/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:08:38,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:08:38,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:08:38,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:08:38,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:08:38,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:08:38,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:08:38,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:08:38,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:08:38,519 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:08:38,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:08:38,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:08:38,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:08:38,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:08:38,521 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:08:38,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:08:38,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:08:38,522 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:08:38,522 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:08:38,522 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:08:38,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:08:38,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:08:38,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:08:38,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:08:38,523 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:08:38,523 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:08:38,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:08:38,524 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:08:38,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:08:38,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:08:38,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:08:38,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:08:38,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:08:38,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:08:38,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:08:38,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:08:38,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:08:38,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:08:38,526 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:08:38,526 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:08:38,527 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:08:38,527 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:08:38,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:08:38,527 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:08:38,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:08:38,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:08:38,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:08:38,738 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:08:38,738 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:08:38,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c [2023-12-16 01:08:39,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:08:39,911 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:08:39,912 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c [2023-12-16 01:08:39,925 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb701f33/41793087e1d14862a9ae0fbb0e361db6/FLAG7a3c4734f [2023-12-16 01:08:40,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb701f33/41793087e1d14862a9ae0fbb0e361db6 [2023-12-16 01:08:40,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:08:40,301 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:08:40,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:08:40,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:08:40,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:08:40,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327caeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40, skipping insertion in model container [2023-12-16 01:08:40,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,353 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:08:40,461 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c[914,927] [2023-12-16 01:08:40,499 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c[7115,7128] [2023-12-16 01:08:40,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:08:40,567 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:08:40,575 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c[914,927] [2023-12-16 01:08:40,586 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c[7115,7128] [2023-12-16 01:08:40,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:08:40,640 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:08:40,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40 WrapperNode [2023-12-16 01:08:40,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:08:40,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:08:40,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:08:40,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:08:40,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,677 INFO L138 Inliner]: procedures = 65, calls = 75, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 708 [2023-12-16 01:08:40,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:08:40,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:08:40,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:08:40,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:08:40,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,718 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,738 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:08:40,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:08:40,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:08:40,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:08:40,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:08:40,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (1/1) ... [2023-12-16 01:08:40,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:08:40,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:08:40,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:08:40,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:08:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:08:40,831 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 01:08:40,831 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 01:08:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 01:08:40,833 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 01:08:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 01:08:40,833 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 01:08:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 01:08:40,833 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 01:08:40,833 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 01:08:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 01:08:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 01:08:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 01:08:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 01:08:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 01:08:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 01:08:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 01:08:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 01:08:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 01:08:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 01:08:40,834 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 01:08:40,834 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 01:08:40,835 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 01:08:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:08:40,835 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 01:08:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 01:08:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 01:08:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 01:08:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:08:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:08:40,836 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 01:08:40,836 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 01:08:40,938 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:08:40,941 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:08:41,497 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:08:41,543 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:08:41,544 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-16 01:08:41,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:08:41 BoogieIcfgContainer [2023-12-16 01:08:41,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:08:41,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:08:41,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:08:41,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:08:41,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:08:40" (1/3) ... [2023-12-16 01:08:41,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d8a63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:08:41, skipping insertion in model container [2023-12-16 01:08:41,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:08:40" (2/3) ... [2023-12-16 01:08:41,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d8a63b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:08:41, skipping insertion in model container [2023-12-16 01:08:41,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:08:41" (3/3) ... [2023-12-16 01:08:41,550 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.06.cil-2.c [2023-12-16 01:08:41,562 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:08:41,563 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 01:08:41,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:08:41,606 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;@7729a40c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:08:41,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 01:08:41,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 301 states, 250 states have (on average 1.684) internal successors, (421), 256 states have internal predecessors, (421), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 01:08:41,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:41,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:41,626 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] [2023-12-16 01:08:41,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:41,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:41,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2141297082, now seen corresponding path program 1 times [2023-12-16 01:08:41,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:41,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782301829] [2023-12-16 01:08:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:41,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:42,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:42,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:42,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782301829] [2023-12-16 01:08:42,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782301829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:42,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:42,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:42,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565087352] [2023-12-16 01:08:42,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:42,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:42,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:42,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:42,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:42,118 INFO L87 Difference]: Start difference. First operand has 301 states, 250 states have (on average 1.684) internal successors, (421), 256 states have internal predecessors, (421), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 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) [2023-12-16 01:08:43,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:43,036 INFO L93 Difference]: Finished difference Result 708 states and 1141 transitions. [2023-12-16 01:08:43,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:08:43,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 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 [2023-12-16 01:08:43,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:43,052 INFO L225 Difference]: With dead ends: 708 [2023-12-16 01:08:43,052 INFO L226 Difference]: Without dead ends: 421 [2023-12-16 01:08:43,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:08:43,061 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 581 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:43,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1352 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:08:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-12-16 01:08:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 384. [2023-12-16 01:08:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 315 states have (on average 1.5396825396825398) internal successors, (485), 321 states have internal predecessors, (485), 45 states have call successors, (45), 21 states have call predecessors, (45), 22 states have return successors, (48), 44 states have call predecessors, (48), 43 states have call successors, (48) [2023-12-16 01:08:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 578 transitions. [2023-12-16 01:08:43,116 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 578 transitions. Word has length 58 [2023-12-16 01:08:43,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:43,117 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 578 transitions. [2023-12-16 01:08:43,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 5 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) [2023-12-16 01:08:43,117 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 578 transitions. [2023-12-16 01:08:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:43,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:43,119 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] [2023-12-16 