/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-back-serstep.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:50:38,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:50:39,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 19:50:39,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:50:39,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:50:39,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:50:39,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:50:39,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:50:39,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:50:39,039 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:50:39,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:50:39,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:50:39,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:50:39,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:50:39,041 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:50:39,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:50:39,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:50:39,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:50:39,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:50:39,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:50:39,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:50:39,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:50:39,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:50:39,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:50:39,044 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:50:39,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:50:39,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:50:39,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:50:39,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:50:39,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:50:39,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:50:39,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:50:39,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:50:39,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:50:39,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:50:39,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:50:39,046 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:50:39,047 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:50:39,047 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:50:39,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:50:39,047 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:50:39,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:50:39,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:50:39,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:50:39,243 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:50:39,243 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:50:39,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-back-serstep.c [2023-12-16 19:50:40,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:50:40,594 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:50:40,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-back-serstep.c [2023-12-16 19:50:40,618 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b9137b9/7d291e08131841b2a10ebfb30eef8f63/FLAG31811295d [2023-12-16 19:50:40,632 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1b9137b9/7d291e08131841b2a10ebfb30eef8f63 [2023-12-16 19:50:40,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:50:40,636 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:50:40,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:50:40,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:50:40,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:50:40,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:50:40" (1/1) ... [2023-12-16 19:50:40,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2954d01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:40, skipping insertion in model container [2023-12-16 19:50:40,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:50:40" (1/1) ... [2023-12-16 19:50:40,718 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:50:40,929 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-back-serstep.c[1174,1187] [2023-12-16 19:50:41,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:50:41,448 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:50:41,457 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-back-serstep.c[1174,1187] [2023-12-16 19:50:41,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:50:41,770 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:50:41,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41 WrapperNode [2023-12-16 19:50:41,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:50:41,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:50:41,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:50:41,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:50:41,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:41,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:43,345 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19746 [2023-12-16 19:50:43,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:50:43,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:50:43,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:50:43,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:50:43,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:43,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:43,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:43,932 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 19:50:43,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:43,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:44,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:44,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:44,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:44,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:44,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:50:44,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:50:44,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:50:44,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:50:44,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (1/1) ... [2023-12-16 19:50:44,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:50:44,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:50:44,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 19:50:44,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 19:50:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:50:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:50:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:50:45,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:50:45,719 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:50:45,721 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:50:52,971 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:50:53,162 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:50:53,163 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:50:53,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:50:53 BoogieIcfgContainer [2023-12-16 19:50:53,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:50:53,166 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:50:53,166 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:50:53,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:50:53,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:50:40" (1/3) ... [2023-12-16 19:50:53,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f9eaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:50:53, skipping insertion in model container [2023-12-16 19:50:53,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:50:41" (2/3) ... [2023-12-16 19:50:53,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f9eaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:50:53, skipping