seen corresponding path program 1 times [2023-12-16 01:55:27,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:27,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120620645] [2023-12-16 01:55:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:27,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-16 01:55:28,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:28,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120620645] [2023-12-16 01:55:28,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120620645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:28,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:28,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:28,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803164916] [2023-12-16 01:55:28,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:28,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:28,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:28,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:28,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:28,396 INFO L87 Difference]: Start difference. First operand 75854 states and 82807 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:31,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:31,189 INFO L93 Difference]: Finished difference Result 191510 states and 208661 transitions. [2023-12-16 01:55:31,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:31,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 440 [2023-12-16 01:55:31,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:31,342 INFO L225 Difference]: With dead ends: 191510 [2023-12-16 01:55:31,342 INFO L226 Difference]: Without dead ends: 116408 [2023-12-16 01:55:31,384 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 [2023-12-16 01:55:31,385 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 564 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:31,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1159 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 01:55:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116408 states. [2023-12-16 01:55:32,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116408 to 112653. [2023-12-16 01:55:32,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112653 states, 112652 states have (on average 1.0836913681070908) internal successors, (122080), 112652 states have internal predecessors, (122080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112653 states to 112653 states and 122080 transitions. [2023-12-16 01:55:33,152 INFO L78 Accepts]: Start accepts. Automaton has 112653 states and 122080 transitions. Word has length 440 [2023-12-16 01:55:33,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:33,152 INFO L495 AbstractCegarLoop]: Abstraction has 112653 states and 122080 transitions. [2023-12-16 01:55:33,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 112653 states and 122080 transitions. [2023-12-16 01:55:33,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-12-16 01:55:33,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:33,189 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:55:33,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:55:33,190 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:33,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:33,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1766767273, now seen corresponding path program 1 times [2023-12-16 01:55:33,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:33,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902404196] [2023-12-16 01:55:33,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:33,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-12-16 01:55:33,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:33,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902404196] [2023-12-16 01:55:33,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902404196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:33,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:33,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:33,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220702819] [2023-12-16 01:55:33,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:33,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:33,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:33,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:33,624 INFO L87 Difference]: Start difference. First operand 112653 states and 122080 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:37,096 INFO L93 Difference]: Finished difference Result 269614 states and 293180 transitions. [2023-12-16 01:55:37,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:37,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 551 [2023-12-16 01:55:37,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:37,334 INFO L225 Difference]: With dead ends: 269614 [2023-12-16 01:55:37,335 INFO L226 Difference]: Without dead ends: 157713 [2023-12-16 01:55:37,397 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 [2023-12-16 01:55:37,398 INFO L413 NwaCegarLoop]: 1232 mSDtfsCounter, 536 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:37,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1238 Invalid, 2760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:55:37,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157713 states. [2023-12-16 01:55:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157713 to 146448. [2023-12-16 01:55:39,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146448 states, 146447 states have (on average 1.069137640238448) internal successors, (156572), 146447 states have internal predecessors, (156572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146448 states to 146448 states and 156572 transitions. [2023-12-16 01:55:39,560 INFO L78 Accepts]: Start accepts. Automaton has 146448 states and 156572 transitions. Word has length 551 [2023-12-16 01:55:39,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:39,561 INFO L495 AbstractCegarLoop]: Abstraction has 146448 states and 156572 transitions. [2023-12-16 01:55:39,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:39,561 INFO L276 IsEmpty]: Start isEmpty. Operand 146448 states and 156572 transitions. [2023-12-16 01:55:39,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2023-12-16 01:55:39,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:39,573 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:55:39,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:55:39,573 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:39,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:39,574 INFO L85 PathProgramCache]: Analyzing trace with hash -265493388, now seen corresponding path program 1 times [2023-12-16 01:55:39,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:39,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759875822] [2023-12-16 