/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/Problem13_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:59:25,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:59:25,298 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 01:59:25,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:59:25,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:59:25,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:59:25,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:59:25,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:59:25,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:59:25,334 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:59:25,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:59:25,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:59:25,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:59:25,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:59:25,336 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:59:25,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:59:25,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:59:25,337 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:59:25,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:59:25,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:59:25,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:59:25,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:59:25,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:59:25,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:59:25,338 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:59:25,338 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:59:25,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:59:25,338 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:59:25,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:59:25,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:59:25,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:59:25,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:59:25,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:59:25,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:59:25,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:59:25,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:59:25,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:59:25,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:59:25,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:59:25,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:59:25,341 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:59:25,341 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:59:25,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:59:25,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:59:25,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:59:25,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:59:25,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:59:25,567 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:59:25,567 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:59:25,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label34.c [2023-12-16 01:59:26,642 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:59:27,040 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:59:27,041 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label34.c [2023-12-16 01:59:27,072 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99217dd50/aa96b3cf2f5e42749fc9271f5421dff9/FLAG9132d9ffb [2023-12-16 01:59:27,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99217dd50/aa96b3cf2f5e42749fc9271f5421dff9 [2023-12-16 01:59:27,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:59:27,087 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:59:27,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:59:27,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:59:27,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:59:27,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:59:27" (1/1) ... [2023-12-16 01:59:27,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40edafb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:27, skipping insertion in model container [2023-12-16 01:59:27,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:59:27" (1/1) ... [2023-12-16 01:59:27,226 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:59:27,506 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/Problem13_label34.c[7959,7972] [2023-12-16 01:59:28,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:59:28,063 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:59:28,082 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/Problem13_label34.c[7959,7972] [2023-12-16 01:59:28,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:59:28,427 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:59:28,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28 WrapperNode [2023-12-16 01:59:28,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:59:28,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:59:28,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:59:28,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:59:28,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:28,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:28,971 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587 [2023-12-16 01:59:28,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:59:28,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:59:28,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:59:28,972 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:59:28,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:28,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,221 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 01:59:29,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:59:29,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:59:29,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:59:29,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:59:29,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (1/1) ... [2023-12-16 01:59:29,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:59:29,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:59:29,630 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 01:59:29,649 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 01:59:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:59:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:59:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:59:29,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:59:29,709 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:59:29,710 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:59:33,907 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:59:33,942 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:59:33,942 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 01:59:33,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:59:33 BoogieIcfgContainer [2023-12-16 01:59:33,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:59:33,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:59:33,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:59:33,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:59:33,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:59:27" (1/3) ... [2023-12-16 01:59:33,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae6068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:59:33, skipping insertion in model container [2023-12-16 01:59:33,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:59:28" (2/3) ... [2023-12-16 01:59:33,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae6068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:59:33, skipping insertion in model container [2023-12-16 