01:08:43,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:08:43,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:43,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:43,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1050135035, now seen corresponding path program 1 times [2023-12-16 01:08:43,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:43,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047188337] [2023-12-16 01:08:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:43,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:43,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:43,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:43,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:43,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:43,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:43,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:43,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047188337] [2023-12-16 01:08:43,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047188337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:43,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:43,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:43,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786064291] [2023-12-16 01:08:43,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:43,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:43,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:43,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:43,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:43,231 INFO L87 Difference]: Start difference. First operand 384 states and 578 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) [2023-12-16 01:08:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:43,962 INFO L93 Difference]: Finished difference Result 704 states and 1028 transitions. [2023-12-16 01:08:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 01:08:43,965 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 [2023-12-16 01:08:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:43,974 INFO L225 Difference]: With dead ends: 704 [2023-12-16 01:08:43,974 INFO L226 Difference]: Without dead ends: 542 [2023-12-16 01:08:43,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-12-16 01:08:43,976 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1171 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:43,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 1187 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:08:43,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-12-16 01:08:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 472. [2023-12-16 01:08:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 383 states have (on average 1.516971279373368) internal successors, (581), 391 states have internal predecessors, (581), 56 states have call successors, (56), 28 states have call predecessors, (56), 31 states have return successors, (67), 56 states have call predecessors, (67), 54 states have call successors, (67) [2023-12-16 01:08:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 704 transitions. [2023-12-16 01:08:44,032 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 704 transitions. Word has length 58 [2023-12-16 01:08:44,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:44,032 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 704 transitions. [2023-12-16 01:08:44,032 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) [2023-12-16 01:08:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 704 transitions. [2023-12-16 01:08:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 01:08:44,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:44,039 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] [2023-12-16 01:08:44,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:08:44,039 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:44,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:44,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1316559559, now seen corresponding path program 1 times [2023-12-16 01:08:44,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:44,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758469476] [2023-12-16 01:08:44,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:44,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:44,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:44,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:44,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758469476] [2023-12-16 01:08:44,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758469476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:44,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:44,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 01:08:44,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837935048] [2023-12-16 01:08:44,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:44,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:08:44,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:08:44,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:08:44,199 INFO L87 Difference]: Start difference. First operand 472 states and 704 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-12-16 01:08:45,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:45,434 INFO L93 Difference]: Finished difference Result 1710 states and 2456 transitions. [2023-12-16 01:08:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-16 01:08:45,434 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 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 58 [2023-12-16 01:08:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:45,442 INFO L225 Difference]: With dead ends: 1710 [2023-12-16 01:08:45,442 INFO L226 Difference]: Without dead ends: 1448 [2023-12-16 01:08:45,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 01:08:45,445 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 2410 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2424 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:45,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2424 Valid, 1633 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:08:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2023-12-16 01:08:45,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1295. [2023-12-16 01:08:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1023 states have (on average 1.4203323558162269) internal successors, (1453), 1046 states have internal predecessors, (1453), 144 states have call successors, (144), 111 states have call predecessors, (144), 126 states have return successors, (178), 140 states have call predecessors, (178), 142 states have call successors, (178) [2023-12-16 01:08:45,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1775 transitions. [2023-12-16 01:08:45,537 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1775 transitions. Word has length 58 [2023-12-16 01:08:45,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:45,538 INFO L495 AbstractCegarLoop]: Abstraction has 1295 states and 1775 transitions. [2023-12-16 01:08:45,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-12-16 01:08:45,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1775 transitions. [2023-12-16 01:08:45,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:08:45,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:45,540 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] [2023-12-16 01:08:45,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:08:45,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:45,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:45,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1525322444, now seen corresponding path program 1 times [2023-12-16 01:08:45,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:45,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386477587] [2023-12-16 01:08:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:45,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:45,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:45,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:45,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:45,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:45,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:45,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386477587] [2023-12-16 01:08:45,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386477587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:45,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:45,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:08:45,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784944535] [2023-12-16 01:08:45,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:45,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:08:45,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:45,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:08:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:08:45,679 INFO L87 Difference]: Start difference. First operand 1295 states and 1775 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 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) [2023-12-16 01:08:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:46,458 INFO L93 Difference]: Finished difference Result 2530 states and 3431 transitions. [2023-12-16 01:08:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:08:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 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 59 [2023-12-16 01:08:46,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:46,476 INFO L225 Difference]: With dead ends: 2530 [2023-12-16 01:08:46,476 INFO L226 Difference]: Without dead ends: 1451 [2023-12-16 01:08:46,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:08:46,478 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 384 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:46,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1606 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:08:46,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2023-12-16 01:08:46,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1319. [2023-12-16 01:08:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1041 states have (on average 1.4053794428434199) internal successors, (1463), 1064 states have internal predecessors, (1463), 144 states have call successors, (144), 111 states have call predecessors, (144), 132 states have return successors, (184), 146 states have call predecessors, (184), 142 states have call successors, (184) [2023-12-16 01:08:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1791 transitions. [2023-12-16 01:08:46,530 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1791 transitions. Word has length 59 [2023-12-16 01:08:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:46,530 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1791 transitions. [2023-12-16 01:08:46,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 5 states have internal predecessors, (44), 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) [2023-12-16 01:08:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1791 transitions. [2023-12-16 01:08:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:08:46,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:46,531 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] [2023-12-16 01:08:46,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:08:46,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:46,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash 397905590, now seen corresponding path program 1 times [2023-12-16 01:08:46,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:46,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055269931] [2023-12-16 01:08:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:46,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:46,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:46,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:46,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:46,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:46,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:46,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055269931] [2023-12-16 01:08:46,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055269931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:46,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:46,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:46,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006972013] [2023-12-16 01:08:46,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:46,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:46,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:46,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:46,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:46,635 INFO L87 Difference]: Start difference. First operand 1319 states and 1791 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 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) [2023-12-16 01:08:47,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:47,451 INFO L93 Difference]: Finished difference Result 2567 states and 3392 transitions. [2023-12-16 01:08:47,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 01:08:47,452 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 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 59 [2023-12-16 01:08:47,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:47,457 INFO L225 Difference]: With dead ends: 2567 [2023-12-16 01:08:47,457 INFO L226 Difference]: Without dead ends: 1671 [2023-12-16 01:08:47,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-16 01:08:47,460 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 905 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:47,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 1168 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:08:47,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2023-12-16 01:08:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1264. [2023-12-16 01:08:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1002 states have (on average 