insertion in model container [2023-12-16 19:50:53,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:50:53" (3/3) ... [2023-12-16 19:50:53,171 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.rether.2.prop1-back-serstep.c [2023-12-16 19:50:53,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:50:53,183 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:50:53,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:50:53,276 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;@20c51924, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:50:53,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:50:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 4423 states, 4421 states have (on average 1.6672698484505768) internal successors, (7371), 4422 states have internal predecessors, (7371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:53,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2023-12-16 19:50:53,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:50:53,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:50:53,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:50:53,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:50:53,315 INFO L85 PathProgramCache]: Analyzing trace with hash -28892220, now seen corresponding path program 1 times [2023-12-16 19:50:53,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:50:53,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358641649] [2023-12-16 19:50:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:50:53,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:50:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:50:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:50:55,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:50:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358641649] [2023-12-16 19:50:55,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358641649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:50:55,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:50:55,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:50:55,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434058957] [2023-12-16 19:50:55,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:50:55,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:50:55,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:50:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:50:55,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:50:55,364 INFO L87 Difference]: Start difference. First operand has 4423 states, 4421 states have (on average 1.6672698484505768) internal successors, (7371), 4422 states have internal predecessors, (7371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:50:55,570 INFO L93 Difference]: Finished difference Result 8650 states and 14418 transitions. [2023-12-16 19:50:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:50:55,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 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 546 [2023-12-16 19:50:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:50:55,601 INFO L225 Difference]: With dead ends: 8650 [2023-12-16 19:50:55,601 INFO L226 Difference]: Without dead ends: 4423 [2023-12-16 19:50:55,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:50:55,614 INFO L413 NwaCegarLoop]: 7364 mSDtfsCounter, 1 mSDsluCounter, 14723 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22087 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:50:55,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22087 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:50:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2023-12-16 19:50:55,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 4423. [2023-12-16 19:50:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 4422 states have (on average 1.6664405246494798) internal successors, (7369), 4422 states have internal predecessors, (7369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:55,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 7369 transitions. [2023-12-16 19:50:55,745 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 7369 transitions. Word has length 546 [2023-12-16 19:50:55,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:50:55,748 INFO L495 AbstractCegarLoop]: Abstraction has 4423 states and 7369 transitions. [2023-12-16 19:50:55,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:55,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 7369 transitions. [2023-12-16 19:50:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-12-16 19:50:55,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:50:55,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:50:55,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:50:55,756 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:50:55,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:50:55,757 INFO L85 PathProgramCache]: Analyzing trace with hash -893930620, now seen corresponding path program 1 times [2023-12-16 19:50:55,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:50:55,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088409646] [2023-12-16 19:50:55,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:50:55,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:50:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:50:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:50:56,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:50:56,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088409646] [2023-12-16 19:50:56,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088409646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:50:56,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:50:56,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:50:56,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811550318] [2023-12-16 19:50:56,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:50:56,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:50:56,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:50:56,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:50:56,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:50:56,711 INFO L87 Difference]: Start difference. First operand 4423 states and 7369 transitions. Second operand has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:56,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:50:56,828 INFO L93 Difference]: Finished difference Result 8653 states and 14416 transitions. [2023-12-16 19:50:56,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:50:56,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 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 547 [2023-12-16 19:50:56,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:50:56,841 INFO L225 Difference]: With dead ends: 8653 [2023-12-16 19:50:56,841 INFO L226 Difference]: Without dead ends: 4426 [2023-12-16 19:50:56,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:50:56,848 INFO L413 NwaCegarLoop]: 7364 mSDtfsCounter, 1 mSDsluCounter, 14721 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22085 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:50:56,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22085 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:50:56,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2023-12-16 19:50:56,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4425. [2023-12-16 19:50:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4425 states, 4424 states have (on average 1.6661392405063291) internal successors, (7371), 4424 states have internal predecessors, (7371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:56,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 7371 transitions. [2023-12-16 19:50:56,904 INFO L78 Accepts]: Start accepts. Automaton has 4425 states and 7371 transitions. Word has length 547 [2023-12-16 