/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:46:49,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:46:49,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:46:49,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:46:49,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:46:49,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:46:49,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:46:49,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:46:49,330 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:46:49,334 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:46:49,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:46:49,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:46:49,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:46:49,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:46:49,335 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:46:49,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:46:49,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:46:49,336 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:46:49,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:46:49,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:46:49,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:46:49,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:46:49,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:46:49,339 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:46:49,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:46:49,339 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:46:49,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:46:49,340 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:46:49,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:46:49,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:46:49,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:46:49,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:46:49,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:46:49,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:46:49,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:46:49,341 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:46:49,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:46:49,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:46:49,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:46:49,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:46:49,342 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:46:49,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:46:49,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:46:49,343 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:46:49,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:46:49,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:46:49,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:46:49,542 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:46:49,542 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:46:49,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2023-12-15 21:46:50,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:46:50,782 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:46:50,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2023-12-15 21:46:50,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a2c37b4/8a4ce7da6a494679b3270e7e482bef82/FLAG4981d54d3 [2023-12-15 21:46:50,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a2c37b4/8a4ce7da6a494679b3270e7e482bef82 [2023-12-15 21:46:50,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:46:50,802 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:46:50,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:46:50,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:46:50,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:46:50,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:46:50" (1/1) ... [2023-12-15 21:46:50,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750a0f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:50, skipping insertion in model container [2023-12-15 21:46:50,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:46:50" (1/1) ... [2023-12-15 21:46:50,836 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:46:50,939 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i[917,930] [2023-12-15 21:46:50,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:46:51,009 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:46:51,017 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i[917,930] [2023-12-15 21:46:51,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:46:51,073 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:46:51,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51 WrapperNode [2023-12-15 21:46:51,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:46:51,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:46:51,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:46:51,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:46:51,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,138 INFO L138 Inliner]: procedures = 29, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 437 [2023-12-15 21:46:51,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:46:51,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:46:51,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:46:51,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:46:51,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,171 INFO L175 MemorySlicer]: Split 122 memory accesses to 2 slices as follows [2, 120]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 17 writes are split as follows [0, 17]. [2023-12-15 21:46:51,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:46:51,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:46:51,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:46:51,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:46:51,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (1/1) ... [2023-12-15 21:46:51,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:46:51,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:51,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 21:46:51,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 21:46:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:46:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-15 21:46:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-15 21:46:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:46:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:46:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:46:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:46:51,371 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:46:51,373 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:46:51,740 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:46:51,765 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:46:51,765 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:46:51,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:46:51 BoogieIcfgContainer [2023-12-15 21:46:51,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:46:51,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:46:51,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:46:51,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:46:51,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:46:50" (1/3) ... [2023-12-15 21:46:51,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638ad3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:46:51, skipping insertion in model container [2023-12-15 21:46:51,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:51" (2/3) ... [2023-12-15 21:46:51,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638ad3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:46:51, skipping insertion in model container [2023-12-15 21:46:51,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:46:51" (3/3) ... [2023-12-15 21:46:51,771 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-84.i [2023-12-15 21:46:51,783 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:46:51,783 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:46:51,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:46:51,830 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;@583e1c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:46:51,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:46:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 74 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-15 21:46:51,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 21:46:51,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:51,859 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:51,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:51,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:51,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2037949046, now seen corresponding path program 1 times [2023-12-15 21:46:51,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:51,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764636035] [2023-12-15 21:46:51,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:51,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:46:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:46:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:46:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:46:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:46:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:46:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:46:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:46:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:46:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:46:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:46:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:46:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:46:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:46:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:46:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:46:52,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:46:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 21:46:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 21:46:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 