./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b9ed7c85c1e945b329b46ea2facde1ef0195f46b3e9e9585453dabdeb816de5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:20:52,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:20:52,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:20:52,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:20:52,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:20:52,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:20:52,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:20:52,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:20:52,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:20:52,424 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:20:52,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:20:52,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:20:52,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:20:52,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:20:52,426 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:20:52,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:20:52,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:20:52,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:20:52,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:20:52,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:20:52,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:20:52,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:20:52,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:20:52,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:20:52,429 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:20:52,430 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:20:52,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:20:52,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:20:52,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:20:52,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:20:52,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:20:52,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:20:52,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:20:52,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:20:52,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:20:52,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:20:52,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:20:52,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:20:52,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:20:52,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:20:52,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:20:52,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:20:52,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b9ed7c85c1e945b329b46ea2facde1ef0195f46b3e9e9585453dabdeb816de5 [2024-11-18 16:20:52,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:20:52,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:20:52,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:20:52,758 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:20:52,759 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:20:52,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c [2024-11-18 16:20:54,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:20:54,552 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:20:54,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c [2024-11-18 16:20:54,569 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb549e87e/49263fa326b84422b82398b6d40b86d6/FLAG515809c27 [2024-11-18 16:20:54,593 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb549e87e/49263fa326b84422b82398b6d40b86d6 [2024-11-18 16:20:54,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:20:54,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:20:54,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:20:54,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:20:54,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:20:54,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:20:54" (1/1) ... [2024-11-18 16:20:54,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77565310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:54, skipping insertion in model container [2024-11-18 16:20:54,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:20:54" (1/1) ... [2024-11-18 16:20:54,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:20:54,858 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c[911,924] [2024-11-18 16:20:54,925 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c[8416,8429] [2024-11-18 16:20:54,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:20:55,008 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:20:55,022 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c[911,924] [2024-11-18 16:20:55,046 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c[8416,8429] [2024-11-18 16:20:55,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:20:55,112 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:20:55,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55 WrapperNode [2024-11-18 16:20:55,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:20:55,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:20:55,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:20:55,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:20:55,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,191 INFO L138 Inliner]: procedures = 65, calls = 76, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 686 [2024-11-18 16:20:55,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:20:55,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:20:55,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:20:55,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:20:55,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,216 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,246 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]. [2024-11-18 16:20:55,246 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:20:55,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:20:55,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:20:55,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:20:55,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (1/1) ... [2024-11-18 16:20:55,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:20:55,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:20:55,318 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) [2024-11-18 16:20:55,324 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 [2024-11-18 16:20:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:20:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 16:20:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 16:20:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-18 16:20:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-18 16:20:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-18 16:20:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-18 16:20:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-18 16:20:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-18 16:20:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-18 16:20:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-18 16:20:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-18 16:20:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-18 16:20:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-18 16:20:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-18 16:20:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-18 16:20:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-18 16:20:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-18 16:20:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-18 16:20:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-18 16:20:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-18 16:20:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-18 16:20:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-18 16:20:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:20:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-18 16:20:55,385 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-18 16:20:55,385 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-18 16:20:55,386 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-18 16:20:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:20:55,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:20:55,386 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-18 16:20:55,386 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-18 16:20:55,530 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:20:55,534 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:20:56,134 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-18 16:20:56,135 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-18 16:20:56,281 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-11-18 16:20:56,281 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:20:56,311 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:20:56,313 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-18 16:20:56,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:20:56 BoogieIcfgContainer [2024-11-18 16:20:56,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:20:56,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:20:56,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:20:56,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:20:56,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:20:54" (1/3) ... [2024-11-18 16:20:56,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51663e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:20:56, skipping insertion in model container [2024-11-18 16:20:56,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:20:55" (2/3) ... [2024-11-18 