1.403193612774451) internal successors, (1406), 1020 states have internal predecessors, (1406), 138 states have call successors, (138), 106 states have call predecessors, (138), 122 states have return successors, (169), 139 states have call predecessors, (169), 136 states have call successors, (169) [2023-12-16 01:08:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1713 transitions. [2023-12-16 01:08:47,515 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1713 transitions. Word has length 59 [2023-12-16 01:08:47,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:47,515 INFO L495 AbstractCegarLoop]: Abstraction has 1264 states and 1713 transitions. [2023-12-16 01:08:47,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 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) [2023-12-16 01:08:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1713 transitions. [2023-12-16 01:08:47,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:08:47,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:47,516 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] [2023-12-16 01:08:47,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:08:47,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:47,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash 616760308, now seen corresponding path program 1 times [2023-12-16 01:08:47,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:47,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107891072] [2023-12-16 01:08:47,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:47,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:47,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:47,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107891072] [2023-12-16 01:08:47,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107891072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:47,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:47,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:08:47,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603840914] [2023-12-16 01:08:47,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:47,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:08:47,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:47,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:08:47,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:08:47,579 INFO L87 Difference]: Start difference. First operand 1264 states and 1713 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 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) [2023-12-16 01:08:48,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:48,163 INFO L93 Difference]: Finished difference Result 3436 states and 4549 transitions. [2023-12-16 01:08:48,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 01:08:48,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 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 59 [2023-12-16 01:08:48,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:48,173 INFO L225 Difference]: With dead ends: 3436 [2023-12-16 01:08:48,173 INFO L226 Difference]: Without dead ends: 2389 [2023-12-16 01:08:48,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:08:48,177 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1092 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:48,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 800 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:08:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2023-12-16 01:08:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2273. [2023-12-16 01:08:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1752 states have (on average 1.3373287671232876) internal successors, (2343), 1794 states have internal predecessors, (2343), 268 states have call successors, (268), 205 states have call predecessors, (268), 251 states have return successors, (381), 276 states have call predecessors, (381), 266 states have call successors, (381) [2023-12-16 01:08:48,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 2992 transitions. [2023-12-16 01:08:48,275 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 2992 transitions. Word has length 59 [2023-12-16 01:08:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:48,275 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 2992 transitions. [2023-12-16 01:08:48,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 4 states have internal predecessors, (44), 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) [2023-12-16 01:08:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 2992 transitions. [2023-12-16 01:08:48,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 01:08:48,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:48,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:48,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:08:48,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:48,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1672301310, now seen corresponding path program 1 times [2023-12-16 01:08:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320287436] [2023-12-16 01:08:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:48,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:48,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320287436] [2023-12-16 01:08:48,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320287436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:48,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:48,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:08:48,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786441756] [2023-12-16 01:08:48,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:48,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:08:48,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:48,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:08:48,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:08:48,357 INFO L87 Difference]: Start difference. First operand 2273 states and 2992 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 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) [2023-12-16 01:08:48,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:48,911 INFO L93 Difference]: Finished difference Result 5415 states and 7048 transitions. [2023-12-16 01:08:48,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:08:48,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 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 60 [2023-12-16 01:08:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:48,923 INFO L225 Difference]: With dead ends: 5415 [2023-12-16 01:08:48,923 INFO L226 Difference]: Without dead ends: 3364 [2023-12-16 01:08:48,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:08:48,928 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 549 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:48,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 955 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:08:48,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2023-12-16 01:08:49,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 3043. [2023-12-16 01:08:49,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 2333 states have (on average 1.3206172310330047) internal successors, (3081), 2382 states have internal predecessors, (3081), 364 states have call successors, (364), 285 states have call predecessors, (364), 344 states have return successors, (500), 378 states have call predecessors, (500), 362 states have call successors, (500) [2023-12-16 01:08:49,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 3945 transitions. [2023-12-16 01:08:49,082 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 3945 transitions. Word has length 60 [2023-12-16 01:08:49,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:49,082 INFO L495 AbstractCegarLoop]: Abstraction has 3043 states and 3945 transitions. [2023-12-16 01:08:49,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 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) [2023-12-16 01:08:49,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 3945 transitions. [2023-12-16 01:08:49,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 01:08:49,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:49,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:49,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:08:49,084 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:49,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:49,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1926597759, now seen corresponding path program 1 times [2023-12-16 01:08:49,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:49,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450645330] [2023-12-16 01:08:49,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:49,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:49,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:49,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450645330] [2023-12-16 01:08:49,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450645330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:49,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:49,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:08:49,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949747179] [2023-12-16 01:08:49,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:49,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:08:49,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:49,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:08:49,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:08:49,129 INFO L87 Difference]: Start difference. First operand 3043 states and 3945 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-16 01:08:49,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:49,680 INFO L93 Difference]: Finished difference Result 6733 states and 8648 transitions. [2023-12-16 01:08:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:08:49,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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 66 [2023-12-16 01:08:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:49,695 INFO L225 Difference]: With dead ends: 6733 [2023-12-16 01:08:49,695 INFO L226 Difference]: Without dead ends: 3910 [2023-12-16 01:08:49,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:08:49,701 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 844 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:49,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 844 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:08:49,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2023-12-16 01:08:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3568. [2023-12-16 01:08:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3568 states, 2738 states have (on average 1.3130021913805698) internal successors, (3595), 2791 states have internal predecessors, (3595), 423 states have call successors, (423), 335 states have call predecessors, (423), 405 states have return successors, (582), 444 states have call predecessors, (582), 421 states have call successors, (582) [2023-12-16 01:08:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3568 states to 3568 states and 4600 transitions. [2023-12-16 01:08:49,885 INFO L78 Accepts]: Start accepts. Automaton has 3568 states and 4600 transitions. Word has length 66 [2023-12-16 01:08:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:49,886 INFO L495 AbstractCegarLoop]: Abstraction has 3568 states and 4600 transitions. [2023-12-16 01:08:49,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-16 01:08:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3568 states and 4600 transitions. [2023-12-16 01:08:49,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 01:08:49,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:49,887 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:49,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:08:49,887 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:49,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:49,887 INFO L85 PathProgramCache]: Analyzing trace with hash -111484654, now seen corresponding path program 1 times [2023-12-16 01:08:49,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:49,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968320996] [2023-12-16 01:08:49,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:49,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:49,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:49,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968320996] [2023-12-16 01:08:49,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968320996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:49,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:49,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:08:49,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979677622] [2023-12-16 01:08:49,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:49,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:08:49,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:49,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:08:49,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:08:49,945 INFO L87 Difference]: Start difference. First operand 3568 states and 4600 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:08:50,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:50,576 INFO L93 Difference]: Finished difference Result 4676 states and 5982 transitions. [2023-12-16 01:08:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 01:08:50,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2023-12-16 01:08:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:50,592 INFO L225 Difference]: With dead ends: 4676 [2023-12-16 01:08:50,592 INFO L226 Difference]: Without dead ends: 4673 [2023-12-16 01:08:50,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-12-16 01:08:50,595 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1485 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:50,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 636 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:08:50,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4673 