01:59:33,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:59:33" (3/3) ... [2023-12-16 01:59:33,948 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label34.c [2023-12-16 01:59:33,960 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:59:33,960 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 01:59:34,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:59:34,009 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;@72cf582c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:59:34,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 01:59:34,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 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 01:59:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 01:59:34,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:34,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:59:34,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:34,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:34,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1896251352, now seen corresponding path program 1 times [2023-12-16 01:59:34,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:34,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431624499] [2023-12-16 01:59:34,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:34,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:34,149 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 01:59:34,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:34,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431624499] [2023-12-16 01:59:34,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431624499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:34,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:34,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:59:34,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58958672] [2023-12-16 01:59:34,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:34,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:59:34,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:34,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:59:34,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:59:34,177 INFO L87 Difference]: Start difference. First operand has 1036 states, 1034 states have (on average 1.877176015473888) internal successors, (1941), 1035 states have internal predecessors, (1941), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 01:59:34,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:34,260 INFO L93 Difference]: Finished difference Result 2071 states and 3881 transitions. [2023-12-16 01:59:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:59:34,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2023-12-16 01:59:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:34,290 INFO L225 Difference]: With dead ends: 2071 [2023-12-16 01:59:34,290 INFO L226 Difference]: Without dead ends: 1034 [2023-12-16 01:59:34,294 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 01:59:34,297 INFO L413 NwaCegarLoop]: 1876 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, 1876 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 01:59:34,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1876 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:59:34,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-16 01:59:34,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2023-12-16 01:59:34,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.8160696999031947) internal successors, (1876), 1033 states have internal predecessors, (1876), 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 01:59:34,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1876 transitions. [2023-12-16 01:59:34,366 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1876 transitions. Word has length 55 [2023-12-16 01:59:34,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:34,367 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1876 transitions. [2023-12-16 01:59:34,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 01:59:34,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1876 transitions. [2023-12-16 01:59:34,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-16 01:59:34,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:34,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:59:34,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:59:34,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:34,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:34,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1679085179, now seen corresponding path program 1 times [2023-12-16 01:59:34,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:34,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522865792] [2023-12-16 01:59:34,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:34,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:34,559 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 01:59:34,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:34,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522865792] [2023-12-16 01:59:34,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522865792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:34,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:34,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:59:34,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508066322] [2023-12-16 01:59:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:34,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:34,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:34,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:34,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:34,562 INFO L87 Difference]: Start difference. First operand 1034 states and 1876 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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 01:59:38,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:38,049 INFO L93 Difference]: Finished difference Result 2931 states and 5350 transitions. [2023-12-16 01:59:38,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:38,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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 55 [2023-12-16 01:59:38,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:38,057 INFO L225 Difference]: With dead ends: 2931 [2023-12-16 01:59:38,058 INFO L226 Difference]: Without dead ends: 1898 [2023-12-16 01:59:38,059 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 01:59:38,060 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 959 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 2875 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 2875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:38,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 594 Invalid, 3435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 2875 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-16 01:59:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2023-12-16 01:59:38,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1893. [2023-12-16 01:59:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1892 states have (on average 1.73784355179704) internal successors, (3288), 1892 states have internal predecessors, (3288), 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 01:59:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 3288 transitions. [2023-12-16 01:59:38,109 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 3288 transitions. Word has length 55 [2023-12-16 01:59:38,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:38,109 INFO L495 AbstractCegarLoop]: Abstraction has 1893 states and 3288 transitions. [2023-12-16 01:59:38,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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 