16:20:56,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51663e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:20:56, skipping insertion in model container [2024-11-18 16:20:56,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:20:56" (3/3) ... [2024-11-18 16:20:56,323 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.05.cil-1.c [2024-11-18 16:20:56,340 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:20:56,341 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:20:56,431 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:20:56,438 INFO L333 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, 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;@2133c306, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:20:56,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:20:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 330 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 284 states have internal predecessors, (440), 35 states have call successors, (35), 14 states have call predecessors, (35), 14 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-18 16:20:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:20:56,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:56,462 INFO L215 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] [2024-11-18 16:20:56,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:56,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:56,468 INFO L85 PathProgramCache]: Analyzing trace with hash 341992279, now seen corresponding path program 1 times [2024-11-18 16:20:56,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:56,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537043831] [2024-11-18 16:20:56,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:56,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:57,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:57,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537043831] [2024-11-18 16:20:57,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537043831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:57,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:57,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:20:57,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599115729] [2024-11-18 16:20:57,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:57,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:20:57,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:57,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:20:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:20:57,062 INFO L87 Difference]: Start difference. First operand has 330 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 284 states have internal predecessors, (440), 35 states have call successors, (35), 14 states have call predecessors, (35), 14 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:20:57,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:57,936 INFO L93 Difference]: Finished difference Result 758 states and 1173 transitions. [2024-11-18 16:20:57,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:20:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 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 65 [2024-11-18 16:20:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:57,957 INFO L225 Difference]: With dead ends: 758 [2024-11-18 16:20:57,957 INFO L226 Difference]: Without dead ends: 439 [2024-11-18 16:20:57,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:20:57,971 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 380 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:57,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1067 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:20:58,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-18 16:20:58,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 432. [2024-11-18 16:20:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 360 states have (on average 1.475) internal successors, (531), 366 states have internal predecessors, (531), 48 states have call successors, (48), 21 states have call predecessors, (48), 22 states have return successors, (51), 47 states have call predecessors, (51), 46 states have call successors, (51) [2024-11-18 16:20:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 630 transitions. [2024-11-18 16:20:58,084 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 630 transitions. Word has length 65 [2024-11-18 16:20:58,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:58,086 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 630 transitions. [2024-11-18 16:20:58,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:20:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 630 transitions. [2024-11-18 16:20:58,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:20:58,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:58,091 INFO L215 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] [2024-11-18 16:20:58,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:20:58,092 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:58,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:58,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2020880919, now seen corresponding path program 1 times [2024-11-18 16:20:58,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:58,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847119059] [2024-11-18 16:20:58,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:58,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:58,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:58,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847119059] [2024-11-18 16:20:58,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847119059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:58,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:58,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:20:58,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508897249] [2024-11-18 16:20:58,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:58,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:20:58,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:58,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:20:58,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:20:58,358 INFO L87 Difference]: Start difference. First operand 432 states and 630 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:20:59,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:59,196 INFO L93 Difference]: Finished difference Result 799 states and 1145 transitions. [2024-11-18 16:20:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:20:59,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 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 65 [2024-11-18 16:20:59,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:59,206 INFO L225 Difference]: With dead ends: 799 [2024-11-18 16:20:59,207 INFO L226 Difference]: Without dead ends: 590 [2024-11-18 16:20:59,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:20:59,211 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 678 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:59,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1348 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:20:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-18 16:20:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 544. [2024-11-18 16:20:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 450 states have (on average 1.46) internal successors, (657), 458 states have internal predecessors, (657), 61 states have call successors, (61), 28 states have call predecessors, (61), 31 states have return successors, (72), 61 states have call predecessors, (72), 59 states have call successors, (72) [2024-11-18 16:20:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 790 transitions. [2024-11-18 16:20:59,278 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 790 transitions. Word has length 65 [2024-11-18 16:20:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:59,279 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 790 transitions. [2024-11-18 16:20:59,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:20:59,280 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 790 transitions. [2024-11-18 16:20:59,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:20:59,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:59,287 INFO L215 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] [2024-11-18 16:20:59,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:20:59,287 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:59,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:59,288 INFO L85 PathProgramCache]: Analyzing trace with hash -7705191, now seen corresponding path program 1 times [2024-11-18 16:20:59,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:59,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19333096] [2024-11-18 16:20:59,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:59,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:59,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:59,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19333096] [2024-11-18 16:20:59,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19333096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:59,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:59,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:20:59,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355206862] [2024-11-18 16:20:59,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:59,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:20:59,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:59,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:20:59,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:20:59,394 