01:55:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:39,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2023-12-16 01:55:40,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:40,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759875822] [2023-12-16 01:55:40,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759875822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:40,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:40,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:40,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309230950] [2023-12-16 01:55:40,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:40,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:55:40,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:40,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:55:40,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:55:40,241 INFO L87 Difference]: Start difference. First operand 146448 states and 156572 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 3 states have internal predecessors, (314), 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) Received shutdown request... [2023-12-16 01:55:41,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:55:41,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:55:41,938 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 786 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:41,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 20 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 01:55:41,939 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 01:55:41,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:55:41,940 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (146448states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (22949 states constructed, input type IntersectNwa). [2023-12-16 01:55:41,943 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:55:41,944 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:55:41,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:55:41 BoogieIcfgContainer [2023-12-16 01:55:41,946 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:55:41,946 INFO L158 Benchmark]: Toolchain (without parser) took 60760.65ms. Allocated memory was 372.2MB in the beginning and 5.5GB in the end (delta: 5.1GB). Free memory was 304.7MB in the beginning and 3.6GB in the end (delta: -3.3GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-16 01:55:41,946 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 195.0MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:55:41,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1268.14ms. Allocated memory is still 372.2MB. Free memory was 304.2MB in the beginning and 228.9MB in the end (delta: 75.3MB). Peak memory consumption was 86.3MB. Max. memory is 8.0GB. [2023-12-16 01:55:41,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 309.90ms. Allocated memory is still 372.2MB. Free memory was 228.9MB in the beginning and 276.2MB in the end (delta: -47.3MB). Peak memory consumption was 90.0MB. Max. memory is 8.0GB. [2023-12-16 01:55:41,947 INFO L158 Benchmark]: Boogie Preprocessor took 477.42ms. Allocated memory was 372.2MB in the beginning and 601.9MB in the end (delta: 229.6MB). Free memory was 276.2MB in the beginning and 449.1MB in the end (delta: -172.9MB). Peak memory consumption was 79.3MB. Max. memory is 8.0GB. [2023-12-16 01:55:41,947 INFO L158 Benchmark]: RCFGBuilder took 3210.85ms. Allocated memory was 601.9MB in the beginning and 1.2GB in the end (delta: 601.9MB). Free memory was 449.1MB in the beginning and 984.4MB in the end (delta: -535.3MB). Peak memory consumption was 143.1MB. Max. memory is 8.0GB. [2023-12-16 01:55:41,947 INFO L158 Benchmark]: TraceAbstraction took 55488.27ms. Allocated memory was 1.2GB in the beginning and 5.5GB in the end (delta: 4.3GB). Free memory was 983.3MB in the beginning and 3.6GB in the end (delta: -2.6GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-16 01:55:41,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 195.0MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1268.14ms. Allocated memory is still 372.2MB. Free memory was 304.2MB in the beginning and 228.9MB in the end (delta: 75.3MB). Peak memory consumption was 86.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 309.90ms. Allocated memory is still 372.2MB. Free memory was 228.9MB in the beginning and 276.2MB in the end (delta: -47.3MB). Peak memory consumption was 90.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 477.42ms. Allocated memory was 372.2MB in the beginning and 601.9MB in the end (delta: 229.6MB). Free memory was 276.2MB in the beginning and 449.1MB in the end (delta: -172.9MB). Peak memory consumption was 79.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3210.85ms. Allocated memory was 601.9MB in the beginning and 1.2GB in the end (delta: 601.9MB). Free memory was 449.1MB in the beginning and 984.4MB in the end (delta: -535.3MB). Peak memory consumption was 143.1MB. Max. memory is 8.0GB. * TraceAbstraction took 55488.27ms. Allocated memory was 1.2GB in the beginning and 5.5GB in the end (delta: 4.3GB). Free memory was 983.3MB in the beginning and 3.6GB in the end (delta: -2.6GB). Peak memory consumption was 1.8GB. 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: 43]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 43). Cancelled while NwaCegarLoop was constructing difference of abstraction (146448states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (22949 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 756 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.4s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 40.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11308 SdHoareTripleChecker+Valid, 35.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11308 mSDsluCounter, 12381 SdHoareTripleChecker+Invalid, 29.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 8221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35250 IncrementalHoareTripleChecker+Invalid, 43471 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8221 mSolverCounterUnsat, 12263 mSDtfsCounter, 35250 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 707 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146448occurred in iteration=14, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 29293 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 4983 NumberOfCodeBlocks, 4983 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4966 ConstructedInterpolants, 0 QuantifiedInterpolants, 14092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 892 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 17 InterpolantComputations, 15 PerfectInterpolantSequences, 3569/3626 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