01:59:38,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 3288 transitions. [2023-12-16 01:59:38,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 01:59:38,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:38,115 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:59:38,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:59:38,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:38,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:38,116 INFO L85 PathProgramCache]: Analyzing trace with hash -179073679, now seen corresponding path program 1 times [2023-12-16 01:59:38,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:38,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162743037] [2023-12-16 01:59:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:38,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:59:38,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:38,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162743037] [2023-12-16 01:59:38,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162743037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:38,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:38,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:59:38,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753345337] [2023-12-16 01:59:38,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:38,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:38,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:38,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:38,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:38,377 INFO L87 Difference]: Start difference. First operand 1893 states and 3288 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 01:59:41,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:41,453 INFO L93 Difference]: Finished difference Result 5383 states and 9440 transitions. [2023-12-16 01:59:41,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:41,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 120 [2023-12-16 01:59:41,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:41,463 INFO L225 Difference]: With dead ends: 5383 [2023-12-16 01:59:41,463 INFO L226 Difference]: Without dead ends: 3491 [2023-12-16 01:59:41,471 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 01:59:41,475 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 922 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 3190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:41,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1011 Invalid, 3190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 01:59:41,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3491 states. [2023-12-16 01:59:41,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3491 to 3490. [2023-12-16 01:59:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 3489 states have (on average 1.5385497277156779) internal successors, (5368), 3489 states have internal predecessors, (5368), 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 01:59:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 5368 transitions. [2023-12-16 01:59:41,528 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 5368 transitions. Word has length 120 [2023-12-16 01:59:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:41,532 INFO L495 AbstractCegarLoop]: Abstraction has 3490 states and 5368 transitions. [2023-12-16 01:59:41,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 01:59:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 5368 transitions. [2023-12-16 01:59:41,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 01:59:41,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:41,541 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:59:41,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:59:41,541 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:41,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:41,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1013488940, now seen corresponding path program 1 times [2023-12-16 01:59:41,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:41,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890451780] [2023-12-16 01:59:41,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:41,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:59:41,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:41,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890451780] [2023-12-16 01:59:41,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890451780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:41,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:41,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:59:41,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694378036] [2023-12-16 01:59:41,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:41,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:41,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:41,671 INFO L87 Difference]: Start difference. First operand 3490 states and 5368 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:59:44,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:44,371 INFO L93 Difference]: Finished difference Result 10168 states and 15699 transitions. [2023-12-16 01:59:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:44,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2023-12-16 01:59:44,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:44,388 INFO L225 Difference]: With dead ends: 10168 [2023-12-16 01:59:44,388 INFO L226 Difference]: Without dead ends: 6679 [2023-12-16 01:59:44,392 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 01:59:44,393 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 977 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 3309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 775 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:44,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 845 Invalid, 3309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [775 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 01:59:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2023-12-16 01:59:44,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6668. [2023-12-16 01:59:44,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6668 states, 6667 states have (on average 1.3752812359382032) internal successors, (9169), 6667 states have internal predecessors, (9169), 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 01:59:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6668 states to 6668 states and 9169 transitions. [2023-12-16 01:59:44,470 INFO L78 Accepts]: Start accepts. Automaton has 6668 states and 9169 transitions. Word has length 122 [2023-12-16 01:59:44,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:44,471 INFO L495 AbstractCegarLoop]: Abstraction has 6668 states and 9169 transitions. [2023-12-16 01:59:44,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:59:44,471 INFO L276 IsEmpty]: Start isEmpty. Operand 6668 states and 9169 transitions. [2023-12-16 01:59:44,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 01:59:44,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:44,472 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:59:44,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:59:44,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:44,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:44,473 INFO L85 PathProgramCache]: Analyzing trace with hash 215289182, now seen corresponding path program 1 times [2023-12-16 01:59:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:44,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601124919] [2023-12-16 