19:50:56,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:50:56,905 INFO L495 AbstractCegarLoop]: Abstraction has 4425 states and 7371 transitions. [2023-12-16 19:50:56,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:56,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4425 states and 7371 transitions. [2023-12-16 19:50:56,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2023-12-16 19:50:56,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:50:56,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:50:56,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:50:56,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:50:56,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:50:56,913 INFO L85 PathProgramCache]: Analyzing trace with hash -377467296, now seen corresponding path program 1 times [2023-12-16 19:50:56,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:50:56,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134621373] [2023-12-16 19:50:56,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:50:56,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:50:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:50:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:50:57,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:50:57,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134621373] [2023-12-16 19:50:57,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134621373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:50:57,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:50:57,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:50:57,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731964951] [2023-12-16 19:50:57,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:50:57,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:50:57,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:50:57,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:50:57,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 19:50:57,970 INFO L87 Difference]: Start difference. First operand 4425 states and 7371 transitions. Second operand has 5 states, 5 states have (on average 109.6) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:58,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:50:58,214 INFO L93 Difference]: Finished difference Result 13488 states and 22471 transitions. [2023-12-16 19:50:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:50:58,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.6) internal successors, (548), 4 states have internal predecessors, (548), 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 548 [2023-12-16 19:50:58,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:50:58,240 INFO L225 Difference]: With dead ends: 13488 [2023-12-16 19:50:58,240 INFO L226 Difference]: Without dead ends: 9259 [2023-12-16 19:50:58,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:50:58,251 INFO L413 NwaCegarLoop]: 8383 mSDtfsCounter, 28947 mSDsluCounter, 14722 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28947 SdHoareTripleChecker+Valid, 23105 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:50:58,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28947 Valid, 23105 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:50:58,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2023-12-16 19:50:58,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 5039. [2023-12-16 19:50:58,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5039 states, 5038 states have (on average 1.665938864628821) internal successors, (8393), 5038 states have internal predecessors, (8393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5039 states to 5039 states and 8393 transitions. [2023-12-16 19:50:58,363 INFO L78 Accepts]: Start accepts. Automaton has 5039 states and 8393 transitions. Word has length 548 [2023-12-16 19:50:58,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:50:58,363 INFO L495 AbstractCegarLoop]: Abstraction has 5039 states and 8393 transitions. [2023-12-16 19:50:58,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.6) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:50:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5039 states and 8393 transitions. [2023-12-16 19:50:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3352 [2023-12-16 19:50:58,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:50:58,543 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-16 19:50:58,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:50:58,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:50:58,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:50:58,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1852604750, now seen corresponding path program 1 times [2023-12-16 19:50:58,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:50:58,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793982749] [2023-12-16 19:50:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:50:58,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:50:59,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:50:59,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041183257] [2023-12-16 19:50:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:50:59,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:50:59,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:50:59,118 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 19:50:59,158 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 19:51:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:51:02,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 14810 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 19:51:02,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:51:03,264 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:51:03,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 19:51:03,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:51:03,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793982749] [2023-12-16 19:51:03,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:51:03,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041183257] [2023-12-16 19:51:03,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041183257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:51:03,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:51:03,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:51:03,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998533517] [2023-12-16 19:51:03,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:51:03,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:51:03,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:51:03,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:51:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:51:03,286 INFO L87 Difference]: Start difference. First operand 5039 states and 8393 transitions. Second operand has 4 states, 4 states have (on average 837.75) internal successors, (3351), 4 states have internal predecessors, (3351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:03,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:51:03,408 INFO L93 Difference]: Finished difference Result 9278 states and 15454 transitions. [2023-12-16 19:51:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:51:03,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 837.75) internal successors, (3351), 4 states have internal predecessors, (3351), 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 3351 [2023-12-16 19:51:03,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:51:03,438 INFO L225 Difference]: With dead ends: 9278 [2023-12-16 19:51:03,438 INFO L226 Difference]: Without dead ends: 5049 [2023-12-16 19:51:03,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3350 GetRequests, 3348 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:51:03,448 INFO L413 NwaCegarLoop]: 7364 mSDtfsCounter, 12 mSDsluCounter, 14718 