states. [2023-12-16 01:08:50,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4673 to 3995. [2023-12-16 01:08:50,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3995 states, 3055 states have (on average 1.3031096563011457) internal successors, (3981), 3112 states have internal predecessors, (3981), 476 states have call successors, (476), 379 states have call predecessors, (476), 462 states have return successors, (664), 506 states have call predecessors, (664), 475 states have call successors, (664) [2023-12-16 01:08:50,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3995 states to 3995 states and 5121 transitions. [2023-12-16 01:08:50,829 INFO L78 Accepts]: Start accepts. Automaton has 3995 states and 5121 transitions. Word has length 67 [2023-12-16 01:08:50,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:50,830 INFO L495 AbstractCegarLoop]: Abstraction has 3995 states and 5121 transitions. [2023-12-16 01:08:50,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:08:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3995 states and 5121 transitions. [2023-12-16 01:08:50,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 01:08:50,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:50,834 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:50,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:08:50,834 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:50,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:50,835 INFO L85 PathProgramCache]: Analyzing trace with hash 837942763, now seen corresponding path program 1 times [2023-12-16 01:08:50,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:50,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97375575] [2023-12-16 01:08:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:50,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:50,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97375575] [2023-12-16 01:08:50,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97375575] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:08:50,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139669353] [2023-12-16 01:08:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:50,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:08:50,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:08:50,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:08:50,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:08:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:51,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 01:08:51,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:08:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:51,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:08:51,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:51,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139669353] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 01:08:51,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 01:08:51,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2023-12-16 01:08:51,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769391062] [2023-12-16 01:08:51,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 01:08:51,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:08:51,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:51,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:08:51,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:08:51,317 INFO L87 Difference]: Start difference. First operand 3995 states and 5121 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 01:08:52,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:52,783 INFO L93 Difference]: Finished difference Result 8202 states and 10395 transitions. [2023-12-16 01:08:52,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-16 01:08:52,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 68 [2023-12-16 01:08:52,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:52,820 INFO L225 Difference]: With dead ends: 8202 [2023-12-16 01:08:52,820 INFO L226 Difference]: Without dead ends: 8199 [2023-12-16 01:08:52,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2023-12-16 01:08:52,824 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1610 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:52,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1670 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:08:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8199 states. [2023-12-16 01:08:53,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8199 to 7174. [2023-12-16 01:08:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7174 states, 5467 states have (on average 1.2899213462593744) internal successors, (7052), 5568 states have internal predecessors, (7052), 855 states have call successors, (855), 693 states have call predecessors, (855), 850 states have return successors, (1201), 915 states have call predecessors, (1201), 854 states have call successors, (1201) [2023-12-16 01:08:53,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 9108 transitions. [2023-12-16 01:08:53,257 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 9108 transitions. Word has length 68 [2023-12-16 01:08:53,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:53,257 INFO L495 AbstractCegarLoop]: Abstraction has 7174 states and 9108 transitions. [2023-12-16 01:08:53,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 01:08:53,258 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 9108 transitions. [2023-12-16 01:08:53,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 01:08:53,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:53,259 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:53,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 01:08:53,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 01:08:53,465 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:53,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:53,466 INFO L85 PathProgramCache]: Analyzing trace with hash -388625966, now seen corresponding path program 2 times [2023-12-16 01:08:53,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:53,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242534521] [2023-12-16 01:08:53,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:53,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:53,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:53,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:53,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:53,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:53,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:53,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242534521] [2023-12-16 01:08:53,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242534521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:53,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:53,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:08:53,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904125152] [2023-12-16 01:08:53,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:53,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:08:53,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:53,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:08:53,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:08:53,527 INFO L87 Difference]: Start difference. First operand 7174 states and 9108 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:08:54,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:54,159 INFO L93 Difference]: Finished difference Result 9684 states and 12320 transitions. [2023-12-16 01:08:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 01:08:54,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2023-12-16 01:08:54,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:54,171 INFO L225 Difference]: With dead ends: 9684 [2023-12-16 01:08:54,171 INFO L226 Difference]: Without dead ends: 3979 [2023-12-16 01:08:54,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:08:54,181 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 968 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:54,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 691 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:08:54,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2023-12-16 01:08:54,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 2934. [2023-12-16 01:08:54,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2259 states have (on average 1.288623284639221) internal successors, (2911), 2294 states have internal predecessors, (2911), 348 states have call successors, (348), 275 states have call predecessors, (348), 325 states have return successors, (460), 367 states have call predecessors, (460), 347 states have call successors, (460) [2023-12-16 01:08:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 3719 transitions. [2023-12-16 01:08:54,368 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 3719 transitions. Word has length 71 [2023-12-16 01:08:54,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:54,369 INFO L495 AbstractCegarLoop]: Abstraction has 2934 states and 3719 transitions. [2023-12-16 01:08:54,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 01:08:54,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 3719 transitions. [2023-12-16 01:08:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 01:08:54,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:54,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:54,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:08:54,372 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:54,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash -344254603, now seen corresponding path program 1 times [2023-12-16 01:08:54,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:54,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058415401] [2023-12-16 01:08:54,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:54,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 01:08:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:08:54,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:54,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058415401] [2023-12-16 01:08:54,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058415401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:54,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:54,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 01:08:54,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096653617] [2023-12-16 01:08:54,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:54,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 01:08:54,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:54,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 01:08:54,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:08:54,459 INFO L87 Difference]: Start difference. First operand 2934 states and 3719 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:08:55,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:55,535 INFO L93 Difference]: Finished difference Result 8536 states and 10729 transitions. [2023-12-16 01:08:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 01:08:55,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2023-12-16 01:08:55,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:55,559 INFO L225 Difference]: With dead ends: 8536 [2023-12-16 01:08:55,559 INFO L226 Difference]: Without dead ends: 5023 [2023-12-16 01:08:55,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2023-12-16 01:08:55,566 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 845 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:55,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1444 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:08:55,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5023 states. [2023-12-16 01:08:55,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5023 to 4676. [2023-12-16 01:08:55,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4676 states, 3546 states have (on average 1.2552171460800903) internal successors, (4451), 3612 states have internal predecessors, (4451), 566 states have call successors, (566), 447 states have call predecessors, (566), 562 states have return successors, (854), 619 states have call predecessors, (854), 565 states have call successors, (854) [2023-12-16 01:08:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4676 states to 4676 states and 5871 transitions. [2023-12-16 01:08:55,849 INFO L78 Accepts]: Start accepts. Automaton has 4676 states and 5871 transitions. Word has length 76 [2023-12-16 01:08:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:55,849 INFO L495 AbstractCegarLoop]: Abstraction has 4676 states and 5871 transitions. [2023-12-16 01:08:55,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:08:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 4676 states and 5871 transitions. [2023-12-16 01:08:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 01:08:55,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:55,851 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:55,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:08:55,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:55,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:55,852 INFO L85 PathProgramCache]: Analyzing trace with hash -347973711, now seen corresponding path program 1 times [2023-12-16 01:08:55,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:55,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021773588] [2023-12-16 01:08:55,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:55,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 01:08:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-16 01:08:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-16 01:08:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 01:08:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 01:08:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:08:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 01:08:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:55,941 