01:59:44,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:44,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:59:44,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:44,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601124919] [2023-12-16 01:59:44,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601124919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:44,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:44,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:59:44,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536011689] [2023-12-16 01:59:44,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:44,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:44,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:44,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:44,698 INFO L87 Difference]: Start difference. First operand 6668 states and 9169 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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 01:59:47,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:47,246 INFO L93 Difference]: Finished difference Result 14122 states and 19184 transitions. [2023-12-16 01:59:47,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:47,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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 166 [2023-12-16 01:59:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:47,263 INFO L225 Difference]: With dead ends: 14122 [2023-12-16 01:59:47,263 INFO L226 Difference]: Without dead ends: 7455 [2023-12-16 01:59:47,268 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 01:59:47,269 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 678 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2524 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:47,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1213 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2524 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 01:59:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7455 states. [2023-12-16 01:59:47,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7455 to 7455. [2023-12-16 01:59:47,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7455 states, 7454 states have (on average 1.3363294875234772) internal successors, (9961), 7454 states have internal predecessors, (9961), 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 01:59:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7455 states to 7455 states and 9961 transitions. [2023-12-16 01:59:47,355 INFO L78 Accepts]: Start accepts. Automaton has 7455 states and 9961 transitions. Word has length 166 [2023-12-16 01:59:47,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:47,356 INFO L495 AbstractCegarLoop]: Abstraction has 7455 states and 9961 transitions. [2023-12-16 01:59:47,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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 01:59:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 7455 states and 9961 transitions. [2023-12-16 01:59:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-12-16 01:59:47,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:47,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 01:59:47,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:59:47,357 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:47,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:47,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1902935284, now seen corresponding path program 1 times [2023-12-16 01:59:47,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:47,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621902287] [2023-12-16 01:59:47,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:47,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:59:47,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:47,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621902287] [2023-12-16 01:59:47,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621902287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:47,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:47,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:59:47,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252052690] [2023-12-16 01:59:47,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:47,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:59:47,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:47,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:59:47,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:59:47,481 INFO L87 Difference]: Start difference. First operand 7455 states and 9961 transitions. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 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 01:59:52,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:52,660 INFO L93 Difference]: Finished difference Result 26115 states and 35958 transitions. [2023-12-16 01:59:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:59:52,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2023-12-16 01:59:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:52,707 INFO L225 Difference]: With dead ends: 26115 [2023-12-16 01:59:52,708 INFO L226 Difference]: Without dead ends: 19448 [2023-12-16 01:59:52,718 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 01:59:52,720 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 1633 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 6107 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 6757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 6107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:52,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 1068 Invalid, 6757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 6107 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-16 01:59:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19448 states. [2023-12-16 01:59:52,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19448 to 19302. [2023-12-16 01:59:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19302 states, 19301 states have (on average 1.2778612507123983) internal successors, (24664), 19301 states have internal predecessors, (24664), 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 01:59:53,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19302 states to 19302 states and 24664 transitions. [2023-12-16 01:59:53,003 INFO L78 Accepts]: Start accepts. Automaton has 19302 states and 24664 transitions. Word has length 180 [2023-12-16 01:59:53,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:53,004 INFO L495 AbstractCegarLoop]: Abstraction has 19302 states and 24664 transitions. [2023-12-16 01:59:53,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 3 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 01:59:53,004 INFO L276 IsEmpty]: Start isEmpty. Operand 19302 states and 24664 transitions. [2023-12-16 01:59:53,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-16 01:59:53,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:53,007 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 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 01:59:53,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:59:53,008 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:53,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:53,008 INFO L85 PathProgramCache]: Analyzing trace with hash -861750944, now seen corresponding path program 1 times [2023-12-16 01:59:53,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:53,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594453434] [2023-12-16 01:59:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:53,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-12-16 01:59:53,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:53,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594453434] [2023-12-16 