21:46:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,188 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:46:52,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:52,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764636035] [2023-12-15 21:46:52,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764636035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:52,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:52,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:46:52,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192834028] [2023-12-15 21:46:52,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:52,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:46:52,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:52,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:46:52,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:46:52,215 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 74 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-15 21:46:52,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:52,272 INFO L93 Difference]: Finished difference Result 189 states and 300 transitions. [2023-12-15 21:46:52,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:46:52,274 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2023-12-15 21:46:52,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:52,282 INFO L225 Difference]: With dead ends: 189 [2023-12-15 21:46:52,282 INFO L226 Difference]: Without dead ends: 94 [2023-12-15 21:46:52,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:46:52,289 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:46:52,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:46:52,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-15 21:46:52,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-15 21:46:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 72 states have internal predecessors, (96), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-15 21:46:52,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2023-12-15 21:46:52,335 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 145 [2023-12-15 21:46:52,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:52,335 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2023-12-15 21:46:52,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-15 21:46:52,335 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2023-12-15 21:46:52,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 21:46:52,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:52,338 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:52,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 21:46:52,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:52,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:52,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1859365614, now seen corresponding path program 1 times [2023-12-15 21:46:52,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106511485] [2023-12-15 21:46:52,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:52,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:46:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:46:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:46:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:46:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:46:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:46:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:46:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:46:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:46:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:46:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:46:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:46:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:46:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:46:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:46:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:46:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:46:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 21:46:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 21:46:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 21:46:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:46:52,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:52,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106511485] [2023-12-15 21:46:52,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106511485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:52,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:52,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:46:52,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120317541] [2023-12-15 21:46:52,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:52,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:46:52,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:52,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:46:52,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:46:52,774 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-15 21:46:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:52,836 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2023-12-15 21:46:52,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:46:52,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2023-12-15 21:46:52,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:52,840 INFO L225 Difference]: With dead ends: 191 [2023-12-15 21:46:52,840 INFO L226 Difference]: Without dead ends: 98 [2023-12-15 21:46:52,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:46:52,844 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 3 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:46:52,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 384 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:46:52,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-15 21:46:52,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2023-12-15 21:46:52,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 74 states have internal predecessors, (98), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-15 21:46:52,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2023-12-15 21:46:52,859 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 145 [2023-12-15 21:46:52,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:52,862 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2023-12-15 21:46:52,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-15 21:46:52,862 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2023-12-15 21:46:52,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 21:46:52,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:52,868 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:52,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 21:46:52,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:52,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:52,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1859425196, now seen corresponding path program 1 times [2023-12-15 21:46:52,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:52,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152784779] [2023-12-15 21:46:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:52,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:46:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:46:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:46:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:46:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:46:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:46:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:46:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:46:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:46:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:46:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:46:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:46:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:46:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:46:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:46:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:46:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:46:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 21:46:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 21:46:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 21:46:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:53,198 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:46:53,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:53,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152784779] [2023-12-15 21:46:53,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152784779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:53,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:53,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:46:53,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197362994] [2023-12-15 21:46:53,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:53,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:46:53,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:53,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:46:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:46:53,200 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-15 21:46:53,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:53,506 INFO L93 Difference]: Finished difference Result 289 states and 416 transitions. [2023-12-15 21:46:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:46:53,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2023-12-15 21:46:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:53,511 INFO L225 Difference]: With dead ends: 289 [2023-12-15 21:46:53,511 INFO L226 Difference]: Without dead ends: 194 [2023-12-15 21:46:53,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:46:53,516 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 142 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:46:53,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 362 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:46:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-15 21:46:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 162. [2023-12-15 21:46:53,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 119 states have internal predecessors, (153), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-15 21:46:53,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 233 transitions. [2023-12-15 21:46:53,542 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 233 transitions. Word has length 145 [2023-12-15 21:46:53,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:53,543 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 233 transitions. [2023-12-15 21:46:53,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-15 21:46:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 233 transitions. [2023-12-15 21:46:53,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-15 21:46:53,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:53,545 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:53,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 21:46:53,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:53,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:53,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2085711054, now seen corresponding path program 1 times [2023-12-15 21:46:53,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:53,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615371796] [2023-12-15 21:46:53,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:53,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:46:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:46:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:46:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:46:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:46:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:46:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:46:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:46:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:46:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:46:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:46:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:46:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:46:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:46:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:46:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:46:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:46:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 21:46:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 21:46:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 21:46:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:46:58,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:58,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615371796] [2023-12-15 21:46:58,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615371796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:58,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:58,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-15 21:46:58,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050707903] [2023-12-15 21:46:58,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:58,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-15 21:46:58,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:58,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-15 21:46:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-15 21:46:58,529 INFO L87 Difference]: Start difference. First operand 162 states and 233 transitions. Second operand has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-15 21:47:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:47:01,876 INFO L93 Difference]: Finished difference Result 420 states and 597 transitions. [2023-12-15 21:47:01,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-15 21:47:01,876 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153 [2023-12-15 21:47:01,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:47:01,878 INFO L225 Difference]: With dead ends: 420 [2023-12-15 21:47:01,879 INFO L226 Difference]: Without dead ends: 325 [2023-12-15 21:47:01,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=314, Invalid=1326, Unknown=0, NotChecked=0, Total=1640 [2023-12-15 21:47:01,880 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 644 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 21:47:01,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1036 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 21:47:01,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-15 21:47:01,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 186. [2023-12-15 21:47:01,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 143 states have internal predecessors, (186), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-15 21:47:01,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 266 transitions. [2023-12-15 21:47:01,902 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 266 transitions. Word has length 153 [2023-12-15 21:47:01,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:47:01,903 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 266 transitions. [2023-12-15 21:47:01,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 20 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-15 21:47:01,903 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 266 transitions. [2023-12-15 21:47:01,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-15 21:47:01,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:47:01,904 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:47:01,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 21:47:01,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:47:01,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:47:01,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1268062604, now seen corresponding path program 1 times [2023-12-15 21:47:01,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:47:01,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587476139] [2023-12-15 21:47:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:01,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:47:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:47:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:47:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:47:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:47:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:47:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:47:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:47:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:47:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:47:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:47:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:47:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:47:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:47:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:47:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:47:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:47:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:47:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 21:47:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 21:47:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 21:47:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,629 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-15 21:47:05,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:47:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587476139] [2023-12-15 21:47:05,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587476139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:47:05,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:47:05,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-15 21:47:05,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570299084] [2023-12-15 21:47:05,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:47:05,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-15 21:47:05,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:47:05,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-15 21:47:05,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-12-15 21:47:05,631 INFO L87 Difference]: Start difference. First operand 186 states and 266 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-15 21:47:07,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:47:07,837 INFO L93 Difference]: Finished difference Result 375 states and 535 transitions. [2023-12-15 21:47:07,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-15 21:47:07,838 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153 [2023-12-15 21:47:07,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:47:07,839 INFO L225 Difference]: With dead ends: 375 [2023-12-15 21:47:07,839 INFO L226 Difference]: Without dead ends: 265 [2023-12-15 21:47:07,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2023-12-15 21:47:07,840 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 431 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:47:07,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 817 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-15 21:47:07,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-15 21:47:07,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 188. [2023-12-15 21:47:07,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 145 states have internal predecessors, (190), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-15 21:47:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 270 transitions. [2023-12-15 21:47:07,863 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 270 transitions. Word has length 153 [2023-12-15 21:47:07,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:47:07,863 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 270 transitions. [2023-12-15 21:47:07,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-15 21:47:07,863 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 270 transitions. [2023-12-15 21:47:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-15 21:47:07,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:47:07,865 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:47:07,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 21:47:07,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:47:07,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:47:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2105566481, now seen corresponding path program 1 times [2023-12-15 21:47:07,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:47:07,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100817154] [2023-12-15 21:47:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:07,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:47:07,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:47:07,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645873811] [2023-12-15 21:47:07,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:07,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:47:07,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:47:07,907 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) [2023-12-15 21:47:07,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:47:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:08,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 123 conjunts are in the unsatisfiable core [2023-12-15 21:47:08,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:47:08,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-15 21:47:09,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-15 21:47:09,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-15 21:47:10,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-15 21:47:10,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-15 21:47:11,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-15 21:47:12,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-15 21:47:12,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-15 21:47:13,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-15 21:47:14,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-15 21:47:15,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2023-12-15 21:47:15,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 55 [2023-12-15 21:47:15,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-12-15 21:47:15,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2023-12-15 21:47:16,066 INFO L349 Elim1Store]: treesize reduction 32, result has 52.2 percent of original size [2023-12-15 21:47:16,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 178 treesize of output 166 [2023-12-15 21:47:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:16,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:16,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:16,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:16,280 INFO L349 Elim1Store]: treesize reduction 58, result has 13.4 percent of original size [2023-12-15 21:47:16,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 175 [2023-12-15 21:47:16,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:16,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:16,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:16,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:16,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 67 [2023-12-15 21:47:17,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:17,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:17,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:17,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:17,146 INFO L349 Elim1Store]: treesize reduction 223, result has 18.9 percent of original size [2023-12-15 21:47:17,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 132 treesize of output 209 [2023-12-15 21:47:17,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:17,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:17,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:17,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:17,348 INFO L349 Elim1Store]: treesize reduction 44, result has 29.0 percent of original size [2023-12-15 21:47:17,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 97 treesize of output 88 [2023-12-15 21:47:21,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:21,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:21,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:21,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:21,623 INFO L349 Elim1Store]: treesize reduction 235, result has 18.1 percent of original size [2023-12-15 21:47:21,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 148 treesize of output 225 [2023-12-15 21:47:21,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:21,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:21,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:21,989 INFO L349 Elim1Store]: treesize reduction 64, result has 37.9 percent of original size [2023-12-15 21:47:21,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 91 treesize of output 120 [2023-12-15 21:47:32,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:32,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:32,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:32,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:33,031 INFO L349 Elim1Store]: treesize reduction 373, result has 25.3 percent of original size [2023-12-15 21:47:33,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 14 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 132 treesize of output 275 [2023-12-15 21:47:33,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:33,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:33,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:33,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:33,268 INFO L349 Elim1Store]: treesize reduction 96, result has 26.7 percent of original size [2023-12-15 21:47:33,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 79 treesize of output 96 Received shutdown request... [2023-12-15 21:47:51,264 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:47:51,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:47:51,288 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:47:51,289 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:47:51,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-15 21:47:51,466 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 155 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-27-13-2-1 context. [2023-12-15 21:47:51,469 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-15 21:47:51,471 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:47:51,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:47:51 BoogieIcfgContainer [2023-12-15 21:47:51,473 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:47:51,473 INFO L158 Benchmark]: Toolchain (without parser) took 60671.18ms. Allocated memory was 197.1MB in the beginning and 882.9MB in the end (delta: 685.8MB). Free memory was 147.0MB in the beginning and 318.8MB in the end (delta: -171.8MB). Peak memory consumption was 526.7MB. Max. memory is 8.0GB. [2023-12-15 21:47:51,475 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 197.1MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:47:51,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.72ms. Allocated memory is still 197.1MB. Free memory was 147.0MB in the beginning and 130.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-15 21:47:51,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.35ms. Allocated memory is still 197.1MB. Free memory was 130.6MB in the beginning and 126.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:47:51,478 INFO L158 Benchmark]: Boogie Preprocessor took 69.16ms. Allocated memory is still 197.1MB. Free memory was 126.1MB in the beginning and 121.2MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 21:47:51,479 INFO L158 Benchmark]: RCFGBuilder took 557.34ms. Allocated memory was 197.1MB in the beginning and 288.4MB in the end (delta: 91.2MB). Free memory was 121.2MB in the beginning and 238.6MB in the end (delta: -117.4MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. [2023-12-15 21:47:51,479 INFO L158 Benchmark]: TraceAbstraction took 59705.44ms. Allocated memory was 288.4MB in the beginning and 882.9MB in the end (delta: 594.5MB). Free memory was 238.1MB in the beginning and 318.8MB in the end (delta: -80.8MB). Peak memory consumption was 525.3MB. Max. memory is 8.0GB. [2023-12-15 21:47:51,480 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 197.1MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 271.72ms. Allocated memory is still 197.1MB. Free memory was 147.0MB in the beginning and 130.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.35ms. Allocated memory is still 197.1MB. Free memory was 130.6MB in the beginning and 126.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.16ms. Allocated memory is still 197.1MB. Free memory was 126.1MB in the beginning and 121.2MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 557.34ms. Allocated memory was 197.1MB in the beginning and 288.4MB in the end (delta: 91.2MB). Free memory was 121.2MB in the beginning and 238.6MB in the end (delta: -117.4MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. * TraceAbstraction took 59705.44ms. Allocated memory was 288.4MB in the beginning and 882.9MB in the end (delta: 594.5MB). Free memory was 238.1MB in the beginning and 318.8MB in the end (delta: -80.8MB). Peak memory consumption was 525.3MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 155 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-6-1 term,while PolyPacSimplificationTermWalker was simplifying 6 xjuncts wrt. a ∧-27-13-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.7s, OverallIterations: 6, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1222 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1220 mSDsluCounter, 2731 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2179 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3174 IncrementalHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 552 mSDtfsCounter, 3174 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 331 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=5, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 250 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 741 NumberOfCodeBlocks, 741 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 736 ConstructedInterpolants, 0 QuantifiedInterpolants, 10653 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3800/3800 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