INFO L87 Difference]: Start difference. First operand 544 states and 790 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:20:59,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:20:59,659 INFO L93 Difference]: Finished difference Result 1450 states and 2072 transitions. [2024-11-18 16:20:59,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:20:59,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-18 16:20:59,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:20:59,673 INFO L225 Difference]: With dead ends: 1450 [2024-11-18 16:20:59,675 INFO L226 Difference]: Without dead ends: 1135 [2024-11-18 16:20:59,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:20:59,678 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 568 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:20:59,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1114 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:20:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-18 16:20:59,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1112. [2024-11-18 16:20:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 908 states have (on average 1.4129955947136563) internal successors, (1283), 924 states have internal predecessors, (1283), 121 states have call successors, (121), 70 states have call predecessors, (121), 81 states have return successors, (157), 121 states have call predecessors, (157), 119 states have call successors, (157) [2024-11-18 16:20:59,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1561 transitions. [2024-11-18 16:20:59,780 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1561 transitions. Word has length 65 [2024-11-18 16:20:59,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:20:59,780 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1561 transitions. [2024-11-18 16:20:59,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:20:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1561 transitions. [2024-11-18 16:20:59,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:20:59,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:20:59,784 INFO L215 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] [2024-11-18 16:20:59,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:20:59,785 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:20:59,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:20:59,788 INFO L85 PathProgramCache]: Analyzing trace with hash 767651760, now seen corresponding path program 1 times [2024-11-18 16:20:59,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:20:59,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346037619] [2024-11-18 16:20:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:20:59,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:20:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:20:59,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:20:59,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:20:59,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346037619] [2024-11-18 16:20:59,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346037619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:20:59,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:20:59,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:20:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919025566] [2024-11-18 16:20:59,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:20:59,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:20:59,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:20:59,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:20:59,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:20:59,895 INFO L87 Difference]: Start difference. First operand 1112 states and 1561 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:00,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:00,015 INFO L93 Difference]: Finished difference Result 2015 states and 2825 transitions. [2024-11-18 16:21:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:21:00,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 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 66 [2024-11-18 16:21:00,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:00,026 INFO L225 Difference]: With dead ends: 2015 [2024-11-18 16:21:00,028 INFO L226 Difference]: Without dead ends: 1132 [2024-11-18 16:21:00,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:00,035 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 0 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:00,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2339 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:00,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-18 16:21:00,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132. [2024-11-18 16:21:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 924 states have (on average 1.4004329004329004) internal successors, (1294), 940 states have internal predecessors, (1294), 121 states have call successors, (121), 70 states have call predecessors, (121), 85 states have return successors, (164), 125 states have call predecessors, (164), 119 states have call successors, (164) [2024-11-18 16:21:00,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1579 transitions. [2024-11-18 16:21:00,126 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1579 transitions. Word has length 66 [2024-11-18 16:21:00,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:00,126 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1579 transitions. [2024-11-18 16:21:00,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1579 transitions. [2024-11-18 16:21:00,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:21:00,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:00,129 INFO L215 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] [2024-11-18 16:21:00,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:21:00,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:00,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash -261707538, now seen corresponding path program 1 times [2024-11-18 16:21:00,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:00,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921034026] [2024-11-18 16:21:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:00,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:00,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:00,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921034026] [2024-11-18 16:21:00,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921034026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:00,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:00,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:00,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389659349] [2024-11-18 16:21:00,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:00,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:00,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:00,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:00,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:00,220 INFO L87 Difference]: Start difference. First operand 1132 states and 1579 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:21:00,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:00,890 INFO L93 Difference]: Finished difference Result 3693 states and 5115 transitions. [2024-11-18 16:21:00,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:21:00,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-18 16:21:00,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:00,901 INFO L225 Difference]: With dead ends: 3693 [2024-11-18 16:21:00,901 INFO L226 Difference]: Without dead ends: 1428 [2024-11-18 16:21:00,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:00,908 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 1426 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:00,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 2170 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-11-18 16:21:00,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1048. [2024-11-18 16:21:00,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 840 states have (on average 1.3702380952380953) internal successors, (1151), 856 states have internal predecessors, (1151), 121 states have call successors, (121), 70 states have call predecessors, (121), 85 states have return successors, (152), 125 states have call predecessors, (152), 119 states have call successors, (152) [2024-11-18 16:21:01,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1424 transitions. [2024-11-18 16:21:01,007 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1424 transitions. Word has length 66 [2024-11-18 16:21:01,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:01,007 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1424 transitions. [2024-11-18 16:21:01,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:21:01,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1424 transitions. [2024-11-18 16:21:01,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:21:01,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:01,009 INFO L215 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] [2024-11-18 16:21:01,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:21:01,010 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:01,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1668124653, now seen corresponding path program 1 times [2024-11-18 16:21:01,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:01,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102049466] [2024-11-18 