./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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-803cd42-m [2024-11-22 04:07:30,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:07:30,258 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:07:30,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:07:30,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:07:30,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:07:30,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:07:30,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:07:30,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:07:30,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:07:30,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:07:30,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:07:30,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:07:30,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:07:30,291 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:07:30,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:07:30,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:07:30,292 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:07:30,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:07:30,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:07:30,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:07:30,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:07:30,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:07:30,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:07:30,295 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:07:30,295 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:07:30,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:07:30,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:07:30,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:07:30,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:07:30,296 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:07:30,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:07:30,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:07:30,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:07:30,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:07:30,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:07:30,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:07:30,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:07:30,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:07:30,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:07:30,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:07:30,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:07:30,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b9ed7c85c1e945b329b46ea2facde1ef0195f46b3e9e9585453dabdeb816de5 [2024-11-22 04:07:30,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:07:30,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:07:30,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:07:30,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:07:30,529 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:07:30,530 INFO L431 ainManager$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 [2024-11-22 04:07:31,766 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:07:31,951 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:07:31,955 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-1.c [2024-11-22 04:07:31,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1236a9e/8c1044563cad4b3380e3009d7628fb79/FLAG533627b55 [2024-11-22 04:07:31,986 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b1236a9e/8c1044563cad4b3380e3009d7628fb79 [2024-11-22 04:07:31,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:07:31,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:07:31,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:07:31,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:07:31,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:07:31,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:07:31" (1/1) ... [2024-11-22 04:07:31,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432b2780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:31, skipping insertion in model container [2024-11-22 04:07:32,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:07:31" (1/1) ... [2024-11-22 04:07:32,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:07:32,261 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] [2024-11-22 04:07:32,315 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] [2024-11-22 04:07:32,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:07:32,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:07:32,385 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] [2024-11-22 04:07:32,400 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] [2024-11-22 04:07:32,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:07:32,458 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:07:32,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32 WrapperNode [2024-11-22 04:07:32,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:07:32,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:07:32,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:07:32,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:07:32,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,514 INFO L138 Inliner]: procedures = 65, calls = 76, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 686 [2024-11-22 04:07:32,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:07:32,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:07:32,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:07:32,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:07:32,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,546 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]. [2024-11-22 04:07:32,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:07:32,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:07:32,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:07:32,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:07:32,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (1/1) ... [2024-11-22 04:07:32,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:07:32,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:07:32,622 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) [2024-11-22 04:07:32,624 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 [2024-11-22 04:07:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:07:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:07:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:07:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-22 04:07:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-22 04:07:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:07:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:07:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:07:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:07:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-22 04:07:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-22 04:07:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:07:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:07:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:07:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:07:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-22 04:07:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-22 04:07:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-22 04:07:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-22 04:07:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-22 04:07:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-22 04:07:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:07:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:07:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:07:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:07:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:07:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-22 04:07:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-22 04:07:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:07:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:07:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:07:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:07:32,763 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:07:32,766 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:07:33,286 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-22 04:07:33,286 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; [2024-11-22 04:07:33,393 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-11-22 04:07:33,393 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:07:33,417 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:07:33,419 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-22 04:07:33,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:07:33 BoogieIcfgContainer [2024-11-22 