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:08:55,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:55,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021773588] [2023-12-16 01:08:55,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021773588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:55,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:55,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 01:08:55,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671416564] [2023-12-16 01:08:55,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:55,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 01:08:55,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:55,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 01:08:55,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:08:55,943 INFO L87 Difference]: Start difference. First operand 4676 states and 5871 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:08:57,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:57,011 INFO L93 Difference]: Finished difference Result 8704 states and 10806 transitions. [2023-12-16 01:08:57,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 01:08:57,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2023-12-16 01:08:57,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:57,023 INFO L225 Difference]: With dead ends: 8704 [2023-12-16 01:08:57,023 INFO L226 Difference]: Without dead ends: 4771 [2023-12-16 01:08:57,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2023-12-16 01:08:57,030 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1698 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:57,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1731 Valid, 1057 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:08:57,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4771 states. [2023-12-16 01:08:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4771 to 4405. [2023-12-16 01:08:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4405 states, 3323 states have (on average 1.2317183268131207) internal successors, (4093), 3391 states have internal predecessors, (4093), 536 states have call successors, (536), 429 states have call predecessors, (536), 544 states have return successors, (745), 587 states have call predecessors, (745), 535 states have call successors, (745) [2023-12-16 01:08:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4405 states to 4405 states and 5374 transitions. [2023-12-16 01:08:57,274 INFO L78 Accepts]: Start accepts. Automaton has 4405 states and 5374 transitions. Word has length 86 [2023-12-16 01:08:57,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:57,274 INFO L495 AbstractCegarLoop]: Abstraction has 4405 states and 5374 transitions. [2023-12-16 01:08:57,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-16 01:08:57,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4405 states and 5374 transitions. [2023-12-16 01:08:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:08:57,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:57,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:57,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:08:57,276 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:57,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash -557399227, now seen corresponding path program 1 times [2023-12-16 01:08:57,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:57,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690634390] [2023-12-16 01:08:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:57,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:08:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:08:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:08:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:08:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:57,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:57,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690634390] [2023-12-16 01:08:57,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690634390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:57,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:57,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 01:08:57,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940139079] [2023-12-16 01:08:57,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:57,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 01:08:57,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:57,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 01:08:57,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:08:57,352 INFO L87 Difference]: Start difference. First operand 4405 states and 5374 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:08:58,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:08:58,438 INFO L93 Difference]: Finished difference Result 4673 states and 5811 transitions. [2023-12-16 01:08:58,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:08:58,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:08:58,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:08:58,449 INFO L225 Difference]: With dead ends: 4673 [2023-12-16 01:08:58,449 INFO L226 Difference]: Without dead ends: 4475 [2023-12-16 01:08:58,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:08:58,452 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 643 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:08:58,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 584 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:08:58,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2023-12-16 01:08:58,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4405. [2023-12-16 01:08:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4405 states, 3323 states have (on average 1.2314173939211557) internal successors, (4092), 3391 states have internal predecessors, (4092), 536 states have call successors, (536), 429 states have call predecessors, (536), 544 states have return successors, (745), 587 states have call predecessors, (745), 535 states have call successors, (745) [2023-12-16 01:08:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4405 states to 4405 states and 5373 transitions. [2023-12-16 01:08:58,793 INFO L78 Accepts]: Start accepts. Automaton has 4405 states and 5373 transitions. Word has length 101 [2023-12-16 01:08:58,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:08:58,793 INFO L495 AbstractCegarLoop]: Abstraction has 4405 states and 5373 transitions. [2023-12-16 01:08:58,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:08:58,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4405 states and 5373 transitions. [2023-12-16 01:08:58,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:08:58,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:08:58,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:08:58,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:08:58,796 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:08:58,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:08:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash 213334339, now seen corresponding path program 1 times [2023-12-16 01:08:58,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:08:58,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893198638] [2023-12-16 01:08:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:08:58,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:08:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:08:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:08:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:08:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:08:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:08:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:08:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:08:58,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:08:58,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893198638] [2023-12-16 01:08:58,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893198638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:08:58,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:08:58,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:08:58,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453377901] [2023-12-16 01:08:58,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:08:58,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:08:58,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:08:58,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:08:58,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:08:58,922 INFO L87 Difference]: Start difference. First operand 4405 states and 5373 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:01,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:01,076 INFO L93 Difference]: Finished difference Result 4957 states and 6284 transitions. [2023-12-16 01:09:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:01,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:01,086 INFO L225 Difference]: With dead ends: 4957 [2023-12-16 01:09:01,086 INFO L226 Difference]: Without dead ends: 4761 [2023-12-16 01:09:01,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:09:01,089 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1009 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:01,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1417 Invalid, 2397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 01:09:01,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2023-12-16 01:09:01,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 4612. [2023-12-16 01:09:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4612 states, 3505 states have (on average 1.2516405135520685) internal successors, (4387), 3575 states have internal predecessors, (4387), 553 states have call successors, (553), 435 states have call predecessors, (553), 552 states have return successors, (769), 605 states have call predecessors, (769), 552 states have call successors, (769) [2023-12-16 01:09:01,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4612 states to 4612 states and 5709 transitions. [2023-12-16 01:09:01,441 INFO L78 Accepts]: Start accepts. Automaton has 4612 states and 5709 transitions. Word has length 101 [2023-12-16 01:09:01,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:01,441 INFO L495 AbstractCegarLoop]: Abstraction has 4612 states and 5709 transitions. [2023-12-16 01:09:01,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:01,442 INFO L276 IsEmpty]: Start isEmpty. Operand 4612 states and 5709 transitions. [2023-12-16 01:09:01,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:01,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:01,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:01,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:09:01,444 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:01,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:01,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2089817157, now seen corresponding path program 1 times [2023-12-16 01:09:01,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:01,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141812763] [2023-12-16 01:09:01,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:01,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:01,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:01,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141812763] [2023-12-16 01:09:01,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141812763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:01,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:01,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:01,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87824085] [2023-12-16 01:09:01,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:01,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:01,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:01,558 INFO L87 Difference]: Start difference. First operand 4612 states and 5709 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:03,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:03,570 INFO L93 Difference]: Finished difference Result 5656 states and 7416 transitions. [2023-12-16 01:09:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:03,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:03,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:03,584 INFO L225 Difference]: With dead ends: 5656 [2023-12-16 01:09:03,584 INFO L226 Difference]: Without dead ends: 5255 [2023-12-16 01:09:03,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:09:03,588 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 993 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:03,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1417 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 01:09:03,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5255 states. [2023-12-16 01:09:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5255 to 4990. [2023-12-16 01:09:03,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4990 states, 3839 states have (on average 1.2810627767647824) internal successors, (4918), 3911 states have internal predecessors, (4918), 583 states have call successors, (583), 447 states have call predecessors, (583), 566 states have return successors, (809), 637 states have call predecessors, (809), 582 states have call successors, (809) [2023-12-16 01:09:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4990 states to 4990 states and 6310 transitions. [2023-12-16 01:09:04,002 INFO L78 Accepts]: Start accepts. Automaton has 4990 states and 6310 transitions. Word has length 101 [2023-12-16 01:09:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:04,002 INFO L495 AbstractCegarLoop]: Abstraction has 4990 states and 6310 transitions. [2023-12-16 01:09:04,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4990 states and 6310 transitions. [2023-12-16 01:09:04,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:04,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:04,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:04,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:09:04,005 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:04,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash 210686211, now seen corresponding path program 1 times [2023-12-16 01:09:04,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:04,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460173509] [2023-12-16 01:09:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:04,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:04,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:04,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460173509] [2023-12-16 01:09:04,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460173509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:04,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:04,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:04,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417489732] [2023-12-16 01:09:04,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:04,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:04,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:04,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:04,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:04,132 INFO L87 Difference]: Start difference. First operand 4990 states and 6310 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:05,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:05,431 INFO L93 Difference]: Finished difference Result 6041 states and 8042 transitions. [2023-12-16 01:09:05,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:05,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:05,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:05,443 INFO L225 Difference]: With dead ends: 6041 [2023-12-16 01:09:05,443 INFO L226 Difference]: Without dead ends: 5260 [2023-12-16 01:09:05,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:05,446 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 802 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:05,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 833 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 01:09:05,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2023-12-16 01:09:05,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 4990. [2023-12-16 01:09:05,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4990 states, 3839 states have (on average 1.2797603542589215) internal successors, (4913), 3911 states have internal predecessors, (4913), 583 states have call successors, (583), 447 states have call predecessors, (583), 566 states have return successors, (809), 637 states have call predecessors, (809), 582 states have call successors, (809) [2023-12-16 01:09:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4990 states to 4990 states and 6305 transitions. [2023-12-16 01:09:05,868 INFO L78 Accepts]: Start accepts. Automaton has 4990 states and 6305 transitions. Word has length 101 [2023-12-16 01:09:05,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:05,868 INFO L495 AbstractCegarLoop]: Abstraction has 4990 states and 6305 transitions. [2023-12-16 01:09:05,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:05,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4990 states and 6305 transitions. [2023-12-16 01:09:05,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:05,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:05,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:05,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 01:09:05,871 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:05,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:05,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1535542405, now seen corresponding path program 1 times [2023-12-16 01:09:05,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:05,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215688146] [2023-12-16 01:09:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:05,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:05,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:05,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215688146] [2023-12-16 01:09:05,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215688146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:05,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:05,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:05,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484378064] [2023-12-16 01:09:05,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:05,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:05,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:05,989 INFO L87 Difference]: Start difference. First operand 4990 states and 6305 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:07,156 INFO L93 Difference]: Finished difference Result 6037 states and 8021 transitions. [2023-12-16 01:09:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:07,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:07,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:07,165 INFO L225 Difference]: With dead ends: 6037 [2023-12-16 01:09:07,166 INFO L226 Difference]: Without dead ends: 5256 [2023-12-16 01:09:07,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:07,169 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 800 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:07,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 833 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5256 states. [2023-12-16 01:09:07,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5256 to 4990. [2023-12-16 01:09:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4990 states, 3839 states have (on average 1.2784579317530607) internal successors, (4908), 3911 states have internal predecessors, (4908), 583 states have call successors, (583), 447 states have call predecessors, (583), 566 states have return successors, (809), 637 states have call predecessors, (809), 582 states have call successors, (809) [2023-12-16 01:09:07,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4990 states to 4990 states and 6300 transitions. [2023-12-16 01:09:07,548 INFO L78 Accepts]: Start accepts. Automaton has 4990 states and 6300 transitions. Word has length 101 [2023-12-16 01:09:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:07,548 INFO L495 AbstractCegarLoop]: Abstraction has 4990 states and 6300 transitions. [2023-12-16 01:09:07,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:07,548 INFO L276 IsEmpty]: Start isEmpty. Operand 4990 states and 6300 transitions. [2023-12-16 01:09:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:07,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:07,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:07,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:09:07,551 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:07,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:07,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1192666941, now seen corresponding path program 1 times [2023-12-16 01:09:07,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:07,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321088699] [2023-12-16 01:09:07,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:07,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:07,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:07,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321088699] [2023-12-16 01:09:07,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321088699] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:07,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:07,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:07,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047347228] [2023-12-16 01:09:07,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:07,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:07,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:07,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:07,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:07,646 INFO L87 Difference]: Start difference. First operand 4990 states and 6300 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:08,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:08,843 INFO L93 Difference]: Finished difference Result 6032 states and 7998 transitions. [2023-12-16 01:09:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:08,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:08,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:08,855 INFO L225 Difference]: With dead ends: 6032 [2023-12-16 01:09:08,855 INFO L226 Difference]: Without dead ends: 5251 [2023-12-16 01:09:08,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:08,860 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 798 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:08,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 833 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:08,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2023-12-16 01:09:09,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 4990. [2023-12-16 01:09:09,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4990 states, 3839 states have (on average 1.2771555092471998) internal successors, (4903), 3911 states have internal predecessors, (4903), 583 states have call successors, (583), 447 states have call predecessors, (583), 566 states have return successors, (809), 637 states have call predecessors, (809), 582 states have call successors, (809) [2023-12-16 01:09:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4990 states to 4990 states and 6295 transitions. [2023-12-16 01:09:09,276 INFO L78 Accepts]: Start accepts. Automaton has 4990 states and 6295 transitions. Word has length 101 [2023-12-16 01:09:09,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:09,276 INFO L495 AbstractCegarLoop]: Abstraction has 4990 states and 6295 transitions. [2023-12-16 01:09:09,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4990 states and 6295 transitions. [2023-12-16 01:09:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:09,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:09,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:09,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:09:09,279 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:09,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:09,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2044462277, now seen corresponding path program 1 times [2023-12-16 01:09:09,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:09,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53866453] [2023-12-16 01:09:09,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:09,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:09,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:09,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:09,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:09,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:09,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:09,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:09,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53866453] [2023-12-16 01:09:09,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53866453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:09,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:09,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:09,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117799038] [2023-12-16 01:09:09,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:09,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:09,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:09,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:09,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:09,397 INFO L87 Difference]: Start difference. First operand 4990 states and 6295 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:11,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:11,477 INFO L93 Difference]: Finished difference Result 7003 states and 9527 transitions. [2023-12-16 01:09:11,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:09:11,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:11,491 INFO L225 Difference]: With dead ends: 7003 [2023-12-16 01:09:11,491 INFO L226 Difference]: Without dead ends: 6224 [2023-12-16 01:09:11,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:09:11,496 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 984 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:11,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1417 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 01:09:11,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2023-12-16 01:09:11,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 5757. [2023-12-16 01:09:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 4518 states have (on average 1.3200531208499335) internal successors, (5964), 4594 states have internal predecessors, (5964), 643 states have call successors, (643), 471 states have call predecessors, (643), 594 states have return successors, (895), 701 states have call predecessors, (895), 642 states have call successors, (895) [2023-12-16 01:09:11,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 7502 transitions. [2023-12-16 01:09:11,984 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 7502 transitions. Word has length 101 [2023-12-16 01:09:11,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:11,984 INFO L495 AbstractCegarLoop]: Abstraction has 5757 states and 7502 transitions. [2023-12-16 01:09:11,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:11,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 7502 transitions. [2023-12-16 01:09:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:11,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:11,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:11,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 01:09:11,988 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:11,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:11,988 INFO L85 PathProgramCache]: Analyzing trace with hash 901959811, now seen corresponding path program 1 