01:59:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594453434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:53,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:53,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:59:53,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439584394] [2023-12-16 01:59:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:53,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:53,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:53,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:53,312 INFO L87 Difference]: Start difference. First operand 19302 states and 24664 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 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 01:59:56,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:59:56,323 INFO L93 Difference]: Finished difference Result 33880 states and 44170 transitions. [2023-12-16 01:59:56,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:59:56,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 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 267 [2023-12-16 01:59:56,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:59:56,388 INFO L225 Difference]: With dead ends: 33880 [2023-12-16 01:59:56,389 INFO L226 Difference]: Without dead ends: 19311 [2023-12-16 01:59:56,403 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 01:59:56,405 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 728 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 2716 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:59:56,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1210 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2716 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:59:56,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19311 states. [2023-12-16 01:59:56,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19311 to 19302. [2023-12-16 01:59:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19302 states, 19301 states have (on average 1.276565981037252) internal successors, (24639), 19301 states have internal predecessors, (24639), 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 01:59:56,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19302 states to 19302 states and 24639 transitions. [2023-12-16 01:59:56,597 INFO L78 Accepts]: Start accepts. Automaton has 19302 states and 24639 transitions. Word has length 267 [2023-12-16 01:59:56,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:59:56,597 INFO L495 AbstractCegarLoop]: Abstraction has 19302 states and 24639 transitions. [2023-12-16 01:59:56,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 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 01:59:56,598 INFO L276 IsEmpty]: Start isEmpty. Operand 19302 states and 24639 transitions. [2023-12-16 01:59:56,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-16 01:59:56,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:59:56,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:56,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:59:56,600 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:59:56,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:59:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash 753462364, now seen corresponding path program 1 times [2023-12-16 01:59:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:59:56,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225094320] [2023-12-16 01:59:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:59:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:59:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:59:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:59:56,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:59:56,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225094320] [2023-12-16 01:59:56,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225094320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:59:56,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:59:56,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:59:56,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148970618] [2023-12-16 01:59:56,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:59:56,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:59:56,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:59:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:59:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:59:56,765 INFO L87 Difference]: Start difference. First operand 19302 states and 24639 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 02:00:00,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:00:00,167 INFO L93 Difference]: Finished difference Result 51974 states and 67213 transitions. [2023-12-16 02:00:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:00:00,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 269 [2023-12-16 02:00:00,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:00:00,213 INFO L225 Difference]: With dead ends: 51974 [2023-12-16 02:00:00,213 INFO L226 Difference]: Without dead ends: 32673 [2023-12-16 02:00:00,238 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 02:00:00,239 INFO L413 NwaCegarLoop]: 1852 mSDtfsCounter, 842 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:00:00,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1991 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 02:00:00,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32673 states. [2023-12-16 02:00:00,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32673 to 31089. [2023-12-16 02:00:00,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31089 states, 31088 states have (on average 1.2295741121976325) internal successors, (38225), 31088 states have internal predecessors, (38225), 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 02:00:00,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31089 states to 31089 states and 38225 transitions. [2023-12-16 02:00:00,598 INFO L78 Accepts]: Start accepts. Automaton has 31089 states and 38225 transitions. Word has length 269 [2023-12-16 02:00:00,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:00:00,598 INFO L495 AbstractCegarLoop]: Abstraction has 31089 states and 38225 transitions. [2023-12-16 02:00:00,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 02:00:00,599 INFO L276 IsEmpty]: Start isEmpty. Operand 31089 states and 38225 transitions. [2023-12-16 02:00:00,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-16 02:00:00,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:00:00,602 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:00:00,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 02:00:00,603 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:00:00,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:00:00,603 INFO L85 PathProgramCache]: Analyzing trace with hash -317189685, now seen corresponding path program 1 times [2023-12-16 02:00:00,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:00:00,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692844740] [2023-12-16 02:00:00,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:00:00,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:00:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:00:00,741 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-16 02:00:00,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:00:00,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692844740] [2023-12-16 02:00:00,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692844740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:00:00,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:00:00,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:00:00,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596148310] [2023-12-16 02:00:00,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:00:00,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:00:00,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:00:00,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:00:00,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:00:00,743 INFO L87 Difference]: Start difference. First operand 31089 states and 38225 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 02:00:04,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:00:04,038 INFO L93 Difference]: Finished difference Result 85798 states and 106633 transitions. [2023-12-16 02:00:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:00:04,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 291 [2023-12-16 02:00:04,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:00:04,153 INFO L225 Difference]: With dead ends: 85798 [2023-12-16 02:00:04,153 INFO L226 Difference]: Without dead ends: 55497 [2023-12-16 02:00:04,186 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 02:00:04,188 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 882 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 3296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 916 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:00:04,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 900 Invalid, 3296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [916 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 02:00:04,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55497 states. [2023-12-16 02:00:05,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55497 to 54700. [2023-12-16 02:00:05,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54700 states, 54699 states have (on average 1.186767582588347) internal successors, (64915), 54699 states have internal predecessors, (64915), 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 02:00:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54700 states to 54700 states and 64915 transitions. [2023-12-16 02:00:05,293 INFO L78 Accepts]: Start accepts. Automaton has 54700 states and 64915 transitions. Word has length 291 [2023-12-16 02:00:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:00:05,293 INFO L495 AbstractCegarLoop]: Abstraction has 54700 states and 64915 transitions. [2023-12-16 02:00:05,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 02:00:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 54700 states and 64915 transitions. [2023-12-16 02:00:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 02:00:05,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:00:05,299 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:05,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 02:00:05,299 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:00:05,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:00:05,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1373714603, now seen corresponding path program 1 times [2023-12-16 02:00:05,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:00:05,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017209588] [2023-12-16 02:00:05,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:00:05,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:00:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:00:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-16 02:00:05,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:00:05,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017209588] [2023-12-16 02:00:05,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017209588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:00:05,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:00:05,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:00:05,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647763801] [2023-12-16 02:00:05,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:00:05,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:00:05,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:00:05,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:00:05,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:00:05,543 INFO L87 Difference]: Start difference. First operand 54700 states and 64915 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 02:00:09,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:00:09,460 INFO L93 Difference]: Finished difference Result 129083 states and 155213 transitions. [2023-12-16 02:00:09,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:00:09,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 346 [2023-12-16 02:00:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:00:09,566 INFO L225 Difference]: With dead ends: 129083 [2023-12-16 02:00:09,566 INFO L226 Difference]: Without dead ends: 75171 [2023-12-16 02:00:09,588 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 02:00:09,588 INFO L413 NwaCegarLoop]: 1813 mSDtfsCounter, 805 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-16 02:00:09,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1956 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-16 02:00:09,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75171 states. [2023-12-16 02:00:10,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75171 to 74379. [2023-12-16 02:00:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74379 states, 74378 states have (on average 1.1514291860496384) internal successors, (85641), 74378 states have internal predecessors, (85641), 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 02:00:10,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74379 states to 74379 states and 85641 transitions. [2023-12-16 02:00:10,706 INFO L78 Accepts]: Start accepts. Automaton has 74379 states and 85641 transitions. Word has length 346 [2023-12-16 02:00:10,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:00:10,711 INFO L495 AbstractCegarLoop]: Abstraction has 74379 states and 85641 transitions. [2023-12-16 02:00:10,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 02:00:10,711 INFO L276 IsEmpty]: Start isEmpty. Operand 74379 states and 85641 transitions. [2023-12-16 02:00:10,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-12-16 02:00:10,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:00:10,721 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:00:10,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 02:00:10,721 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:00:10,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:00:10,721 INFO L85 PathProgramCache]: Analyzing trace with hash -729542348, now seen corresponding path program 1 times [2023-12-16 02:00:10,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:00:10,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076747411] [2023-12-16 02:00:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:00:10,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:00:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:00:11,858 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 236 proven. 113 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-16 02:00:11,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:00:11,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076747411] [2023-12-16 02:00:11,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076747411] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:00:11,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74397253] [2023-12-16 02:00:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:00:11,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:00:11,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:00:11,861 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 02:00:11,864 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 02:00:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:00:11,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 02:00:11,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:00:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-12-16 02:00:12,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:00:12,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74397253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:00:12,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 02:00:12,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-12-16 02:00:12,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413880926] [2023-12-16 02:00:12,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:00:12,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:00:12,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:00:12,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:00:12,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 02:00:12,121 INFO L87 Difference]: Start difference. First operand 74379 states and 85641 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 02:00:14,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:00:14,996 INFO L93 Difference]: Finished difference Result 147961 states and 170481 transitions. [2023-12-16 02:00:14,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:00:14,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 361 [2023-12-16 02:00:14,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:00:15,092 INFO L225 Difference]: With dead ends: 147961 [2023-12-16 02:00:15,092 INFO L226 Difference]: Without dead ends: 74370 [2023-12-16 02:00:15,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 02:00:15,146 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 1077 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 2923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:00:15,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 815 Invalid, 2923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 02:00:15,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74370 states. [2023-12-16 02:00:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74370 to 74369. [2023-12-16 02:00:16,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74369 states, 74368 states have (on average 1.113086273666093) internal successors, (82778), 74368 states have internal predecessors, (82778), 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 02:00:16,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74369 states to 74369 states and 82778 transitions. [2023-12-16 02:00:16,122 INFO L78 Accepts]: Start accepts. Automaton has 74369 states and 82778 transitions. Word has length 361 [2023-12-16 02:00:16,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:00:16,123 INFO L495 AbstractCegarLoop]: Abstraction has 74369 states and 82778 transitions. [2023-12-16 02:00:16,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 02:00:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 74369 states and 82778 transitions. [2023-12-16 02:00:16,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-16 02:00:16,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:00:16,128 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 02:00:16,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 02:00:16,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-16 02:00:16,333 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:00:16,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:00:16,334 INFO L85 PathProgramCache]: Analyzing trace with hash 221345827, now seen corresponding path program 1 times [2023-12-16 02:00:16,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:00:16,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785686888] [2023-12-16 02:00:16,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:00:16,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:00:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:00:16,809 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2023-12-16 02:00:16,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:00:16,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785686888] [2023-12-16 02:00:16,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785686888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:00:16,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:00:16,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:00:16,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011505522] [2023-12-16 02:00:16,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:00:16,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:00:16,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:00:16,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:00:16,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:00:16,811 INFO L87 Difference]: Start difference. First operand 74369 states and 82778 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 02:00:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:00:19,758 INFO L93 Difference]: Finished difference Result 145586 states and 162050 transitions. [2023-12-16 02:00:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:00:19,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 380 [2023-12-16 02:00:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:00:19,881 INFO L225 Difference]: With dead ends: 145586 [2023-12-16 02:00:19,881 INFO L226 Difference]: Without dead ends: 72005 [2023-12-16 02:00:19,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 02:00:19,914 INFO L413 NwaCegarLoop]: 1340 mSDtfsCounter, 1146 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:00:19,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 1418 Invalid, 2908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 02:00:19,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72005 states. [2023-12-16 02:00:20,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72005 to 72004. [2023-12-16 02:00:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72004 states, 72003 states have (on average 1.0866630557060122) internal successors, (78243), 72003 states have internal predecessors, (78243), 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 02:00:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72004 states to 72004 states and 78243 transitions. [2023-12-16 02:00:20,758 INFO L78 Accepts]: Start accepts. Automaton has 72004 states and 78243 transitions. Word has length 380 [2023-12-16 02:00:20,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:00:20,760 INFO L495 AbstractCegarLoop]: Abstraction has 72004 states and 78243 transitions. [2023-12-16 02:00:20,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 02:00:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 72004 states and 78243 transitions. [2023-12-16 02:00:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-12-16 02:00:20,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:00:20,783 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:00:20,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 02:00:20,783 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:00:20,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:00:20,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1248383698, now seen corresponding path program 1 times [2023-12-16 02:00:20,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:00:20,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655082003] [2023-12-16 02:00:20,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:00:20,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:00:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:00:21,223 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2023-12-16 02:00:21,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:00:21,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655082003] [2023-12-16 02:00:21,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655082003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:00:21,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:00:21,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:00:21,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856051539] [2023-12-16 02:00:21,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:00:21,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:00:21,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:00:21,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:00:21,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:00:21,225 INFO L87 Difference]: Start difference. First operand 72004 states and 78243 transitions. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 3 states have internal predecessors, (286), 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 02:00:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:00:27,105 INFO L93 Difference]: Finished difference Result 195374 states and 213137 transitions. [2023-12-16 02:00:27,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:00:27,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 3 states have internal predecessors, (286), 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 403 [2023-12-16 02:00:27,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:00:27,290 INFO L225 Difference]: With dead ends: 195374 [2023-12-16 02:00:27,290 INFO L226 Difference]: Without dead ends: 124158 [2023-12-16 02:00:27,342 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 02:00:27,346 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 1718 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 6002 mSolverCounterSat, 1097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 7099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1097 IncrementalHoareTripleChecker+Valid, 6002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:00:27,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 744 Invalid, 7099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1097 Valid, 6002 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-16 02:00:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124158 states. [2023-12-16 02:00:28,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124158 to 121666. Received shutdown request... [2023-12-16 02:00:28,751 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:00:28,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121666 states, 121665 states have (on average 1.0846093782106605) internal successors, (131959), 121665 states have internal predecessors, (131959), 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 02:00:28,771 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:00:28,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 02:00:28,772 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 02:00:28,775 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:00:28,776 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:00:28,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:00:28 BoogieIcfgContainer [2023-12-16 02:00:28,778 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:00:28,778 INFO L158 Benchmark]: Toolchain (without parser) took 61691.51ms. Allocated memory was 237.0MB in the beginning and 4.0GB in the end (delta: 3.7GB). Free memory was 170.9MB in the beginning and 2.5GB in the end (delta: -2.4GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 02:00:28,778 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 174.1MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:00:28,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1339.00ms. Allocated memory is still 237.0MB. Free memory was 170.9MB in the beginning and 137.2MB in the end (delta: 33.7MB). Peak memory consumption was 120.1MB. Max. memory is 8.0GB. [2023-12-16 02:00:28,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 542.99ms. Allocated memory was 237.0MB in the beginning and 384.8MB in the end (delta: 147.8MB). Free memory was 137.2MB in the beginning and 254.1MB in the end (delta: -116.8MB). Peak memory consumption was 135.3MB. Max. memory is 8.0GB. [2023-12-16 02:00:28,779 INFO L158 Benchmark]: Boogie Preprocessor took 625.53ms. Allocated memory is still 384.8MB. Free memory was 254.1MB in the beginning and 214.6MB in the end (delta: 39.4MB). Peak memory consumption was 111.3MB. Max. memory is 8.0GB. [2023-12-16 02:00:28,779 INFO L158 Benchmark]: RCFGBuilder took 4344.37ms. Allocated memory was 384.8MB in the beginning and 704.6MB in the end (delta: 319.8MB). Free memory was 214.6MB in the beginning and 374.1MB in the end (delta: -159.5MB). Peak memory consumption was 368.5MB. Max. memory is 8.0GB. [2023-12-16 02:00:28,779 INFO L158 Benchmark]: TraceAbstraction took 54833.55ms. Allocated memory was 704.6MB in the beginning and 4.0GB in the end (delta: 3.3GB). Free memory was 373.6MB in the beginning and 2.5GB in the end (delta: -2.2GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 02:00:28,780 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 174.1MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1339.00ms. Allocated memory is still 237.0MB. Free memory was 170.9MB in the beginning and 137.2MB in the end (delta: 33.7MB). Peak memory consumption was 120.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 542.99ms. Allocated memory was 237.0MB in the beginning and 384.8MB in the end (delta: 147.8MB). Free memory was 137.2MB in the beginning and 254.1MB in the end (delta: -116.8MB). Peak memory consumption was 135.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 625.53ms. Allocated memory is still 384.8MB. Free memory was 254.1MB in the beginning and 214.6MB in the end (delta: 39.4MB). Peak memory consumption was 111.3MB. Max. memory is 8.0GB. * RCFGBuilder took 4344.37ms. Allocated memory was 384.8MB in the beginning and 704.6MB in the end (delta: 319.8MB). Free memory was 214.6MB in the beginning and 374.1MB in the end (delta: -159.5MB). Peak memory consumption was 368.5MB. Max. memory is 8.0GB. * TraceAbstraction took 54833.55ms. Allocated memory was 704.6MB in the beginning and 4.0GB in the end (delta: 3.3GB). Free memory was 373.6MB in the beginning and 2.5GB in the end (delta: -2.2GB). Peak memory consumption was 1.4GB. 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: 190]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 190). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1036 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.8s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 43.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12367 SdHoareTripleChecker+Valid, 39.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12367 mSDsluCounter, 15641 SdHoareTripleChecker+Invalid, 32.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1730 mSDsCounter, 7436 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37349 IncrementalHoareTripleChecker+Invalid, 44785 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7436 mSolverCounterUnsat, 13911 mSDtfsCounter, 37349 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 400 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74379occurred in iteration=10, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 3347 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 3376 NumberOfCodeBlocks, 3376 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3362 ConstructedInterpolants, 0 QuantifiedInterpolants, 10269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 498 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 3218/3331 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