04:07:33,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:07:33,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:07:33,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:07:33,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:07:33,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:07:31" (1/3) ... [2024-11-22 04:07:33,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cb4a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:07:33, skipping insertion in model container [2024-11-22 04:07:33,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:07:32" (2/3) ... [2024-11-22 04:07:33,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cb4a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:07:33, skipping insertion in model container [2024-11-22 04:07:33,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:07:33" (3/3) ... [2024-11-22 04:07:33,433 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.05.cil-1.c [2024-11-22 04:07:33,450 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:07:33,450 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:07:33,517 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:07:33,523 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;@f1f8500, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:07:33,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:07:33,530 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) [2024-11-22 04:07:33,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:07:33,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:33,544 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] [2024-11-22 04:07:33,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:33,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:33,550 INFO L85 PathProgramCache]: Analyzing trace with hash 341992279, now seen corresponding path program 1 times [2024-11-22 04:07:33,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:33,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467764367] [2024-11-22 04:07:33,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:33,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:33,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:33,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467764367] [2024-11-22 04:07:33,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467764367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:33,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:33,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:33,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741287479] [2024-11-22 04:07:33,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:33,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:33,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:33,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:33,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:33,953 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) [2024-11-22 04:07:34,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:34,637 INFO L93 Difference]: Finished difference Result 758 states and 1173 transitions. [2024-11-22 04:07:34,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:07:34,639 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 [2024-11-22 04:07:34,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:34,654 INFO L225 Difference]: With dead ends: 758 [2024-11-22 04:07:34,655 INFO L226 Difference]: Without dead ends: 439 [2024-11-22 04:07:34,660 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 [2024-11-22 04:07:34,666 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 380 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:34,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1067 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:07:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-22 04:07:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 432. [2024-11-22 04:07:34,736 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) [2024-11-22 04:07:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 630 transitions. [2024-11-22 04:07:34,740 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 630 transitions. Word has length 65 [2024-11-22 04:07:34,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:34,741 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 630 transitions. [2024-11-22 04:07:34,741 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) [2024-11-22 04:07:34,741 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 630 transitions. [2024-11-22 04:07:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:07:34,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:34,744 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] [2024-11-22 04:07:34,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:07:34,744 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:34,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:34,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2020880919, now seen corresponding path program 1 times [2024-11-22 04:07:34,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:34,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216975262] [2024-11-22 04:07:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:34,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:34,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216975262] [2024-11-22 04:07:34,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216975262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:34,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:34,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:34,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952086410] [2024-11-22 04:07:34,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:34,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:34,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:34,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:34,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:34,904 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) [2024-11-22 04:07:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:35,603 INFO L93 Difference]: Finished difference Result 799 states and 1145 transitions. [2024-11-22 04:07:35,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:35,603 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 [2024-11-22 04:07:35,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:35,610 INFO L225 Difference]: With dead ends: 799 [2024-11-22 04:07:35,611 INFO L226 Difference]: Without dead ends: 590 [2024-11-22 04:07:35,612 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 [2024-11-22 04:07:35,614 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 678 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:35,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1348 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 04:07:35,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-22 04:07:35,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 544. [2024-11-22 04:07:35,673 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) [2024-11-22 04:07:35,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 790 transitions. [2024-11-22 04:07:35,678 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 790 transitions. Word has length 65 [2024-11-22 04:07:35,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:35,679 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 790 transitions. [2024-11-22 04:07:35,679 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) [2024-11-22 04:07:35,680 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 790 transitions. [2024-11-22 04:07:35,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:07:35,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:35,684 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] [2024-11-22 04:07:35,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:07:35,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:35,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:35,689 INFO L85 PathProgramCache]: Analyzing trace with hash -7705191, now seen corresponding path program 1 times [2024-11-22 04:07:35,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:35,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580209097] [2024-11-22 04:07:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:35,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:35,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:35,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:35,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580209097] [2024-11-22 04:07:35,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580209097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:35,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:35,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:07:35,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728340779] [2024-11-22 