times [2023-12-16 01:09:11,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:11,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232205900] [2023-12-16 01:09:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:11,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:12,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:12,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232205900] [2023-12-16 01:09:12,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232205900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:12,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:12,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:12,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155273755] [2023-12-16 01:09:12,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:12,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:12,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:12,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:12,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:12,085 INFO L87 Difference]: Start difference. First operand 5757 states and 7502 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:14,324 INFO L93 Difference]: Finished difference Result 10362 states and 14892 transitions. [2023-12-16 01:09:14,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:14,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:14,345 INFO L225 Difference]: With dead ends: 10362 [2023-12-16 01:09:14,345 INFO L226 Difference]: Without dead ends: 8816 [2023-12-16 01:09:14,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:14,351 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1046 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:14,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1410 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 01:09:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8816 states. [2023-12-16 01:09:14,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8816 to 7282. [2023-12-16 01:09:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7282 states, 5875 states have (on average 1.3766808510638298) internal successors, (8088), 5959 states have internal predecessors, (8088), 755 states have call successors, (755), 519 states have call predecessors, (755), 650 states have return successors, (1077), 821 states have call predecessors, (1077), 754 states have call successors, (1077) [2023-12-16 01:09:14,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7282 states to 7282 states and 9920 transitions. [2023-12-16 01:09:14,888 INFO L78 Accepts]: Start accepts. Automaton has 7282 states and 9920 transitions. Word has length 101 [2023-12-16 01:09:14,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:14,888 INFO L495 AbstractCegarLoop]: Abstraction has 7282 states and 9920 transitions. [2023-12-16 01:09:14,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:14,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7282 states and 9920 transitions. [2023-12-16 01:09:14,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:14,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:14,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:14,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 01:09:14,893 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:14,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:14,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1142199557, now seen corresponding path program 1 times [2023-12-16 01:09:14,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:14,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457754900] [2023-12-16 01:09:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:14,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:14,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:14,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457754900] [2023-12-16 01:09:14,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457754900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:14,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:14,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:14,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63131434] [2023-12-16 01:09:14,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:14,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:14,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:14,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:14,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:14,986 INFO L87 Difference]: Start difference. First operand 7282 states and 9920 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:16,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:16,307 INFO L93 Difference]: Finished difference Result 11250 states and 16363 transitions. [2023-12-16 01:09:16,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:16,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:16,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:16,325 INFO L225 Difference]: With dead ends: 11250 [2023-12-16 01:09:16,325 INFO L226 Difference]: Without dead ends: 8177 [2023-12-16 01:09:16,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:16,333 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 818 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:16,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 831 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:16,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8177 states. [2023-12-16 01:09:16,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8177 to 7282. [2023-12-16 01:09:16,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7282 states, 5875 states have (on average 1.3737872340425532) internal successors, (8071), 5959 states have internal predecessors, (8071), 755 states have call successors, (755), 519 states have call predecessors, (755), 650 states have return successors, (1077), 821 states have call predecessors, (1077), 754 states have call successors, (1077) [2023-12-16 01:09:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7282 states to 7282 states and 9903 transitions. [2023-12-16 01:09:16,901 INFO L78 Accepts]: Start accepts. Automaton has 7282 states and 9903 transitions. Word has length 101 [2023-12-16 01:09:16,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:16,901 INFO L495 AbstractCegarLoop]: Abstraction has 7282 states and 9903 transitions. [2023-12-16 01:09:16,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:16,901 INFO L276 IsEmpty]: Start isEmpty. Operand 7282 states and 9903 transitions. [2023-12-16 01:09:16,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:16,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:16,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:16,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 01:09:16,905 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:16,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:16,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1169265159, now seen corresponding path program 1 times [2023-12-16 01:09:16,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:16,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479954001] [2023-12-16 01:09:16,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:16,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:16,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:16,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:17,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:17,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:17,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479954001] [2023-12-16 01:09:17,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479954001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:17,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:17,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:17,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255871429] [2023-12-16 01:09:17,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:17,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:17,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:17,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:17,029 INFO L87 Difference]: Start difference. First operand 7282 states and 9903 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:19,277 INFO L93 Difference]: Finished difference Result 15817 states and 23600 transitions. [2023-12-16 01:09:19,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:19,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:19,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:19,309 INFO L225 Difference]: With dead ends: 15817 [2023-12-16 01:09:19,310 INFO L226 Difference]: Without dead ends: 12746 [2023-12-16 01:09:19,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:19,322 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1118 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 2213 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:19,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 1411 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2213 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 01:09:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12746 states. [2023-12-16 01:09:20,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12746 to 10363. [2023-12-16 01:09:20,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10363 states, 8628 states have (on average 1.4331247102457116) internal successors, (12365), 8728 states have internal predecessors, (12365), 971 states have call successors, (971), 615 states have call predecessors, (971), 762 states have return successors, (1487), 1053 states have call predecessors, (1487), 970 states have call successors, (1487) [2023-12-16 01:09:20,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 14823 transitions. [2023-12-16 01:09:20,036 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 14823 transitions. Word has length 101 [2023-12-16 01:09:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:20,036 INFO L495 AbstractCegarLoop]: Abstraction has 10363 states and 14823 transitions. [2023-12-16 01:09:20,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 14823 transitions. [2023-12-16 01:09:20,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:20,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:20,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:20,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 01:09:20,042 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:20,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:20,042 INFO L85 PathProgramCache]: Analyzing trace with hash -908071739, now seen corresponding path program 1 times [2023-12-16 01:09:20,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:20,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551017090] [2023-12-16 01:09:20,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:20,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:20,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:20,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551017090] [2023-12-16 01:09:20,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551017090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:20,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:20,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:20,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225508918] [2023-12-16 01:09:20,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:20,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:20,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:20,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:20,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:20,145 INFO L87 Difference]: Start difference. First operand 10363 states and 14823 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:22,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:22,529 INFO L93 Difference]: Finished difference Result 26900 states and 41530 transitions. [2023-12-16 01:09:22,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:22,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:22,574 INFO L225 Difference]: With dead ends: 26900 [2023-12-16 01:09:22,574 INFO L226 Difference]: Without dead ends: 20748 [2023-12-16 01:09:22,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:22,593 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 1084 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:22,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1409 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 01:09:22,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20748 states. [2023-12-16 01:09:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20748 to 16525. [2023-12-16 01:09:23,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16525 states, 14150 states have (on average 1.4830388692579506) internal successors, (20985), 14282 states have internal predecessors, (20985), 1387 states have call successors, (1387), 807 states have call predecessors, (1387), 986 states have return successors, (2453), 1501 states have call predecessors, (2453), 1386 states have call successors, (2453) [2023-12-16 01:09:23,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16525 states to 16525 states and 24825 transitions. [2023-12-16 01:09:23,587 INFO L78 Accepts]: Start accepts. Automaton has 16525 states and 24825 transitions. Word has length 101 [2023-12-16 01:09:23,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:23,587 INFO L495 AbstractCegarLoop]: Abstraction has 16525 states and 24825 transitions. [2023-12-16 01:09:23,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:23,587 INFO L276 IsEmpty]: Start isEmpty. Operand 16525 states and 24825 transitions. [2023-12-16 01:09:23,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:23,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:23,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:23,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 01:09:23,596 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:23,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:23,596 INFO L85 PathProgramCache]: Analyzing trace with hash 826032711, now seen corresponding path program 1 times [2023-12-16 01:09:23,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:23,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527186247] [2023-12-16 01:09:23,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:23,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:23,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:23,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527186247] [2023-12-16 01:09:23,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527186247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:23,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:23,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:23,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409904053] [2023-12-16 01:09:23,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:23,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:23,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:23,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:23,682 INFO L87 Difference]: Start difference. First operand 16525 states and 24825 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:25,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:25,326 INFO L93 Difference]: Finished difference Result 31960 states and 50349 transitions. [2023-12-16 01:09:25,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:09:25,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:25,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:25,364 INFO L225 Difference]: With dead ends: 31960 [2023-12-16 01:09:25,364 INFO L226 Difference]: Without dead ends: 19644 [2023-12-16 01:09:25,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:09:25,380 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 932 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:25,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 691 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:09:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19644 states. [2023-12-16 01:09:26,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19644 to 16525. [2023-12-16 01:09:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16525 states, 14150 states have (on average 1.4784452296819788) internal successors, (20920), 14282 states have internal predecessors, (20920), 1387 states have call successors, (1387), 807 states have call predecessors, (1387), 986 states have return successors, (2453), 1501 states have call predecessors, (2453), 1386 states have call successors, (2453) [2023-12-16 01:09:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16525 states to 16525 states and 24760 transitions. [2023-12-16 01:09:26,510 INFO L78 Accepts]: Start accepts. Automaton has 16525 states and 24760 transitions. Word has length 101 [2023-12-16 01:09:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:26,510 INFO L495 AbstractCegarLoop]: Abstraction has 16525 states and 24760 transitions. [2023-12-16 01:09:26,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 16525 states and 24760 transitions. [2023-12-16 01:09:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:26,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:26,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:26,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 01:09:26,519 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:26,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:26,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1713255557, now seen corresponding path program 1 times [2023-12-16 01:09:26,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:26,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483129290] [2023-12-16 01:09:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:26,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:26,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:26,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483129290] [2023-12-16 01:09:26,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483129290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:26,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:26,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:26,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852371064] [2023-12-16 01:09:26,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:26,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:26,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:26,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:26,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:26,620 INFO L87 Difference]: Start difference. First operand 16525 states and 24760 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:29,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:09:29,477 INFO L93 Difference]: Finished difference Result 47754 states and 75604 transitions. [2023-12-16 01:09:29,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:09:29,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:09:29,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:09:29,557 INFO L225 Difference]: With dead ends: 47754 [2023-12-16 01:09:29,557 INFO L226 Difference]: Without dead ends: 35440 [2023-12-16 01:09:29,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:09:29,581 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1008 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:29,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1410 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 01:09:29,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35440 states. [2023-12-16 01:09:31,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35440 to 28913. [2023-12-16 01:09:31,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28913 states, 25290 states have (on average 1.511427441676552) internal successors, (38224), 25486 states have internal predecessors, (38224), 2187 states have call successors, (2187), 1191 states have call predecessors, (2187), 1434 states have return successors, (4839), 2365 states have call predecessors, (4839), 2186 states have call successors, (4839) [2023-12-16 01:09:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28913 states to 28913 states and 45250 transitions. [2023-12-16 01:09:31,313 INFO L78 Accepts]: Start accepts. Automaton has 28913 states and 45250 transitions. Word has length 101 [2023-12-16 01:09:31,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:09:31,314 INFO L495 AbstractCegarLoop]: Abstraction has 28913 states and 45250 transitions. [2023-12-16 01:09:31,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:09:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 28913 states and 45250 transitions. [2023-12-16 01:09:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:09:31,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:09:31,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:31,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 01:09:31,327 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:09:31,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:09:31,327 INFO L85 PathProgramCache]: Analyzing trace with hash -197787001, now seen corresponding path program 1 times [2023-12-16 01:09:31,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:09:31,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483250780] [2023-12-16 01:09:31,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:09:31,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:09:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:09:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:09:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:09:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:09:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:09:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:09:31,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:09:31,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:09:31,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483250780] [2023-12-16 01:09:31,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483250780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:09:31,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:09:31,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:09:31,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398679743] [2023-12-16 01:09:31,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:09:31,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:09:31,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:09:31,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:09:31,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:09:31,464 INFO L87 Difference]: Start difference. First operand 28913 states and 45250 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-16 01:09:34,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 01:09:34,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-16 01:09:34,391 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1275 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:09:34,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 713 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:09:34,392 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 01:09:34,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 01:09:34,393 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (28913states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (48835 states constructed, input type IntersectNwa). [2023-12-16 01:09:34,394 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 01:09:34,402 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:09:34,404 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:09:34,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:09:34 BoogieIcfgContainer [2023-12-16 01:09:34,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:09:34,406 INFO L158 Benchmark]: Toolchain (without parser) took 54104.96ms. Allocated memory was 181.4MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 132.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-16 01:09:34,406 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 134.8MB in the beginning and 134.7MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:09:34,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.91ms. Allocated memory is still 181.4MB. Free memory was 132.4MB in the beginning and 110.3MB in the end (delta: 22.1MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-16 01:09:34,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.64ms. Allocated memory is still 181.4MB. Free memory was 110.3MB in the beginning and 106.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 01:09:34,406 INFO L158 Benchmark]: Boogie Preprocessor took 94.36ms. Allocated memory is still 181.4MB. Free memory was 106.5MB in the beginning and 102.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 01:09:34,406 INFO L158 Benchmark]: RCFGBuilder took 771.27ms. Allocated memory was 181.4MB in the beginning and 235.9MB in the end (delta: 54.5MB). Free memory was 102.0MB in the beginning and 171.8MB in the end (delta: -69.8MB). Peak memory consumption was 20.1MB. Max. memory is 8.0GB. [2023-12-16 01:09:34,406 INFO L158 Benchmark]: TraceAbstraction took 52859.56ms. Allocated memory was 235.9MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 170.7MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-16 01:09:34,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 181.4MB. Free memory was 134.8MB in the beginning and 134.7MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 338.91ms. Allocated memory is still 181.4MB. Free memory was 132.4MB in the beginning and 110.3MB in the end (delta: 22.1MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.64ms. Allocated memory is still 181.4MB. Free memory was 110.3MB in the beginning and 106.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 94.36ms. Allocated memory is still 181.4MB. Free memory was 106.5MB in the beginning and 102.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 771.27ms. Allocated memory was 181.4MB in the beginning and 235.9MB in the end (delta: 54.5MB). Free memory was 102.0MB in the beginning and 171.8MB in the end (delta: -69.8MB). Peak memory consumption was 20.1MB. Max. memory is 8.0GB. * TraceAbstraction took 52859.56ms. Allocated memory was 235.9MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 170.7MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 496]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 496). Cancelled while NwaCegarLoop was constructing difference of abstraction (28913states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (48835 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 28). Cancelled while NwaCegarLoop was constructing difference of abstraction (28913states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (48835 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 301 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 52.8s, OverallIterations: 27, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 38.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28448 SdHoareTripleChecker+Valid, 21.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27852 mSDsluCounter, 30252 SdHoareTripleChecker+Invalid, 17.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23102 mSDsCounter, 3926 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37756 IncrementalHoareTripleChecker+Invalid, 41682 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3926 mSolverCounterUnsat, 7150 mSDtfsCounter, 37756 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 996 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 390 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1401 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28913occurred in iteration=26, InterpolantAutomatonStates: 357, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.6s AutomataMinimizationTime, 26 MinimizatonAttempts, 25468 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 2327 NumberOfCodeBlocks, 2327 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2366 ConstructedInterpolants, 0 QuantifiedInterpolants, 6853 SizeOfPredicates, 0 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 29 InterpolantComputations, 26 PerfectInterpolantSequences, 43/49 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown