/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/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:06:30,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:06:30,067 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 23:06:30,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:06:30,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:06:30,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:06:30,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:06:30,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:06:30,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:06:30,101 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:06:30,101 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:06:30,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:06:30,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:06:30,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:06:30,103 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:06:30,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:06:30,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:06:30,103 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:06:30,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:06:30,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:06:30,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:06:30,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:06:30,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:06:30,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:06:30,105 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:06:30,105 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:06:30,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:06:30,105 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:06:30,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:06:30,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:06:30,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:06:30,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:06:30,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:06:30,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:06:30,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:06:30,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:06:30,107 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:06:30,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:06:30,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:06:30,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:06:30,107 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:06:30,108 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:06:30,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:06:30,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:06:30,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:06:30,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:06:30,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:06:30,283 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:06:30,283 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:06:30,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2023-12-15 23:06:31,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:06:31,474 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:06:31,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2023-12-15 23:06:31,485 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce179f7cd/20bc14e954d0410aa30bc583e3326c6c/FLAGfca9f4bb2 [2023-12-15 23:06:31,496 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce179f7cd/20bc14e954d0410aa30bc583e3326c6c [2023-12-15 23:06:31,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:06:31,499 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:06:31,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:06:31,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:06:31,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:06:31,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760d1008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31, skipping insertion in model container [2023-12-15 23:06:31,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,537 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:06:31,647 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c[640,653] [2023-12-15 23:06:31,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:06:31,696 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:06:31,704 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c[640,653] [2023-12-15 23:06:31,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:06:31,734 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:06:31,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31 WrapperNode [2023-12-15 23:06:31,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:06:31,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:06:31,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:06:31,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:06:31,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,761 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 227 [2023-12-15 23:06:31,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:06:31,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:06:31,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:06:31,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:06:31,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,783 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 23:06:31,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:06:31,810 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:06:31,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:06:31,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:06:31,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (1/1) ... [2023-12-15 23:06:31,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:06:31,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:06:31,840 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 23:06:31,864 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 23:06:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:06:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-15 23:06:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-15 23:06:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-15 23:06:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-15 23:06:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 23:06:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 23:06:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 23:06:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 23:06:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 23:06:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 23:06:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 23:06:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 23:06:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:06:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 23:06:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 23:06:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:06:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:06:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-15 23:06:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-15 23:06:31,963 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:06:31,966 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:06:32,213 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2023-12-15 23:06:32,213 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2023-12-15 23:06:32,225 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:06:32,263 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:06:32,263 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-15 23:06:32,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:06:32 BoogieIcfgContainer [2023-12-15 23:06:32,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:06:32,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:06:32,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:06:32,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:06:32,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:06:31" (1/3) ... [2023-12-15 