04:07:35,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:35,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:07:35,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:35,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:07:35,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:35,757 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) [2024-11-22 04:07:35,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:35,938 INFO L93 Difference]: Finished difference Result 1450 states and 2072 transitions. [2024-11-22 04:07:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:07:35,938 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 [2024-11-22 04:07:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:35,947 INFO L225 Difference]: With dead ends: 1450 [2024-11-22 04:07:35,948 INFO L226 Difference]: Without dead ends: 1135 [2024-11-22 04:07:35,951 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 [2024-11-22 04:07:35,953 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:35,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1114 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:07:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-22 04:07:36,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1112. [2024-11-22 04:07:36,013 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) [2024-11-22 04:07:36,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1561 transitions. [2024-11-22 04:07:36,018 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1561 transitions. Word has length 65 [2024-11-22 04:07:36,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:36,019 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1561 transitions. [2024-11-22 04:07:36,019 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) [2024-11-22 04:07:36,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1561 transitions. [2024-11-22 04:07:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:07:36,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:36,021 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] [2024-11-22 04:07:36,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:07:36,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:36,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:36,022 INFO L85 PathProgramCache]: Analyzing trace with hash 767651760, now seen corresponding path program 1 times [2024-11-22 04:07:36,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:36,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014753790] [2024-11-22 04:07:36,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:36,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:36,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:36,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014753790] [2024-11-22 04:07:36,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014753790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:36,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:36,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598114441] [2024-11-22 04:07:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:36,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:36,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:36,081 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) [2024-11-22 04:07:36,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:36,144 INFO L93 Difference]: Finished difference Result 2015 states and 2825 transitions. [2024-11-22 04:07:36,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:07:36,145 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 [2024-11-22 04:07:36,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:36,150 INFO L225 Difference]: With dead ends: 2015 [2024-11-22 04:07:36,151 INFO L226 Difference]: Without dead ends: 1132 [2024-11-22 04:07:36,153 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 [2024-11-22 04:07:36,154 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 [2024-11-22 04:07:36,154 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] [2024-11-22 04:07:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-22 04:07:36,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132. [2024-11-22 04:07:36,227 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) [2024-11-22 04:07:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1579 transitions. [2024-11-22 04:07:36,232 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1579 transitions. Word has length 66 [2024-11-22 04:07:36,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:36,233 INFO L471 AbstractCegarLoop]: Abstraction has 1132 states and 1579 transitions. [2024-11-22 04:07:36,233 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) [2024-11-22 04:07:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1579 transitions. [2024-11-22 04:07:36,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:07:36,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:36,235 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] [2024-11-22 04:07:36,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:07:36,235 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:36,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:36,236 INFO L85 PathProgramCache]: Analyzing trace with hash -261707538, now seen corresponding path program 1 times [2024-11-22 04:07:36,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:36,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619745824] [2024-11-22 04:07:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:36,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:36,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:36,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619745824] [2024-11-22 04:07:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619745824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:36,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:36,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:36,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635721847] [2024-11-22 04:07:36,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:36,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:36,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:36,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:36,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:36,296 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) [2024-11-22 04:07:36,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:36,788 INFO L93 Difference]: Finished difference Result 3693 states and 5115 transitions. [2024-11-22 04:07:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 04:07:36,788 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 [2024-11-22 04:07:36,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:36,795 INFO L225 Difference]: With dead ends: 3693 [2024-11-22 04:07:36,795 INFO L226 Difference]: Without dead ends: 1428 [2024-11-22 04:07:36,799 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 [2024-11-22 04:07:36,799 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 1432 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:36,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1441 Valid, 2157 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:36,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-11-22 04:07:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1048. [2024-11-22 04:07:36,851 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) [2024-11-22 04:07:36,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1424 transitions. [2024-11-22 04:07:36,856 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1424 transitions. Word has length 66 [2024-11-22 04:07:36,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:36,858 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1424 transitions. [2024-11-22 04:07:36,859 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) [2024-11-22 04:07:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1424 transitions. [2024-11-22 04:07:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 04:07:36,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:36,862 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] [2024-11-22 04:07:36,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:07:36,862 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:36,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:36,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1668124653, now seen corresponding path program 1 times [2024-11-22 04:07:36,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:36,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556607230] [2024-11-22 04:07:36,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:36,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:36,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:36,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:36,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556607230] [2024-11-22 04:07:36,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556607230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:36,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:36,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:36,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600214176] [2024-11-22 04:07:36,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:36,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:36,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:36,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:36,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:36,944 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) [2024-11-22 04:07:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:37,019 INFO L93 Difference]: Finished difference Result 1912 states and 2572 transitions. [2024-11-22 04:07:37,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:07:37,021 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 [2024-11-22 04:07:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:37,027 INFO L225 Difference]: With dead ends: 1912 [2024-11-22 04:07:37,027 INFO L226 Difference]: Without dead ends: 1093 [2024-11-22 04:07:37,029 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 [2024-11-22 04:07:37,031 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 [2024-11-22 04:07:37,031 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] [2024-11-22 04:07:37,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-22 04:07:37,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2024-11-22 04:07:37,091 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) [2024-11-22 04:07:37,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1469 transitions. [2024-11-22 04:07:37,097 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1469 transitions. Word has length 67 [2024-11-22 04:07:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:37,099 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1469 transitions. [2024-11-22 04:07:37,099 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) [2024-11-22 04:07:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1469 transitions. [2024-11-22 04:07:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 04:07:37,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:37,101 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] [2024-11-22 04:07:37,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:07:37,102 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:37,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1240639249, now seen corresponding path program 1 times [2024-11-22 04:07:37,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:37,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437375496] [2024-11-22 04:07:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:37,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:37,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:37,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437375496] [2024-11-22 04:07:37,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437375496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:37,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:37,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:37,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947220019] [2024-11-22 04:07:37,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:37,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:37,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:37,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:37,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:37,231 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) [2024-11-22 04:07:37,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:37,859 INFO L93 Difference]: Finished difference Result 2009 states and 2638 transitions. [2024-11-22 04:07:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 04:07:37,859 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 [2024-11-22 04:07:37,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:37,865 INFO L225 Difference]: With dead ends: 2009 [2024-11-22 04:07:37,866 INFO L226 Difference]: Without dead ends: 1232 [2024-11-22 04:07:37,867 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 [2024-11-22 04:07:37,869 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 677 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:37,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1048 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:07:37,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-11-22 04:07:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1102. [2024-11-22 04:07:37,911 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) [2024-11-22 04:07:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1472 transitions. [2024-11-22 04:07:37,917 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1472 transitions. Word has length 67 [2024-11-22 04:07:37,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:37,917 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1472 transitions. [2024-11-22 04:07:37,917 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) [2024-11-22 04:07:37,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1472 transitions. [2024-11-22 04:07:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 04:07:37,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:37,921 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] [2024-11-22 04:07:37,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:07:37,921 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:37,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1374652755, now seen corresponding path program 1 times [2024-11-22 04:07:37,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:37,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245830782] [2024-11-22 04:07:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:37,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:37,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:37,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245830782] [2024-11-22 04:07:37,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245830782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:37,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:37,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:07:37,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622217403] [2024-11-22 04:07:37,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:37,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:07:37,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:37,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:07:37,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:07:37,974 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) [2024-11-22 04:07:38,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:38,331 INFO L93 Difference]: Finished difference Result 2831 states and 3745 transitions. [2024-11-22 04:07:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:07:38,332 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 [2024-11-22 04:07:38,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:38,341 INFO L225 Difference]: With dead ends: 2831 [2024-11-22 04:07:38,341 INFO L226 Difference]: Without dead ends: 1961 [2024-11-22 04:07:38,343 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 [2024-11-22 04:07:38,344 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 629 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-11-22 04:07:38,345 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] [2024-11-22 04:07:38,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2024-11-22 04:07:38,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1951. [2024-11-22 04:07:38,415 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) [2024-11-22 04:07:38,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2576 transitions. [2024-11-22 04:07:38,424 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2576 transitions. Word has length 67 [2024-11-22 04:07:38,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:38,425 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 2576 transitions. [2024-11-22 04:07:38,425 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) [2024-11-22 04:07:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2576 transitions. [2024-11-22 04:07:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:07:38,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:38,428 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] [2024-11-22 04:07:38,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:07:38,430 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:38,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:38,431 INFO L85 PathProgramCache]: Analyzing trace with hash -85322935, now seen corresponding path program 1 times [2024-11-22 04:07:38,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:38,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067907554] [2024-11-22 04:07:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:38,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:38,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:38,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067907554] [2024-11-22 04:07:38,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067907554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:38,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:38,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:07:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428898177] [2024-11-22 04:07:38,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:38,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:07:38,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:38,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:07:38,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:38,462 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) [2024-11-22 04:07:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:38,547 INFO L93 Difference]: Finished difference Result 3534 states and 4703 transitions. [2024-11-22 04:07:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:07:38,548 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 [2024-11-22 04:07:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:38,551 INFO L225 Difference]: With dead ends: 3534 [2024-11-22 04:07:38,551 INFO L226 Difference]: Without dead ends: 209 [2024-11-22 04:07:38,557 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 [2024-11-22 04:07:38,557 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 [2024-11-22 04:07:38,557 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] [2024-11-22 04:07:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-22 04:07:38,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-22 04:07:38,563 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) [2024-11-22 04:07:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 315 transitions. [2024-11-22 04:07:38,565 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 315 transitions. Word has length 68 [2024-11-22 04:07:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:38,565 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 315 transitions. [2024-11-22 04:07:38,566 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) [2024-11-22 04:07:38,566 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 315 transitions. [2024-11-22 04:07:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:38,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:38,566 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] [2024-11-22 04:07:38,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:07:38,567 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:38,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1164243945, now seen corresponding path program 1 times [2024-11-22 04:07:38,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:38,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105177945] [2024-11-22 04:07:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:38,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:38,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:38,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105177945] [2024-11-22 04:07:38,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105177945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:38,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:38,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:07:38,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853013696] [2024-11-22 04:07:38,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:38,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:07:38,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:38,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:07:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:07:38,595 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) [2024-11-22 04:07:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:38,604 INFO L93 Difference]: Finished difference Result 410 states and 619 transitions. [2024-11-22 04:07:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:07:38,605 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 [2024-11-22 04:07:38,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:38,607 INFO L225 Difference]: With dead ends: 410 [2024-11-22 04:07:38,607 INFO L226 Difference]: Without dead ends: 209 [2024-11-22 04:07:38,608 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 [2024-11-22 04:07:38,608 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 [2024-11-22 04:07:38,608 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] [2024-11-22 04:07:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-22 04:07:38,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-22 04:07:38,613 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) [2024-11-22 04:07:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 314 transitions. [2024-11-22 04:07:38,615 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 314 transitions. Word has length 101 [2024-11-22 04:07:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:38,615 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 314 transitions. [2024-11-22 04:07:38,616 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) [2024-11-22 04:07:38,616 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 314 transitions. [2024-11-22 04:07:38,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:38,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:38,616 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] [2024-11-22 04:07:38,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:07:38,616 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:38,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:38,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1135743655, now seen corresponding path program 1 times [2024-11-22 04:07:38,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:38,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301464787] [2024-11-22 04:07:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:38,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:38,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:38,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301464787] [2024-11-22 04:07:38,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301464787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:38,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:38,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:07:38,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234622270] [2024-11-22 04:07:38,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:38,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:07:38,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:38,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:07:38,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:07:38,673 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) [2024-11-22 04:07:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:38,983 INFO L93 Difference]: Finished difference Result 619 states and 942 transitions. [2024-11-22 04:07:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:07:38,984 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 [2024-11-22 04:07:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:38,987 INFO L225 Difference]: With dead ends: 619 [2024-11-22 04:07:38,987 INFO L226 Difference]: Without dead ends: 424 [2024-11-22 04:07:38,988 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 [2024-11-22 04:07:38,989 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 [2024-11-22 04:07:38,989 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] [2024-11-22 04:07:38,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-22 04:07:39,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 409. [2024-11-22 04:07:39,008 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) [2024-11-22 04:07:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 618 transitions. [2024-11-22 04:07:39,011 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 618 transitions. Word has length 101 [2024-11-22 04:07:39,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:39,012 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 618 transitions. [2024-11-22 04:07:39,012 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) [2024-11-22 04:07:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 618 transitions. [2024-11-22 04:07:39,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:39,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:39,013 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] [2024-11-22 04:07:39,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:07:39,014 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:39,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:39,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1442339037, now seen corresponding path program 1 times [2024-11-22 04:07:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:39,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411791116] [2024-11-22 04:07:39,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:39,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:39,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:39,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411791116] [2024-11-22 04:07:39,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411791116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:39,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:39,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:39,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744339272] [2024-11-22 04:07:39,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:39,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:39,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:39,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:39,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:39,105 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) [2024-11-22 04:07:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:39,483 INFO L93 Difference]: Finished difference Result 1049 states and 1601 transitions. [2024-11-22 04:07:39,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:39,484 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 [2024-11-22 04:07:39,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:39,488 INFO L225 Difference]: With dead ends: 1049 [2024-11-22 04:07:39,488 INFO L226 Difference]: Without dead ends: 654 [2024-11-22 04:07:39,489 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 [2024-11-22 04:07:39,490 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 555 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:39,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1609 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-22 04:07:39,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 595. [2024-11-22 04:07:39,508 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) [2024-11-22 04:07:39,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 896 transitions. [2024-11-22 04:07:39,511 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 896 transitions. Word has length 101 [2024-11-22 04:07:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:39,511 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 896 transitions. [2024-11-22 04:07:39,511 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) [2024-11-22 04:07:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 896 transitions. [2024-11-22 04:07:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:39,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:39,513 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] [2024-11-22 04:07:39,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:07:39,513 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:39,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:39,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1527772065, now seen corresponding path program 1 times [2024-11-22 04:07:39,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:39,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848722581] [2024-11-22 04:07:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:39,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:39,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:39,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848722581] [2024-11-22 04:07:39,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848722581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:39,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:39,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:39,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480971697] [2024-11-22 04:07:39,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:39,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:39,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:39,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:39,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:39,624 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) [2024-11-22 04:07:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:40,019 INFO L93 Difference]: Finished difference Result 1632 states and 2484 transitions. [2024-11-22 04:07:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:40,019 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 [2024-11-22 04:07:40,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:40,024 INFO L225 Difference]: With dead ends: 1632 [2024-11-22 04:07:40,024 INFO L226 Difference]: Without dead ends: 1051 [2024-11-22 04:07:40,026 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 [2024-11-22 04:07:40,026 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 550 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:40,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 1593 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:40,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2024-11-22 04:07:40,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 986. [2024-11-22 04:07:40,070 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) [2024-11-22 04:07:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1489 transitions. [2024-11-22 04:07:40,074 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1489 transitions. Word has length 101 [2024-11-22 04:07:40,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:40,074 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1489 transitions. [2024-11-22 04:07:40,074 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) [2024-11-22 04:07:40,075 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1489 transitions. [2024-11-22 04:07:40,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:40,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:40,076 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] [2024-11-22 04:07:40,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:07:40,076 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:40,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:40,076 INFO L85 PathProgramCache]: Analyzing trace with hash 38985885, now seen corresponding path program 1 times [2024-11-22 04:07:40,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:40,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660913465] [2024-11-22 04:07:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:40,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:40,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:40,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660913465] [2024-11-22 04:07:40,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660913465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:40,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:40,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:40,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626471957] [2024-11-22 04:07:40,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:40,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:40,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:40,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:40,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:40,161 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) [2024-11-22 04:07:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:40,598 INFO L93 Difference]: Finished difference Result 2869 states and 4395 transitions. [2024-11-22 04:07:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:40,598 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 [2024-11-22 04:07:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:40,608 INFO L225 Difference]: With dead ends: 2869 [2024-11-22 04:07:40,608 INFO L226 Difference]: Without dead ends: 1897 [2024-11-22 04:07:40,610 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 [2024-11-22 04:07:40,611 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 545 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:40,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1581 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:40,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2024-11-22 04:07:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1819. [2024-11-22 04:07:40,700 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) [2024-11-22 04:07:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2781 transitions. [2024-11-22 04:07:40,706 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2781 transitions. Word has length 101 [2024-11-22 04:07:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:40,707 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2781 transitions. [2024-11-22 04:07:40,707 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) [2024-11-22 04:07:40,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2781 transitions. [2024-11-22 04:07:40,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:40,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:40,709 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] [2024-11-22 04:07:40,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:07:40,709 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:40,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:40,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1018852193, now seen corresponding path program 1 times [2024-11-22 04:07:40,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:40,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264827732] [2024-11-22 04:07:40,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:40,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:40,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:40,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264827732] [2024-11-22 04:07:40,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264827732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:40,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:40,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:40,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981640940] [2024-11-22 04:07:40,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:40,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:40,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:40,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:40,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:40,796 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) [2024-11-22 04:07:41,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:41,283 INFO L93 Difference]: Finished difference Result 5528 states and 8629 transitions. [2024-11-22 04:07:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:41,283 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 [2024-11-22 04:07:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:41,300 INFO L225 Difference]: With dead ends: 5528 [2024-11-22 04:07:41,300 INFO L226 Difference]: Without dead ends: 3723 [2024-11-22 04:07:41,307 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 [2024-11-22 04:07:41,307 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:41,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1102 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:41,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2024-11-22 04:07:41,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3620. [2024-11-22 04:07:41,459 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) [2024-11-22 04:07:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 5673 transitions. [2024-11-22 04:07:41,472 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 5673 transitions. Word has length 101 [2024-11-22 04:07:41,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:41,472 INFO L471 AbstractCegarLoop]: Abstraction has 3620 states and 5673 transitions. [2024-11-22 04:07:41,472 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) [2024-11-22 04:07:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5673 transitions. [2024-11-22 04:07:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:41,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:41,474 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] [2024-11-22 04:07:41,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:07:41,475 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:41,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2133612637, now seen corresponding path program 1 times [2024-11-22 04:07:41,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:41,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58822118] [2024-11-22 04:07:41,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:41,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:41,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:41,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58822118] [2024-11-22 04:07:41,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58822118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:41,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:41,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:41,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659028363] [2024-11-22 04:07:41,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:41,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:41,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:41,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:41,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:41,576 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) [2024-11-22 04:07:42,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:42,279 INFO L93 Difference]: Finished difference Result 11967 states and 19272 transitions. [2024-11-22 04:07:42,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:42,279 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 [2024-11-22 04:07:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:42,317 INFO L225 Difference]: With dead ends: 11967 [2024-11-22 04:07:42,317 INFO L226 Difference]: Without dead ends: 8361 [2024-11-22 04:07:42,335 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 [2024-11-22 04:07:42,336 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:42,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1544 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:07:42,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8361 states. [2024-11-22 04:07:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8361 to 7525. [2024-11-22 04:07:42,816 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) [2024-11-22 04:07:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7525 states to 7525 states and 12309 transitions. [2024-11-22 04:07:42,850 INFO L78 Accepts]: Start accepts. Automaton has 7525 states and 12309 transitions. Word has length 101 [2024-11-22 04:07:42,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:42,850 INFO L471 AbstractCegarLoop]: Abstraction has 7525 states and 12309 transitions. [2024-11-22 04:07:42,851 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) [2024-11-22 04:07:42,851 INFO L276 IsEmpty]: Start isEmpty. Operand 7525 states and 12309 transitions. [2024-11-22 04:07:42,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:42,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:42,857 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] [2024-11-22 04:07:42,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:07:42,858 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:42,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1921114913, now seen corresponding path program 1 times [2024-11-22 04:07:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:42,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578464004] [2024-11-22 04:07:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:42,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:42,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:42,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:42,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578464004] [2024-11-22 04:07:42,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578464004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:42,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:42,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:42,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377071110] [2024-11-22 04:07:42,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:42,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:42,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:42,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:42,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:42,969 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) [2024-11-22 04:07:43,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:43,997 INFO L93 Difference]: Finished difference Result 25034 states and 42742 transitions. [2024-11-22 04:07:43,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:43,998 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 [2024-11-22 04:07:43,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:44,073 INFO L225 Difference]: With dead ends: 25034 [2024-11-22 04:07:44,073 INFO L226 Difference]: Without dead ends: 17523 [2024-11-22 04:07:44,097 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 [2024-11-22 04:07:44,098 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 663 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:44,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1528 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:07:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2024-11-22 04:07:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 16018. [2024-11-22 04:07:45,166 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) [2024-11-22 04:07:45,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16018 states to 16018 states and 28077 transitions. [2024-11-22 04:07:45,235 INFO L78 Accepts]: Start accepts. Automaton has 16018 states and 28077 transitions. Word has length 101 [2024-11-22 04:07:45,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:45,235 INFO L471 AbstractCegarLoop]: Abstraction has 16018 states and 28077 transitions. [2024-11-22 04:07:45,236 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) [2024-11-22 04:07:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 16018 states and 28077 transitions. [2024-11-22 04:07:45,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:45,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:45,244 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] [2024-11-22 04:07:45,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:07:45,245 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:45,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:45,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1082081251, now seen corresponding path program 1 times [2024-11-22 04:07:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:45,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818733443] [2024-11-22 04:07:45,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:45,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:45,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:45,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818733443] [2024-11-22 04:07:45,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818733443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:45,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:45,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:45,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142400620] [2024-11-22 04:07:45,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:45,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:45,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:45,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:45,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:45,343 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) [2024-11-22 04:07:47,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:47,248 INFO L93 Difference]: Finished difference Result 53465 states and 100268 transitions. [2024-11-22 04:07:47,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:47,249 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 [2024-11-22 04:07:47,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:47,409 INFO L225 Difference]: With dead ends: 53465 [2024-11-22 04:07:47,409 INFO L226 Difference]: Without dead ends: 37461 [2024-11-22 04:07:47,463 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 [2024-11-22 04:07:47,464 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 558 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:47,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1520 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:07:47,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37461 states. [2024-11-22 04:07:49,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37461 to 35255. [2024-11-22 04:07:49,954 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) [2024-11-22 04:07:50,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35255 states to 35255 states and 68769 transitions. [2024-11-22 04:07:50,134 INFO L78 Accepts]: Start accepts. Automaton has 35255 states and 68769 transitions. Word has length 101 [2024-11-22 04:07:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:07:50,135 INFO L471 AbstractCegarLoop]: Abstraction has 35255 states and 68769 transitions. [2024-11-22 04:07:50,135 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) [2024-11-22 04:07:50,135 INFO L276 IsEmpty]: Start isEmpty. Operand 35255 states and 68769 transitions. [2024-11-22 04:07:50,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:07:50,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:07:50,150 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] [2024-11-22 04:07:50,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:07:50,151 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:07:50,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:07:50,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1055015649, now seen corresponding path program 1 times [2024-11-22 04:07:50,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:07:50,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53754626] [2024-11-22 04:07:50,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:07:50,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:07:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:07:50,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:07:50,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:07:50,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53754626] [2024-11-22 04:07:50,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53754626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:07:50,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:07:50,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:07:50,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418523057] [2024-11-22 04:07:50,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:07:50,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:07:50,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:07:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:07:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:07:50,223 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) [2024-11-22 04:07:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:07:54,808 INFO L93 Difference]: Finished difference Result 114022 states and 248302 transitions. [2024-11-22 04:07:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:07:54,810 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 [2024-11-22 04:07:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:07:55,292 INFO L225 Difference]: With dead ends: 114022 [2024-11-22 04:07:55,292 INFO L226 Difference]: Without dead ends: 78781 [2024-11-22 04:07:55,419 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 [2024-11-22 04:07:55,419 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 561 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:07:55,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1494 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:07:55,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78781 states. [2024-11-22 04:08:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78781 to 76453. [2024-11-22 04:08:01,006 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) [2024-11-22 04:08:01,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76453 states to 76453 states and 175867 transitions. [2024-11-22 04:08:01,843 INFO L78 Accepts]: Start accepts. Automaton has 76453 states and 175867 transitions. Word has length 101 [2024-11-22 04:08:01,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:08:01,844 INFO L471 AbstractCegarLoop]: Abstraction has 76453 states and 175867 transitions. [2024-11-22 04:08:01,844 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) [2024-11-22 04:08:01,844 INFO L276 IsEmpty]: Start isEmpty. Operand 76453 states and 175867 transitions. [2024-11-22 04:08:01,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 04:08:01,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:08:01,877 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] [2024-11-22 04:08:01,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:08:01,878 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:08:01,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:08:01,879 INFO L85 PathProgramCache]: Analyzing trace with hash 679088801, now seen corresponding path program 1 times [2024-11-22 04:08:01,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:08:01,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520878972] [2024-11-22 04:08:01,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:08:01,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:08:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:08:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:08:01,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:08:01,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520878972] [2024-11-22 04:08:01,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520878972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:08:01,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:08:01,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:08:01,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727641714] [2024-11-22 04:08:01,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:08:01,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:08:01,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:08:01,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:08:01,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:08:01,974 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)