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 22082 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 19:51:03,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 22082 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 19:51:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5049 states. [2023-12-16 19:51:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5049 to 5041. [2023-12-16 19:51:03,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5041 states, 5040 states have (on average 1.6656746031746033) internal successors, (8395), 5040 states have internal predecessors, (8395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 8395 transitions. [2023-12-16 19:51:03,529 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 8395 transitions. Word has length 3351 [2023-12-16 19:51:03,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:51:03,532 INFO L495 AbstractCegarLoop]: Abstraction has 5041 states and 8395 transitions. [2023-12-16 19:51:03,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 837.75) internal successors, (3351), 4 states have internal predecessors, (3351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 8395 transitions. [2023-12-16 19:51:03,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3352 [2023-12-16 19:51:03,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:51:03,699 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-16 19:51:03,744 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 19:51:03,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:51:03,925 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:51:03,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:51:03,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1371610880, now seen corresponding path program 1 times [2023-12-16 19:51:03,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:51:03,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120302699] [2023-12-16 19:51:03,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:51:03,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:51:04,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:51:04,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504974149] [2023-12-16 19:51:04,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:51:04,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:51:04,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:51:04,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:51:04,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 19:51:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:51:07,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 14811 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 19:51:07,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:51:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 6 proven. 375 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 19:51:08,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 19:51:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-16 19:51:08,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:51:08,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120302699] [2023-12-16 19:51:08,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:51:08,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504974149] [2023-12-16 19:51:08,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504974149] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 19:51:08,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 19:51:08,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-12-16 19:51:08,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039719287] [2023-12-16 19:51:08,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:51:08,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:51:08,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:51:08,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:51:08,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 19:51:08,610 INFO L87 Difference]: Start difference. First operand 5041 states and 8395 transitions. Second operand has 5 states, 5 states have (on average 588.8) internal successors, (2944), 5 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:51:13,665 INFO L93 Difference]: Finished difference Result 17334 states and 28741 transitions. [2023-12-16 19:51:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:51:13,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 588.8) internal successors, (2944), 5 states have internal predecessors, (2944), 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 3351 [2023-12-16 19:51:13,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:51:13,679 INFO L225 Difference]: With dead ends: 17334 [2023-12-16 19:51:13,679 INFO L226 Difference]: Without dead ends: 9268 [2023-12-16 19:51:13,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6701 GetRequests, 6692 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:51:13,688 INFO L413 NwaCegarLoop]: 12287 mSDtfsCounter, 12892 mSDsluCounter, 17843 mSDsCounter, 0 mSdLazyCounter, 8261 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12892 SdHoareTripleChecker+Valid, 30130 SdHoareTripleChecker+Invalid, 8652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 8261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-16 19:51:13,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12892 Valid, 30130 Invalid, 8652 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [391 Valid, 8261 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-16 19:51:13,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9268 states. [2023-12-16 19:51:13,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9268 to 5041. [2023-12-16 19:51:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5041 states, 5040 states have (on average 1.6656746031746033) internal successors, (8395), 5040 states have internal predecessors, (8395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 8395 transitions. [2023-12-16 19:51:13,767 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 8395 transitions. Word has length 3351 [2023-12-16 19:51:13,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:51:13,770 INFO L495 AbstractCegarLoop]: Abstraction has 5041 states and 8395 transitions. [2023-12-16 19:51:13,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 588.8) internal successors, (2944), 5 states have internal predecessors, (2944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:13,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 8395 transitions. [2023-12-16 19:51:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3353 [2023-12-16 19:51:13,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:51:13,869 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1] [2023-12-16 19:51:13,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 19:51:14,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:51:14,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:51:14,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:51:14,072 INFO L85 PathProgramCache]: Analyzing trace with hash -540438964, now seen corresponding path program 1 times [2023-12-16 19:51:14,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:51:14,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321190224] [2023-12-16 19:51:14,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:51:14,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:51:14,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:51:14,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581349027] [2023-12-16 19:51:14,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:51:14,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:51:14,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:51:14,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:51:14,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 19:51:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:51:17,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 14814 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-16 19:51:18,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:51:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 8 proven. 