23:06:32,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a05bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:06:32, skipping insertion in model container [2023-12-15 23:06:32,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:06:31" (2/3) ... [2023-12-15 23:06:32,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a05bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:06:32, skipping insertion in model container [2023-12-15 23:06:32,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:06:32" (3/3) ... [2023-12-15 23:06:32,269 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2023-12-15 23:06:32,294 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:06:32,295 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 23:06:32,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:06:32,335 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;@1d52e305, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:06:32,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 23:06:32,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 82 states have internal predecessors, (127), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-15 23:06:32,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-15 23:06:32,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:32,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:32,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:32,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:32,350 INFO L85 PathProgramCache]: Analyzing trace with hash -999542766, now seen corresponding path program 1 times [2023-12-15 23:06:32,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:32,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257233418] [2023-12-15 23:06:32,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:32,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:32,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 23:06:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 23:06:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:32,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:32,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:32,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257233418] [2023-12-15 23:06:32,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257233418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:32,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:32,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:06:32,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690150212] [2023-12-15 23:06:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:32,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:06:32,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:32,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:06:32,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:06:32,742 INFO L87 Difference]: Start difference. First operand has 104 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 82 states have internal predecessors, (127), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-15 23:06:33,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:33,334 INFO L93 Difference]: Finished difference Result 340 states and 532 transitions. [2023-12-15 23:06:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 23:06:33,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-12-15 23:06:33,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:33,345 INFO L225 Difference]: With dead ends: 340 [2023-12-15 23:06:33,345 INFO L226 Difference]: Without dead ends: 239 [2023-12-15 23:06:33,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:06:33,351 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 451 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:33,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 370 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:06:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-12-15 23:06:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 202. [2023-12-15 23:06:33,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 160 states have internal predecessors, (232), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (32), 28 states have call predecessors, (32), 27 states have call successors, (32) [2023-12-15 23:06:33,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 293 transitions. [2023-12-15 23:06:33,398 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 293 transitions. Word has length 56 [2023-12-15 23:06:33,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:33,398 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 293 transitions. [2023-12-15 23:06:33,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-15 23:06:33,399 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 293 transitions. [2023-12-15 23:06:33,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-15 23:06:33,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:33,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:33,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:06:33,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:33,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:33,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1351431762, now seen corresponding path program 1 times [2023-12-15 23:06:33,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:33,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705350517] [2023-12-15 23:06:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:33,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:33,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:33,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:33,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:33,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 23:06:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 23:06:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:33,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:33,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705350517] [2023-12-15 23:06:33,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705350517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:33,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:33,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:06:33,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96438638] [2023-12-15 23:06:33,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:33,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:06:33,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:33,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:06:33,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:06:33,641 INFO L87 Difference]: Start difference. First operand 202 states and 293 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-15 23:06:34,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:34,258 INFO L93 Difference]: Finished difference Result 563 states and 823 transitions. [2023-12-15 23:06:34,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:06:34,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-12-15 23:06:34,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:34,262 INFO L225 Difference]: With dead ends: 563 [2023-12-15 23:06:34,262 INFO L226 Difference]: Without dead ends: 375 [2023-12-15 23:06:34,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-12-15 23:06:34,265 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 429 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:34,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 615 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:06:34,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-12-15 23:06:34,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 303. [2023-12-15 23:06:34,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 235 states have (on average 1.476595744680851) internal successors, (347), 241 states have internal predecessors, (347), 42 states have call successors, (42), 22 states have call predecessors, (42), 25 states have return successors, (53), 42 states have call predecessors, (53), 40 states have call successors, (53) [2023-12-15 23:06:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 442 transitions. [2023-12-15 23:06:34,320 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 442 transitions. Word has length 56 [2023-12-15 23:06:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:34,321 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 442 transitions. [2023-12-15 23:06:34,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-15 23:06:34,321 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 442 transitions. [2023-12-15 23:06:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-15 23:06:34,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:34,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:34,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:06:34,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:34,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:34,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2050049196, now seen corresponding path program 1 times [2023-12-15 23:06:34,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:34,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668632348] [2023-12-15 23:06:34,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:34,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:34,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:34,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 23:06:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 23:06:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:34,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:34,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668632348] [2023-12-15 23:06:34,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668632348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:34,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:34,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:06:34,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708963543] [2023-12-15 23:06:34,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:34,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:06:34,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:34,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:06:34,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:06:34,457 INFO L87 Difference]: Start difference. First operand 303 states and 442 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2023-12-15 23:06:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:35,358 INFO L93 Difference]: Finished difference Result 1171 states and 1716 transitions. [2023-12-15 23:06:35,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-15 23:06:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 56 [2023-12-15 23:06:35,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:35,362 INFO L225 Difference]: With dead ends: 1171 [2023-12-15 23:06:35,362 INFO L226 Difference]: Without dead ends: 870 [2023-12-15 23:06:35,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2023-12-15 23:06:35,365 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 890 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:35,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 735 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 23:06:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-12-15 23:06:35,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 774. [2023-12-15 23:06:35,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 610 states have (on average 1.4229508196721312) internal successors, (868), 624 states have internal predecessors, (868), 92 states have call successors, (92), 63 states have call predecessors, (92), 71 states have return successors, (117), 88 states have call predecessors, (117), 90 states have call successors, (117) [2023-12-15 23:06:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1077 transitions. [2023-12-15 23:06:35,487 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1077 transitions. Word has length 56 [2023-12-15 23:06:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:35,487 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1077 transitions. [2023-12-15 23:06:35,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2023-12-15 23:06:35,487 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1077 transitions. [2023-12-15 23:06:35,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 23:06:35,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:35,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:35,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:06:35,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:35,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1834223676, now seen corresponding path program 1 times [2023-12-15 23:06:35,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:35,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617709282] [2023-12-15 23:06:35,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:35,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:35,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:35,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:35,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:35,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 23:06:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:35,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:06:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:35,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 23:06:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:35,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:35,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617709282] [2023-12-15 23:06:35,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617709282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:35,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:35,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:06:35,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376402522] [2023-12-15 23:06:35,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:35,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:06:35,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:35,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:06:35,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:06:35,685 INFO L87 Difference]: Start difference. First operand 774 states and 1077 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 23:06:36,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:36,067 INFO L93 Difference]: Finished difference Result 1622 states and 2270 transitions. [2023-12-15 23:06:36,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 23:06:36,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-15 23:06:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:36,071 INFO L225 Difference]: With dead ends: 1622 [2023-12-15 23:06:36,071 INFO L226 Difference]: Without dead ends: 856 [2023-12-15 23:06:36,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 23:06:36,074 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 126 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:36,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 515 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 23:06:36,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-12-15 23:06:36,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 790. [2023-12-15 23:06:36,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 622 states have (on average 1.4083601286173633) internal successors, (876), 636 states have internal predecessors, (876), 92 states have call successors, (92), 63 states have call predecessors, (92), 75 states have return successors, (121), 92 states have call predecessors, (121), 90 states have call successors, (121) [2023-12-15 23:06:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1089 transitions. [2023-12-15 23:06:36,142 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1089 transitions. Word has length 57 [2023-12-15 23:06:36,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:36,142 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1089 transitions. [2023-12-15 23:06:36,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 23:06:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1089 transitions. [2023-12-15 23:06:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-15 23:06:36,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:36,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:36,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:06:36,143 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:36,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1906610234, now seen corresponding path program 1 times [2023-12-15 23:06:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:36,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608763421] [2023-12-15 23:06:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:36,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:36,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:36,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 23:06:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:06:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:36,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 23:06:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:36,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:36,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608763421] [2023-12-15 23:06:36,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608763421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:36,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:36,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:06:36,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488505531] [2023-12-15 23:06:36,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:36,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:06:36,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:36,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:06:36,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:06:36,252 INFO L87 Difference]: Start difference. First operand 790 states and 1089 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-15 23:06:37,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:37,045 INFO L93 Difference]: Finished difference Result 2983 states and 4212 transitions. [2023-12-15 23:06:37,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-15 23:06:37,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 57 [2023-12-15 23:06:37,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:37,050 INFO L225 Difference]: With dead ends: 2983 [2023-12-15 23:06:37,050 INFO L226 Difference]: Without dead ends: 1158 [2023-12-15 23:06:37,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2023-12-15 23:06:37,058 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 767 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:37,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 903 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 23:06:37,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-12-15 23:06:37,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1040. [2023-12-15 23:06:37,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 800 states have (on average 1.35375) internal successors, (1083), 816 states have internal predecessors, (1083), 132 states have call successors, (132), 91 states have call predecessors, (132), 107 states have return successors, (167), 134 states have call predecessors, (167), 130 states have call successors, (167) [2023-12-15 23:06:37,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1382 transitions. [2023-12-15 23:06:37,110 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1382 transitions. Word has length 57 [2023-12-15 23:06:37,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:37,111 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1382 transitions. [2023-12-15 23:06:37,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-15 23:06:37,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1382 transitions. [2023-12-15 23:06:37,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 23:06:37,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:37,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:37,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:06:37,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:37,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:37,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2045842353, now seen corresponding path program 1 times [2023-12-15 23:06:37,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:37,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923109496] [2023-12-15 23:06:37,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:37,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 23:06:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:06:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 23:06:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:37,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:37,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923109496] [2023-12-15 23:06:37,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923109496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:37,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:37,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 23:06:37,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959808883] [2023-12-15 23:06:37,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:37,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 23:06:37,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:37,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 23:06:37,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 23:06:37,205 INFO L87 Difference]: Start difference. First operand 1040 states and 1382 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 23:06:37,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:37,568 INFO L93 Difference]: Finished difference Result 2220 states and 2984 transitions. [2023-12-15 23:06:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 23:06:37,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-15 23:06:37,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:37,573 INFO L225 Difference]: With dead ends: 2220 [2023-12-15 23:06:37,573 INFO L226 Difference]: Without dead ends: 1188 [2023-12-15 23:06:37,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:06:37,575 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 121 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:37,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 480 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:06:37,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-12-15 23:06:37,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1088. [2023-12-15 23:06:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 836 states have (on average 1.3385167464114833) internal successors, (1119), 852 states have internal predecessors, (1119), 132 states have call successors, (132), 91 states have call predecessors, (132), 119 states have return successors, (179), 146 states have call predecessors, (179), 130 states have call successors, (179) [2023-12-15 23:06:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1430 transitions. [2023-12-15 23:06:37,618 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1430 transitions. Word has length 58 [2023-12-15 23:06:37,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:37,618 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1430 transitions. [2023-12-15 23:06:37,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 23:06:37,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1430 transitions. [2023-12-15 23:06:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 23:06:37,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:37,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:37,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:06:37,619 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:37,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2108576333, now seen corresponding path program 1 times [2023-12-15 23:06:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:37,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749841431] [2023-12-15 23:06:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:37,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 23:06:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:06:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 23:06:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:37,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:37,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749841431] [2023-12-15 23:06:37,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749841431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:37,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:37,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 23:06:37,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693465488] [2023-12-15 23:06:37,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:37,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 23:06:37,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:37,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 23:06:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:06:37,702 INFO L87 Difference]: Start difference. First operand 1088 states and 1430 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-15 23:06:38,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:38,221 INFO L93 Difference]: Finished difference Result 2133 states and 2816 transitions. [2023-12-15 23:06:38,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 23:06:38,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-12-15 23:06:38,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:38,226 INFO L225 Difference]: With dead ends: 2133 [2023-12-15 23:06:38,226 INFO L226 Difference]: Without dead ends: 1053 [2023-12-15 23:06:38,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2023-12-15 23:06:38,228 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 440 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:38,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 411 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 23:06:38,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-12-15 23:06:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 882. [2023-12-15 23:06:38,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 681 states have (on average 1.327459618208517) internal successors, (904), 695 states have internal predecessors, (904), 105 states have call successors, (105), 73 states have call predecessors, (105), 95 states have return successors, (143), 114 states have call predecessors, (143), 103 states have call successors, (143) [2023-12-15 23:06:38,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1152 transitions. [2023-12-15 23:06:38,264 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1152 transitions. Word has length 58 [2023-12-15 23:06:38,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:38,265 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1152 transitions. [2023-12-15 23:06:38,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-15 23:06:38,265 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1152 transitions. [2023-12-15 23:06:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-15 23:06:38,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:38,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:38,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:06:38,266 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:38,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1368742513, now seen corresponding path program 1 times [2023-12-15 23:06:38,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:38,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420078191] [2023-12-15 23:06:38,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:38,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 23:06:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:06:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 23:06:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:38,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:38,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420078191] [2023-12-15 23:06:38,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420078191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:38,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:38,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:06:38,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349977405] [2023-12-15 23:06:38,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:38,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:06:38,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:38,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:06:38,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:06:38,323 INFO L87 Difference]: Start difference. First operand 882 states and 1152 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-15 23:06:38,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:38,678 INFO L93 Difference]: Finished difference Result 2696 states and 3572 transitions. [2023-12-15 23:06:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 23:06:38,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-12-15 23:06:38,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:38,684 INFO L225 Difference]: With dead ends: 2696 [2023-12-15 23:06:38,684 INFO L226 Difference]: Without dead ends: 1823 [2023-12-15 23:06:38,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-12-15 23:06:38,686 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 405 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:38,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 271 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 23:06:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2023-12-15 23:06:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1715. [2023-12-15 23:06:38,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1307 states have (on average 1.297628156082632) internal successors, (1696), 1334 states have internal predecessors, (1696), 212 states have call successors, (212), 145 states have call predecessors, (212), 195 states have return successors, (335), 237 states have call predecessors, (335), 210 states have call successors, (335) [2023-12-15 23:06:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2243 transitions. [2023-12-15 23:06:38,754 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2243 transitions. Word has length 58 [2023-12-15 23:06:38,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:38,754 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2243 transitions. [2023-12-15 23:06:38,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-15 23:06:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2243 transitions. [2023-12-15 23:06:38,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-15 23:06:38,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:06:38,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:38,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:06:38,756 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:06:38,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:06:38,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1945360166, now seen corresponding path program 1 times [2023-12-15 23:06:38,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:06:38,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376643855] [2023-12-15 23:06:38,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:06:38,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:06:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 23:06:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 23:06:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:06:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 23:06:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 23:06:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 23:06:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:06:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 23:06:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:06:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376643855] [2023-12-15 23:06:38,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376643855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:06:38,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:06:38,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:06:38,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025666298] [2023-12-15 23:06:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:06:38,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:06:38,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:06:38,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:06:38,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:06:38,809 INFO L87 Difference]: Start difference. First operand 1715 states and 2243 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 23:06:38,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:06:38,999 INFO L93 Difference]: Finished difference Result 3394 states and 4520 transitions. [2023-12-15 23:06:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:06:39,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-12-15 23:06:39,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:06:39,000 INFO L225 Difference]: With dead ends: 3394 [2023-12-15 23:06:39,000 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 23:06:39,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 23:06:39,006 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 244 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:06:39,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 155 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 23:06:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 23:06:39,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 23:06:39,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 23:06:39,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 23:06:39,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-12-15 23:06:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:06:39,007 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 23:06:39,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 23:06:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 23:06:39,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 23:06:39,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 23:06:39,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:06:39,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 23:06:43,549 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (let ((.cse0 (and (= |old(~p_dw_st~0)| ~p_dw_st~0) (= ~c_dr_st~0 |old(~c_dr_st~0)|)))) (and (or (not (= ~c_dr_pc~0 0)) .cse0) (or .cse0 (not (= ~c_dr_pc~0 1))))) [2023-12-15 23:06:43,549 INFO L895 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: (let ((.cse0 (not (= ~c_dr_pc~0 0))) (.cse1 (= |old(~p_dw_st~0)| ~p_dw_st~0)) (.cse2 (= ~c_dr_st~0 |old(~c_dr_st~0)|)) (.cse4 (= activate_threads_~tmp~1 0)) (.cse3 (= ~p_dw_pc~0 1)) (.cse5 (not (= ~q_read_ev~0 2)))) (and (or .cse0 (and .cse1 .cse2) (= ~p_dw_st~0 0)) (or .cse0 .cse2 (not (= |old(~p_dw_st~0)| 0))) (or .cse0 .cse3 (and .cse1 .cse4) .cse5) (or (and .cse1 .cse2 .cse4) .cse3 (not (= ~c_dr_pc~0 1)) .cse5))) [2023-12-15 23:06:43,549 INFO L899 garLoopResultBuilder]: For program point L385-1(line 385) no Hoare annotation was computed. [2023-12-15 23:06:43,549 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2023-12-15 23:06:43,549 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 379 403) no Hoare annotation was computed. [2023-12-15 23:06:43,549 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 379 403) the Hoare annotation is: (let ((.cse0 (and (= |old(~p_dw_st~0)| ~p_dw_st~0) (= ~c_dr_st~0 |old(~c_dr_st~0)|)))) (and (or (not (= ~c_dr_pc~0 0)) .cse0) (or .cse0 (not (= ~c_dr_pc~0 1))))) [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L395-2(lines 379 403) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 391) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 287 306) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L303(lines 290 305) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 287 306) the Hoare annotation is: true [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 300) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 301) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 118) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L116(lines 94 118) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2023-12-15 23:06:43,550 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 91 119) the Hoare annotation is: true [2023-12-15 23:06:43,550 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 105 114) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 91 119) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point L316-1(lines 307 324) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 307 324) the Hoare annotation is: (let ((.cse0 (and (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or (not (= ~c_dr_pc~0 0)) .cse0))) [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point L311-1(lines 310 323) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 307 324) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point L258-1(lines 254 268) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 254 268) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 254 268) the Hoare annotation is: (let ((.cse0 (and (= ~q_ev~0 |old(~q_ev~0)|) (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0) (= ~q_req_up~0 |old(~q_req_up~0)|)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or .cse0 (not (= ~c_dr_pc~0 0))))) [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 35 50) no Hoare annotation was computed. [2023-12-15 23:06:43,551 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 325 342) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L334-1(lines 325 342) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 325 342) the Hoare annotation is: (let ((.cse0 (and (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or (not (= ~c_dr_pc~0 0)) .cse0))) [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L329-1(lines 328 341) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L514-1(line 514) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 410 450) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 356) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L349-2(lines 345 360) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 470) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 246) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point do_write_p_returnLabel#1(lines 145 193) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point start_simulation_returnLabel#1(lines 476 534) no Hoare annotation was computed. [2023-12-15 23:06:43,552 INFO L895 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,552 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2023-12-15 23:06:43,553 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2023-12-15 23:06:43,553 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 206) no Hoare annotation was computed. [2023-12-15 23:06:43,553 INFO L895 garLoopResultBuilder]: At program point L484(line 484) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~p_dw_st~0 0) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,553 INFO L899 garLoopResultBuilder]: For program point L484-1(line 484) no Hoare annotation was computed. [2023-12-15 23:06:43,553 INFO L895 garLoopResultBuilder]: At program point L435(lines 410 450) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,553 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2023-12-15 23:06:43,553 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 159) no Hoare annotation was computed. [2023-12-15 23:06:43,553 INFO L899 garLoopResultBuilder]: For program point L370-1(lines 361 378) no Hoare annotation was computed. [2023-12-15 23:06:43,553 INFO L895 garLoopResultBuilder]: At program point L486(line 486) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,553 INFO L895 garLoopResultBuilder]: At program point L486-1(line 486) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,553 INFO L899 garLoopResultBuilder]: For program point L420(lines 410 450) no Hoare annotation was computed. [2023-12-15 23:06:43,553 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,553 INFO L895 garLoopResultBuilder]: At program point L503-1(line 503) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,554 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: false [2023-12-15 23:06:43,554 INFO L895 garLoopResultBuilder]: At program point L487(line 487) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 272 285) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point L472(lines 461 474) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 446) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 431) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point $Ultimate##36(lines 171 179) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L895 garLoopResultBuilder]: At program point L491-1(lines 491 528) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point do_read_c_returnLabel#1(lines 195 253) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L899 garLoopResultBuilder]: For program point L508(line 508) no Hoare annotation was computed. [2023-12-15 23:06:43,554 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: false [2023-12-15 23:06:43,555 INFO L902 garLoopResultBuilder]: At program point L244-1(lines 210 247) the Hoare annotation is: true [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 269 286) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point eval_returnLabel#1(lines 404 456) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 519) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 510 519) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,555 INFO L895 garLoopResultBuilder]: At program point L164-1(lines 164 187) the Hoare annotation is: (let ((.cse0 (= ~c_dr_pc~0 1)) (.cse2 (= ~q_req_up~0 1)) (.cse1 (not (= ~p_dw_pc~0 1))) (.cse3 (= ~c_dr_pc~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse0) (and .cse2 .cse3) (and .cse1 .cse3))) [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 161) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L895 garLoopResultBuilder]: At program point L463(line 463) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L463-1(line 463) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 207) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 369) no Hoare annotation was computed. [2023-12-15 23:06:43,555 INFO L899 garLoopResultBuilder]: For program point L365-2(lines 364 377) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 65 89) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point L87(lines 65 89) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 62 90) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 82) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 85) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 62 90) the Hoare annotation is: true [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point errorEXIT(lines 15 22) no Hoare annotation was computed. [2023-12-15 23:06:43,556 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 15 22) the Hoare annotation is: true [2023-12-15 23:06:43,556 INFO L899 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-15 23:06:43,558 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:06:43,560 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:06:43,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:06:43 BoogieIcfgContainer [2023-12-15 23:06:43,568 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:06:43,568 INFO L158 Benchmark]: Toolchain (without parser) took 12069.62ms. Allocated memory was 417.3MB in the beginning and 1.1GB in the end (delta: 651.2MB). Free memory was 365.1MB in the beginning and 989.3MB in the end (delta: -624.2MB). Peak memory consumption was 631.5MB. Max. memory is 8.0GB. [2023-12-15 23:06:43,568 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 229.6MB. Free memory is still 179.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:06:43,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.48ms. Allocated memory is still 417.3MB. Free memory was 364.9MB in the beginning and 350.7MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 23:06:43,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.12ms. Allocated memory is still 417.3MB. Free memory was 350.7MB in the beginning and 348.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 23:06:43,569 INFO L158 Benchmark]: Boogie Preprocessor took 47.96ms. Allocated memory is still 417.3MB. Free memory was 348.6MB in the beginning and 346.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 23:06:43,569 INFO L158 Benchmark]: RCFGBuilder took 453.66ms. Allocated memory is still 417.3MB. Free memory was 346.0MB in the beginning and 383.3MB in the end (delta: -37.3MB). Peak memory consumption was 23.3MB. Max. memory is 8.0GB. [2023-12-15 23:06:43,569 INFO L158 Benchmark]: TraceAbstraction took 11302.67ms. Allocated memory was 417.3MB in the beginning and 1.1GB in the end (delta: 651.2MB). Free memory was 382.2MB in the beginning and 989.3MB in the end (delta: -607.1MB). Peak memory consumption was 647.0MB. Max. memory is 8.0GB. [2023-12-15 23:06:43,570 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 229.6MB. Free memory is still 179.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 235.48ms. Allocated memory is still 417.3MB. Free memory was 364.9MB in the beginning and 350.7MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.12ms. Allocated memory is still 417.3MB. Free memory was 350.7MB in the beginning and 348.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.96ms. Allocated memory is still 417.3MB. Free memory was 348.6MB in the beginning and 346.0MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 453.66ms. Allocated memory is still 417.3MB. Free memory was 346.0MB in the beginning and 383.3MB in the end (delta: -37.3MB). Peak memory consumption was 23.3MB. Max. memory is 8.0GB. * TraceAbstraction took 11302.67ms. Allocated memory was 417.3MB in the beginning and 1.1GB in the end (delta: 651.2MB). Free memory was 382.2MB in the beginning and 989.3MB in the end (delta: -607.1MB). Peak memory consumption was 647.0MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3957 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3873 mSDsluCounter, 4455 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3474 mSDsCounter, 977 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5234 IncrementalHoareTripleChecker+Invalid, 6211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 977 mSolverCounterUnsat, 981 mSDtfsCounter, 5234 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1715occurred in iteration=8, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 768 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 1574 PreInvPairs, 2017 NumberOfFragments, 381 HoareAnnotationTreeSize, 1574 FormulaSimplifications, 299571 FormulaSimplificationTreeSizeReduction, 3.1s HoareSimplificationTime, 28 FormulaSimplificationsInter, 14918 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 515 NumberOfCodeBlocks, 515 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 506 ConstructedInterpolants, 0 QuantifiedInterpolants, 1074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: ((c_dr_pc == 1) || (c_dr_pc == 0)) - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((c_dr_pc == 1) || (c_dr_pc == 0)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((c_dr_pc == 1) && !((p_dw_pc == 1))) || ((q_req_up == 1) && (c_dr_pc == 1))) || ((q_req_up == 1) && (c_dr_pc == 0))) || (!((p_dw_pc == 1)) && (c_dr_pc == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-15 23:06:43,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...