16:21:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:01,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:01,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:01,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102049466] [2024-11-18 16:21:01,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102049466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:01,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:01,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:01,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984444757] [2024-11-18 16:21:01,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:01,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:01,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:01,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:01,087 INFO L87 Difference]: Start difference. First operand 1048 states and 1424 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:01,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:01,159 INFO L93 Difference]: Finished difference Result 1912 states and 2572 transitions. [2024-11-18 16:21:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:21:01,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 2 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 67 [2024-11-18 16:21:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:01,167 INFO L225 Difference]: With dead ends: 1912 [2024-11-18 16:21:01,167 INFO L226 Difference]: Without dead ends: 1093 [2024-11-18 16:21:01,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:01,171 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 0 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:01,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2295 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:01,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-18 16:21:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2024-11-18 16:21:01,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 876 states have (on average 1.3550228310502284) internal successors, (1187), 892 states have internal predecessors, (1187), 121 states have call successors, (121), 70 states have call predecessors, (121), 94 states have return successors, (161), 134 states have call predecessors, (161), 119 states have call successors, (161) [2024-11-18 16:21:01,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1469 transitions. [2024-11-18 16:21:01,237 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1469 transitions. Word has length 67 [2024-11-18 16:21:01,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:01,237 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1469 transitions. [2024-11-18 16:21:01,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:01,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1469 transitions. [2024-11-18 16:21:01,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:21:01,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:01,239 INFO L215 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] [2024-11-18 16:21:01,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:21:01,240 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:01,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:01,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1240639249, now seen corresponding path program 1 times [2024-11-18 16:21:01,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:01,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783533000] [2024-11-18 16:21:01,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:01,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:01,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:01,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783533000] [2024-11-18 16:21:01,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783533000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:01,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:01,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:01,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394285391] [2024-11-18 16:21:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:01,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:01,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:01,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:01,398 INFO L87 Difference]: Start difference. First operand 1093 states and 1469 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:02,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:02,189 INFO L93 Difference]: Finished difference Result 2009 states and 2638 transitions. [2024-11-18 16:21:02,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 16:21:02,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 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 67 [2024-11-18 16:21:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:02,197 INFO L225 Difference]: With dead ends: 2009 [2024-11-18 16:21:02,197 INFO L226 Difference]: Without dead ends: 1232 [2024-11-18 16:21:02,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:21:02,201 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 677 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:02,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1048 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:21:02,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-11-18 16:21:02,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1102. [2024-11-18 16:21:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 885 states have (on average 1.3491525423728814) internal successors, (1194), 899 states have internal predecessors, (1194), 122 states have call successors, (122), 71 states have call predecessors, (122), 93 states have return successors, (156), 135 states have call predecessors, (156), 120 states have call successors, (156) [2024-11-18 16:21:02,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1472 transitions. [2024-11-18 16:21:02,281 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1472 transitions. Word has length 67 [2024-11-18 16:21:02,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:02,282 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1472 transitions. [2024-11-18 16:21:02,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:02,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1472 transitions. [2024-11-18 16:21:02,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:21:02,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:02,284 INFO L215 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] [2024-11-18 16:21:02,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:21:02,284 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:02,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1374652755, now seen corresponding path program 1 times [2024-11-18 16:21:02,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:02,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930129531] [2024-11-18 16:21:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:02,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:02,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930129531] [2024-11-18 16:21:02,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930129531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:02,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:02,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:21:02,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858208800] [2024-11-18 16:21:02,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:02,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:21:02,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:02,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:21:02,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:21:02,340 INFO L87 Difference]: Start difference. First operand 1102 states and 1472 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:02,799 INFO L93 Difference]: Finished difference Result 2831 states and 3745 transitions. [2024-11-18 16:21:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:21:02,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-18 16:21:02,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:02,810 INFO L225 Difference]: With dead ends: 2831 [2024-11-18 16:21:02,810 INFO L226 Difference]: Without dead ends: 1961 [2024-11-18 16:21:02,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:21:02,813 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 629 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:02,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 535 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:21:02,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2024-11-18 16:21:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1951. [2024-11-18 16:21:02,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1539 states have (on average 1.3105912930474335) internal successors, (2017), 1566 states have internal predecessors, (2017), 226 states have call successors, (226), 135 states have call predecessors, (226), 184 states have return successors, (333), 256 states have call predecessors, (333), 224 states have call successors, (333) [2024-11-18 16:21:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2576 transitions. [2024-11-18 16:21:02,938 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2576 transitions. Word has length 67 [2024-11-18 16:21:02,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:02,939 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 2576 transitions. [2024-11-18 16:21:02,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2576 transitions. [2024-11-18 16:21:02,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 16:21:02,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:02,941 INFO L215 