375 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 19:51:18,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 19:51:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-16 19:51:18,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:51:18,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321190224] [2023-12-16 19:51:18,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:51:18,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581349027] [2023-12-16 19:51:18,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581349027] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 19:51:18,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 19:51:18,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-12-16 19:51:18,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009893152] [2023-12-16 19:51:18,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:51:18,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:51:18,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:51:18,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:51:18,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 19:51:18,836 INFO L87 Difference]: Start difference. First operand 5041 states and 8395 transitions. Second operand has 6 states, 6 states have (on average 491.1666666666667) internal successors, (2947), 6 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:51:26,891 INFO L93 Difference]: Finished difference Result 21570 states and 35791 transitions. [2023-12-16 19:51:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:51:26,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 491.1666666666667) internal successors, (2947), 6 states have internal predecessors, (2947), 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 3352 [2023-12-16 19:51:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:51:26,918 INFO L225 Difference]: With dead ends: 21570 [2023-12-16 19:51:26,919 INFO L226 Difference]: Without dead ends: 13499 [2023-12-16 19:51:26,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6704 GetRequests, 6692 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-16 19:51:26,930 INFO L413 NwaCegarLoop]: 12281 mSDtfsCounter, 31638 mSDsluCounter, 28763 mSDsCounter, 0 mSdLazyCounter, 12580 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31638 SdHoareTripleChecker+Valid, 41044 SdHoareTripleChecker+Invalid, 12974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 12580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-12-16 19:51:26,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31638 Valid, 41044 Invalid, 12974 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [394 Valid, 12580 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-12-16 19:51:26,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13499 states. [2023-12-16 19:51:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13499 to 5043. [2023-12-16 19:51:27,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5043 states, 5042 states have (on average 1.6654105513685045) internal successors, (8397), 5042 states have internal predecessors, (8397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 8397 transitions. [2023-12-16 19:51:27,163 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 8397 transitions. Word has length 3352 [2023-12-16 19:51:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:51:27,170 INFO L495 AbstractCegarLoop]: Abstraction has 5043 states and 8397 transitions. [2023-12-16 19:51:27,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 491.1666666666667) internal successors, (2947), 6 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 8397 transitions. [2023-12-16 19:51:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3354 [2023-12-16 19:51:27,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:51:27,233 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1] [2023-12-16 19:51:27,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 19:51:27,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:51:27,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:51:27,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:51:27,450 INFO L85 PathProgramCache]: Analyzing trace with hash 227461402, now seen corresponding path program 1 times [2023-12-16 19:51:27,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:51:27,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603899112] [2023-12-16 19:51:27,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:51:27,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:51:27,839 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 19:51:27,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318104952] [2023-12-16 19:51:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:51:27,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:51:27,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:51:27,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 19:51:27,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 19:51:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:51:31,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 14817 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 19:51:31,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 19:51:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 10 proven. 375 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-16 19:51:31,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 19:51:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-12-16 19:51:32,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:51:32,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603899112] [2023-12-16 19:51:32,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 19:51:32,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318104952] [2023-12-16 19:51:32,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318104952] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 19:51:32,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 19:51:32,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-12-16 19:51:32,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116270635] [2023-12-16 19:51:32,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:51:32,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 19:51:32,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:51:32,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 19:51:32,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 19:51:32,079 INFO L87 Difference]: Start difference. First operand 5043 states and 8397 transitions. Second operand has 5 states, 5 states have (on average 590.0) internal successors, (2950), 5 states have internal predecessors, (2950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:36,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:51:36,880 INFO L93 Difference]: Finished difference Result 17346 states and 28753 transitions. [2023-12-16 19:51:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 19:51:36,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 590.0) internal successors, (2950), 5 states have internal predecessors, (2950), 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 3353 [2023-12-16 19:51:36,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:51:36,925 INFO L225 Difference]: With dead ends: 17346 [2023-12-16 19:51:36,925 INFO L226 Difference]: Without dead ends: 9268 [2023-12-16 19:51:36,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6705 GetRequests, 6696 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:51:36,935 INFO L413 NwaCegarLoop]: 12271 mSDtfsCounter, 12880 mSDsluCounter, 17823 mSDsCounter, 0 mSdLazyCounter, 8261 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12880 SdHoareTripleChecker+Valid, 30094 SdHoareTripleChecker+Invalid, 8652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 8261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-16 19:51:36,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12880 Valid, 30094 Invalid, 8652 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [391 Valid, 8261 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-16 19:51:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9268 states. [2023-12-16 19:51:37,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9268 to 5045. [2023-12-16 19:51:37,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 5044 states have (on average 1.665146708961142) internal successors, (8399), 5044 states have internal predecessors, (8399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 8399 transitions. [2023-12-16 19:51:37,036 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 8399 transitions. Word has length 3353 [2023-12-16 19:51:37,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:51:37,039 INFO L495 AbstractCegarLoop]: Abstraction has 5045 states and 8399 transitions. [2023-12-16 19:51:37,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 590.0) internal successors, (2950), 5 states have internal predecessors, (2950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 19:51:37,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 8399 transitions. [2023-12-16 19:51:37,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3355 [2023-12-16 19:51:37,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:51:37,115 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1] [2023-12-16 19:51:37,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 19:51:37,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 19:51:37,333 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:51:37,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:51:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1998640846, now seen corresponding path program 1 times [2023-12-16 19:51:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:51:37,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678810216] [2023-12-16 19:51:37,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:51:37,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2023-12-16 19:51:37,618 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 19:51:37,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-16 19:51:37,650 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 19:51:37,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 19:51:37,651 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 3355 with TraceHistMax 2,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1678810216] and IpTcStrategyModuleZ3 [484677679]. [2023-12-16 19:51:37,655 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:51:37,658 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 19:51:37,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:51:37 BoogieIcfgContainer [2023-12-16 19:51:37,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 19:51:37,677 INFO L158 Benchmark]: Toolchain (without parser) took 57040.10ms. Allocated memory was 210.8MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 165.8MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 918.8MB. Max. memory is 8.0GB. [2023-12-16 19:51:37,677 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 166.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:51:37,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1132.62ms. Allocated memory was 210.8MB in the beginning and 253.8MB in the end (delta: 43.0MB). Free memory was 165.8MB in the beginning and 123.5MB in the end (delta: 42.3MB). Peak memory consumption was 109.2MB. Max. memory is 8.0GB. [2023-12-16 19:51:37,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 1573.19ms. Allocated memory was 253.8MB in the beginning and 1.1GB in the end (delta: 804.3MB). Free memory was 123.5MB in the beginning and 707.6MB in the end (delta: -584.1MB). Peak memory consumption was 233.8MB. Max. memory is 8.0GB. [2023-12-16 19:51:37,677 INFO L158 Benchmark]: Boogie Preprocessor took 1539.24ms. Allocated memory was 1.1GB in the beginning and 2.9GB in the end (delta: 1.9GB). Free memory was 707.6MB in the beginning and 2.5GB in the end (delta: -1.8GB). Peak memory consumption was 159.4MB. Max. memory is 8.0GB. [2023-12-16 19:51:37,678 INFO L158 Benchmark]: RCFGBuilder took 8277.82ms. Allocated memory was 2.9GB in the beginning and 4.2GB in the end (delta: 1.2GB). Free memory was 2.5GB in the beginning and 3.5GB in the end (delta: -1.0GB). Peak memory consumption was 648.1MB. Max. memory is 8.0GB. [2023-12-16 19:51:37,678 INFO L158 Benchmark]: TraceAbstraction took 44510.45ms. Allocated memory was 4.2GB in the beginning and 4.7GB in the end (delta: 587.2MB). Free memory was 3.5GB in the beginning and 3.8GB in the end (delta: -289.9MB). Peak memory consumption was 297.8MB. Max. memory is 8.0GB. [2023-12-16 19:51:37,679 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 210.8MB. Free memory is still 166.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1132.62ms. Allocated memory was 210.8MB in the beginning and 253.8MB in the end (delta: 43.0MB). Free memory was 165.8MB in the beginning and 123.5MB in the end (delta: 42.3MB). Peak memory consumption was 109.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 1573.19ms. Allocated memory was 253.8MB in the beginning and 1.1GB in the end (delta: 804.3MB). Free memory was 123.5MB in the beginning and 707.6MB in the end (delta: -584.1MB). Peak memory consumption was 233.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 1539.24ms. Allocated memory was 1.1GB in the beginning and 2.9GB in the end (delta: 1.9GB). Free memory was 707.6MB in the beginning and 2.5GB in the end (delta: -1.8GB). Peak memory consumption was 159.4MB. Max. memory is 8.0GB. * RCFGBuilder took 8277.82ms. Allocated memory was 2.9GB in the beginning and 4.2GB in the end (delta: 1.2GB). Free memory was 2.5GB in the beginning and 3.5GB in the end (delta: -1.0GB). Peak memory consumption was 648.1MB. Max. memory is 8.0GB. * TraceAbstraction took 44510.45ms. Allocated memory was 4.2GB in the beginning and 4.7GB in the end (delta: 587.2MB). Free memory was 3.5GB in the beginning and 3.8GB in the end (delta: -289.9MB). Peak memory consumption was 297.8MB. 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: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 3355 with TraceHistMax 2,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1678810216] and IpTcStrategyModuleZ3 [484677679]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4423 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.4s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 18.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86371 SdHoareTripleChecker+Valid, 17.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86371 mSDsluCounter, 190627 SdHoareTripleChecker+Invalid, 14.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123313 mSDsCounter, 1178 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29162 IncrementalHoareTripleChecker+Invalid, 30340 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1178 mSolverCounterUnsat, 67314 mSDtfsCounter, 29162 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23477 GetRequests, 23435 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5045occurred in iteration=7, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 21135 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.0s SsaConstructionTime, 8.9s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 15048 NumberOfCodeBlocks, 15048 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 25094 ConstructedInterpolants, 0 QuantifiedInterpolants, 29391 SizeOfPredicates, 14 NumberOfNonLiveVariables, 59252 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 1773/2898 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