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] [2024-11-18 16:21:02,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:21:02,942 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:02,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:02,942 INFO L85 PathProgramCache]: Analyzing trace with hash -85322935, now seen corresponding path program 1 times [2024-11-18 16:21:02,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:02,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969540861] [2024-11-18 16:21:02,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:02,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:02,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:02,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969540861] [2024-11-18 16:21:02,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969540861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:02,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:02,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:21:02,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115165182] [2024-11-18 16:21:02,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:03,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:21:03,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:03,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:21:03,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:03,001 INFO L87 Difference]: Start difference. First operand 1951 states and 2576 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:03,109 INFO L93 Difference]: Finished difference Result 3534 states and 4703 transitions. [2024-11-18 16:21:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:21:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 2 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 68 [2024-11-18 16:21:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:03,114 INFO L225 Difference]: With dead ends: 3534 [2024-11-18 16:21:03,115 INFO L226 Difference]: Without dead ends: 209 [2024-11-18 16:21:03,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:03,123 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 428 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:03,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 447 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:03,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-18 16:21:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-18 16:21:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 183 states have (on average 1.5136612021857923) internal successors, (277), 184 states have internal predecessors, (277), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-18 16:21:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 315 transitions. [2024-11-18 16:21:03,136 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 315 transitions. Word has length 68 [2024-11-18 16:21:03,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:03,137 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 315 transitions. [2024-11-18 16:21:03,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:03,137 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 315 transitions. [2024-11-18 16:21:03,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:03,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:03,138 INFO L215 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] [2024-11-18 16:21:03,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:21:03,139 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:03,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:03,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1164243945, now seen corresponding path program 1 times [2024-11-18 16:21:03,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:03,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983399677] [2024-11-18 16:21:03,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:03,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:03,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:03,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983399677] [2024-11-18 16:21:03,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983399677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:03,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:03,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:21:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876080288] [2024-11-18 16:21:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:03,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:21:03,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:03,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:21:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:03,187 INFO L87 Difference]: Start difference. First operand 209 states and 315 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:03,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:03,202 INFO L93 Difference]: Finished difference Result 410 states and 619 transitions. [2024-11-18 16:21:03,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:21:03,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 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 [2024-11-18 16:21:03,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:03,207 INFO L225 Difference]: With dead ends: 410 [2024-11-18 16:21:03,207 INFO L226 Difference]: Without dead ends: 209 [2024-11-18 16:21:03,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:03,208 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 307 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:03,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 314 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:03,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-18 16:21:03,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-18 16:21:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 183 states have (on average 1.5081967213114753) internal successors, (276), 184 states have internal predecessors, (276), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-18 16:21:03,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 314 transitions. [2024-11-18 16:21:03,222 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 314 transitions. Word has length 101 [2024-11-18 16:21:03,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:03,223 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 314 transitions. [2024-11-18 16:21:03,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:03,223 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 314 transitions. [2024-11-18 16:21:03,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:03,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:03,224 INFO L215 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] [2024-11-18 16:21:03,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:21:03,225 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:03,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:03,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1135743655, now seen corresponding path program 1 times [2024-11-18 16:21:03,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:03,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825224344] [2024-11-18 16:21:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:03,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:03,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:03,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825224344] [2024-11-18 16:21:03,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825224344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:03,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:03,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:21:03,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629505517] [2024-11-18 16:21:03,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:03,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:21:03,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:03,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:21:03,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:21:03,333 INFO L87 Difference]: Start difference. First operand 209 states and 314 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:03,661 INFO L93 Difference]: Finished difference Result 619 states and 942 transitions. [2024-11-18 16:21:03,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:21:03,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:03,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:03,666 INFO L225 Difference]: With dead ends: 619 [2024-11-18 16:21:03,666 INFO L226 Difference]: Without dead ends: 424 [2024-11-18 16:21:03,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:03,667 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 562 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:03,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 923 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:21:03,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-18 16:21:03,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 409. [2024-11-18 16:21:03,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 362 states have (on average 1.522099447513812) internal successors, (551), 364 states have internal predecessors, (551), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-18 16:21:03,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 618 transitions. [2024-11-18 16:21:03,688 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 618 transitions. Word has length 101 [2024-11-18 16:21:03,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:03,689 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 618 transitions. [2024-11-18 16:21:03,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:03,689 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 618 transitions. [2024-11-18 16:21:03,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:03,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:03,690 INFO L215 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] [2024-11-18 16:21:03,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:21:03,691 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:03,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:03,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1442339037, now seen corresponding path program 1 times [2024-11-18 16:21:03,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:03,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676252992] [2024-11-18 16:21:03,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:03,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:03,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:03,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676252992] [2024-11-18 16:21:03,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676252992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:03,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:03,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206236123] [2024-11-18 16:21:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:03,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:03,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:03,810 INFO L87 Difference]: Start difference. First operand 409 states and 618 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:04,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:04,350 INFO L93 Difference]: Finished difference Result 1049 states and 1601 transitions. [2024-11-18 16:21:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:04,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:04,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:04,356 INFO L225 Difference]: With dead ends: 1049 [2024-11-18 16:21:04,356 INFO L226 Difference]: Without dead ends: 654 [2024-11-18 16:21:04,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:04,359 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 555 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:04,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1609 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:21:04,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-18 16:21:04,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 595. [2024-11-18 16:21:04,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 527 states have (on average 1.5142314990512333) internal successors, (798), 530 states have internal predecessors, (798), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-18 16:21:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 896 transitions. [2024-11-18 16:21:04,400 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 896 transitions. Word has length 101 [2024-11-18 16:21:04,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:04,401 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 896 transitions. [2024-11-18 16:21:04,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 896 transitions. [2024-11-18 16:21:04,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:04,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:04,402 INFO L215 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] [2024-11-18 16:21:04,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:21:04,403 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:04,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:04,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1527772065, now seen corresponding path program 1 times [2024-11-18 16:21:04,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:04,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894369178] [2024-11-18 16:21:04,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:04,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:04,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:04,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894369178] [2024-11-18 16:21:04,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894369178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:04,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:04,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:04,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842260091] [2024-11-18 16:21:04,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:04,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:04,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:04,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:04,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:04,535 INFO L87 Difference]: Start difference. First operand 595 states and 896 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:05,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:05,065 INFO L93 Difference]: Finished difference Result 1632 states and 2484 transitions. [2024-11-18 16:21:05,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:05,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:05,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:05,073 INFO L225 Difference]: With dead ends: 1632 [2024-11-18 16:21:05,073 INFO L226 Difference]: Without dead ends: 1051 [2024-11-18 16:21:05,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:05,076 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 550 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:05,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 1593 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:05,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2024-11-18 16:21:05,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 986. [2024-11-18 16:21:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 874 states have (on average 1.5137299771167048) internal successors, (1323), 881 states have internal predecessors, (1323), 75 states have call successors, (75), 30 states have call predecessors, (75), 36 states have return successors, (91), 78 states have call predecessors, (91), 75 states have call successors, (91) [2024-11-18 16:21:05,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1489 transitions. [2024-11-18 16:21:05,137 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1489 transitions. Word has length 101 [2024-11-18 16:21:05,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:05,138 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1489 transitions. [2024-11-18 16:21:05,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:05,138 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1489 transitions. [2024-11-18 16:21:05,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:05,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:05,140 INFO L215 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] [2024-11-18 16:21:05,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:21:05,140 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:05,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:05,141 INFO L85 PathProgramCache]: Analyzing trace with hash 38985885, now seen corresponding path program 1 times [2024-11-18 16:21:05,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:05,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568207312] [2024-11-18 16:21:05,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:05,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:05,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:05,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:05,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568207312] [2024-11-18 16:21:05,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568207312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:05,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:05,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:05,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223991057] [2024-11-18 16:21:05,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:05,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:05,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:05,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:05,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:05,265 INFO L87 Difference]: Start difference. First operand 986 states and 1489 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:05,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:05,822 INFO L93 Difference]: Finished difference Result 2869 states and 4395 transitions. [2024-11-18 16:21:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:05,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:05,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:05,838 INFO L225 Difference]: With dead ends: 2869 [2024-11-18 16:21:05,838 INFO L226 Difference]: Without dead ends: 1897 [2024-11-18 16:21:05,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:05,842 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 545 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:05,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1581 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:05,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2024-11-18 16:21:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1819. [2024-11-18 16:21:05,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1613 states have (on average 1.5220086794792314) internal successors, (2455), 1634 states have internal predecessors, (2455), 131 states have call successors, (131), 54 states have call predecessors, (131), 74 states have return successors, (195), 138 states have call predecessors, (195), 131 states have call successors, (195) [2024-11-18 16:21:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2781 transitions. [2024-11-18 16:21:05,953 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2781 transitions. Word has length 101 [2024-11-18 16:21:05,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:05,954 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2781 transitions. [2024-11-18 16:21:05,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:05,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2781 transitions. [2024-11-18 16:21:05,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:05,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:05,957 INFO L215 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] [2024-11-18 16:21:05,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:21:05,957 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:05,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:05,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1018852193, now seen corresponding path program 1 times [2024-11-18 16:21:05,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:05,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523705750] [2024-11-18 16:21:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:05,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:06,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:06,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523705750] [2024-11-18 16:21:06,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523705750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:06,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:06,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:06,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775094164] [2024-11-18 16:21:06,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:06,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:06,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:06,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:06,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:06,078 INFO L87 Difference]: Start difference. First operand 1819 states and 2781 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:06,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:06,680 INFO L93 Difference]: Finished difference Result 5528 states and 8629 transitions. [2024-11-18 16:21:06,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:06,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:06,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:06,730 INFO L225 Difference]: With dead ends: 5528 [2024-11-18 16:21:06,730 INFO L226 Difference]: Without dead ends: 3723 [2024-11-18 16:21:06,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:06,738 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 562 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:06,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1102 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:06,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2024-11-18 16:21:06,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3620. [2024-11-18 16:21:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3208 states have (on average 1.5370947630922693) internal successors, (4931), 3275 states have internal predecessors, (4931), 243 states have call successors, (243), 102 states have call predecessors, (243), 168 states have return successors, (499), 258 states have call predecessors, (499), 243 states have call successors, (499) [2024-11-18 16:21:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5673 transitions. [2024-11-18 16:21:06,997 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5673 transitions. Word has length 101 [2024-11-18 16:21:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:06,997 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5673 transitions. [2024-11-18 16:21:06,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:06,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5673 transitions. [2024-11-18 16:21:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:07,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:07,001 INFO L215 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] [2024-11-18 16:21:07,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:21:07,001 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:07,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:07,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2133612637, now seen corresponding path program 1 times [2024-11-18 16:21:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:07,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814925803] [2024-11-18 16:21:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:07,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:07,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:07,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814925803] [2024-11-18 16:21:07,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814925803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:07,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:07,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:07,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853766994] [2024-11-18 16:21:07,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:07,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:07,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:07,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:07,151 INFO L87 Difference]: Start difference. First operand 3620 states and 5673 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:08,179 INFO L93 Difference]: Finished difference Result 11967 states and 19272 transitions. [2024-11-18 16:21:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:08,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:08,233 INFO L225 Difference]: With dead ends: 11967 [2024-11-18 16:21:08,234 INFO L226 Difference]: Without dead ends: 8361 [2024-11-18 16:21:08,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:08,252 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 588 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:08,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1544 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:21:08,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8361 states. [2024-11-18 16:21:08,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8361 to 7525. [2024-11-18 16:21:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7525 states, 6663 states have (on average 1.5583070688878884) internal successors, (10383), 6876 states have internal predecessors, (10383), 451 states have call successors, (451), 198 states have call predecessors, (451), 410 states have return successors, (1475), 482 states have call predecessors, (1475), 451 states have call successors, (1475) [2024-11-18 16:21:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7525 states to 7525 states and 12309 transitions. [2024-11-18 16:21:08,981 INFO L78 Accepts]: Start accepts. Automaton has 7525 states and 12309 transitions. Word has length 101 [2024-11-18 16:21:08,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:08,982 INFO L471 AbstractCegarLoop]: Abstraction has 7525 states and 12309 transitions. [2024-11-18 16:21:08,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 7525 states and 12309 transitions. [2024-11-18 16:21:08,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:08,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:08,990 INFO L215 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] [2024-11-18 16:21:08,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:21:08,991 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:08,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:08,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1921114913, now seen corresponding path program 1 times [2024-11-18 16:21:08,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:08,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124629783] [2024-11-18 16:21:08,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:08,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:09,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:09,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124629783] [2024-11-18 16:21:09,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124629783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:09,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:09,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:09,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507937243] [2024-11-18 16:21:09,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:09,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:09,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:09,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:09,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:09,125 INFO L87 Difference]: Start difference. First operand 7525 states and 12309 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:10,535 INFO L93 Difference]: Finished difference Result 25034 states and 42742 transitions. [2024-11-18 16:21:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:10,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:10,651 INFO L225 Difference]: With dead ends: 25034 [2024-11-18 16:21:10,652 INFO L226 Difference]: Without dead ends: 17523 [2024-11-18 16:21:10,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:10,690 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 663 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:10,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1528 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:21:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2024-11-18 16:21:12,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 16018. [2024-11-18 16:21:12,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16018 states, 14110 states have (on average 1.578951098511694) internal successors, (22279), 14777 states have internal predecessors, (22279), 851 states have call successors, (851), 390 states have call predecessors, (851), 1056 states have return successors, (4947), 914 states have call predecessors, (4947), 851 states have call successors, (4947) [2024-11-18 16:21:12,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16018 states to 16018 states and 28077 transitions. [2024-11-18 16:21:12,332 INFO L78 Accepts]: Start accepts. Automaton has 16018 states and 28077 transitions. Word has length 101 [2024-11-18 16:21:12,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:12,333 INFO L471 AbstractCegarLoop]: Abstraction has 16018 states and 28077 transitions. [2024-11-18 16:21:12,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:12,334 INFO L276 IsEmpty]: Start isEmpty. Operand 16018 states and 28077 transitions. [2024-11-18 16:21:12,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:12,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:12,345 INFO L215 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] [2024-11-18 16:21:12,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:21:12,345 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:12,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:12,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1082081251, now seen corresponding path program 1 times [2024-11-18 16:21:12,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:12,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990088745] [2024-11-18 16:21:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:12,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:12,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:12,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990088745] [2024-11-18 16:21:12,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990088745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:12,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:12,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:12,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858871498] [2024-11-18 16:21:12,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:12,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:12,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:12,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:12,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:12,483 INFO L87 Difference]: Start difference. First operand 16018 states and 28077 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:15,307 INFO L93 Difference]: Finished difference Result 53465 states and 100268 transitions. [2024-11-18 16:21:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:15,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:15,605 INFO L225 Difference]: With dead ends: 53465 [2024-11-18 16:21:15,605 INFO L226 Difference]: Without dead ends: 37461 [2024-11-18 16:21:15,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:15,703 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 558 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:15,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1520 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 16:21:15,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37461 states. [2024-11-18 16:21:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37461 to 35255. [2024-11-18 16:21:18,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35255 states, 30801 states have (on average 1.595630012012597) internal successors, (49147), 32862 states have internal predecessors, (49147), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 2834 states have return successors, (18003), 1746 states have call predecessors, (18003), 1619 states have call successors, (18003) [2024-11-18 16:21:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35255 states to 35255 states and 68769 transitions. [2024-11-18 16:21:18,974 INFO L78 Accepts]: Start accepts. Automaton has 35255 states and 68769 transitions. Word has length 101 [2024-11-18 16:21:18,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:18,975 INFO L471 AbstractCegarLoop]: Abstraction has 35255 states and 68769 transitions. [2024-11-18 16:21:18,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:18,975 INFO L276 IsEmpty]: Start isEmpty. Operand 35255 states and 68769 transitions. [2024-11-18 16:21:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:18,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:18,998 INFO L215 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] [2024-11-18 16:21:18,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:21:18,998 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:18,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1055015649, now seen corresponding path program 1 times [2024-11-18 16:21:18,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:18,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779244357] [2024-11-18 16:21:18,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:18,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:19,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:19,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779244357] [2024-11-18 16:21:19,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779244357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:19,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:19,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:19,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816620073] [2024-11-18 16:21:19,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:19,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:19,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:19,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:19,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:19,110 INFO L87 Difference]: Start difference. First operand 35255 states and 68769 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:24,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:24,380 INFO L93 Difference]: Finished difference Result 114022 states and 248302 transitions. [2024-11-18 16:21:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:24,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:25,256 INFO L225 Difference]: With dead ends: 114022 [2024-11-18 16:21:25,257 INFO L226 Difference]: Without dead ends: 78781 [2024-11-18 16:21:25,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:25,374 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 561 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:25,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1494 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 16:21:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78781 states. [2024-11-18 16:21:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78781 to 76453. [2024-11-18 16:21:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76453 states, 65513 states have (on average 1.5897455466853907) internal successors, (104149), 71820 states have internal predecessors, (104149), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-18 16:21:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76453 states to 76453 states and 175867 transitions. [2024-11-18 16:21:33,407 INFO L78 Accepts]: Start accepts. Automaton has 76453 states and 175867 transitions. Word has length 101 [2024-11-18 16:21:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:33,408 INFO L471 AbstractCegarLoop]: Abstraction has 76453 states and 175867 transitions. [2024-11-18 16:21:33,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 76453 states and 175867 transitions. [2024-11-18 16:21:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 16:21:33,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:33,451 INFO L215 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] [2024-11-18 16:21:33,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:21:33,451 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:33,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:33,452 INFO L85 PathProgramCache]: Analyzing trace with hash 679088801, now seen corresponding path program 1 times [2024-11-18 16:21:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:33,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070730944] [2024-11-18 16:21:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:33,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:34,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:34,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070730944] [2024-11-18 16:21:34,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070730944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:34,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:34,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:34,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467296075] [2024-11-18 16:21:34,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:34,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:34,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:34,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:34,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:34,092 INFO L87 Difference]: Start difference. First operand 76453 states and 175867 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:46,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:46,196 INFO L93 Difference]: Finished difference Result 244046 states and 667702 transitions. [2024-11-18 16:21:46,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:46,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 [2024-11-18 16:21:46,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted.