./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.10.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.10.cil-2.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 f9db8f562e00e8e2c77bd4109a87025a2d9cfdc1d504bc43872dc3be0602b46a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:21:45,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:21:45,098 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:21:45,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:21:45,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:21:45,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:21:45,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:21:45,152 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:21:45,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:21:45,154 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:21:45,155 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:21:45,155 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:21:45,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:21:45,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:21:45,158 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:21:45,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:21:45,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:21:45,159 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:21:45,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:21:45,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:21:45,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:21:45,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:21:45,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:21:45,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:21:45,164 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:21:45,164 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:21:45,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:21:45,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:21:45,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:21:45,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:21:45,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:21:45,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:21:45,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:21:45,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:21:45,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:21:45,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:21:45,167 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:21:45,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:21:45,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:21:45,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:21:45,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:21:45,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:21:45,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9db8f562e00e8e2c77bd4109a87025a2d9cfdc1d504bc43872dc3be0602b46a [2024-11-18 16:21:45,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:21:45,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:21:45,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:21:45,479 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:21:45,480 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:21:45,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.10.cil-2.c [2024-11-18 16:21:46,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:21:47,219 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:21:47,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.10.cil-2.c [2024-11-18 16:21:47,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67596ce45/615ca0d1f4034c6b8a476fee1264398b/FLAG9d4d48cc5 [2024-11-18 16:21:47,536 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67596ce45/615ca0d1f4034c6b8a476fee1264398b [2024-11-18 16:21:47,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:21:47,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:21:47,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:21:47,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:21:47,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:21:47,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:21:47" (1/1) ... [2024-11-18 16:21:47,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef1bbb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:47, skipping insertion in model container [2024-11-18 16:21:47,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:21:47" (1/1) ... [2024-11-18 16:21:47,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:21:47,835 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.10.cil-2.c[911,924] [2024-11-18 16:21:47,919 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.10.cil-2.c[8416,8429] [2024-11-18 16:21:48,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:21:48,072 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:21:48,088 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.10.cil-2.c[911,924] [2024-11-18 16:21:48,126 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.10.cil-2.c[8416,8429] [2024-11-18 16:21:48,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:21:48,198 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:21:48,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48 WrapperNode [2024-11-18 16:21:48,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:21:48,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:21:48,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:21:48,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:21:48,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,294 INFO L138 Inliner]: procedures = 75, calls = 91, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 986 [2024-11-18 16:21:48,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:21:48,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:21:48,296 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:21:48,296 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:21:48,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,316 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,337 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 16:21:48,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:21:48,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:21:48,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:21:48,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:21:48,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (1/1) ... [2024-11-18 16:21:48,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:21:48,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:21:48,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 16:21:48,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 16:21:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:21:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 16:21:48,488 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 16:21:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-18 16:21:48,490 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-18 16:21:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-18 16:21:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-18 16:21:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-18 16:21:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-18 16:21:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-18 16:21:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-18 16:21:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-18 16:21:48,491 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-18 16:21:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-18 16:21:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-18 16:21:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-18 16:21:48,492 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-18 16:21:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-18 16:21:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-18 16:21:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-18 16:21:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-18 16:21:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-18 16:21:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-18 16:21:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:21:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-18 16:21:48,494 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-18 16:21:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-18 16:21:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-18 16:21:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:21:48,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:21:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-18 16:21:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-18 16:21:48,650 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:21:48,653 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:21:49,477 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-18 16:21:49,478 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-18 16:21:49,675 INFO L? ?]: Removed 118 outVars from TransFormulas that were not future-live. [2024-11-18 16:21:49,675 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:21:49,708 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:21:49,708 INFO L316 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-18 16:21:49,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:21:49 BoogieIcfgContainer [2024-11-18 16:21:49,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:21:49,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:21:49,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:21:49,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:21:49,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:21:47" (1/3) ... [2024-11-18 16:21:49,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480fba71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:21:49, skipping insertion in model container [2024-11-18 16:21:49,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:21:48" (2/3) ... [2024-11-18 16:21:49,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480fba71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:21:49, skipping insertion in model container [2024-11-18 16:21:49,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:21:49" (3/3) ... [2024-11-18 16:21:49,717 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.10.cil-2.c [2024-11-18 16:21:49,734 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:21:49,735 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:21:49,811 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:21:49,817 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;@15b300cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:21:49,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:21:49,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 460 states, 403 states have (on average 1.6129032258064515) internal successors, (650), 409 states have internal predecessors, (650), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-18 16:21:49,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:21:49,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:49,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:49,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:49,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:49,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1864126348, now seen corresponding path program 1 times [2024-11-18 16:21:49,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:49,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029154134] [2024-11-18 16:21:49,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:49,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:50,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:50,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029154134] [2024-11-18 16:21:50,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029154134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:50,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:50,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:21:50,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163248780] [2024-11-18 16:21:50,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:50,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:21:50,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:50,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:21:50,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:21:50,432 INFO L87 Difference]: Start difference. First operand has 460 states, 403 states have (on average 1.6129032258064515) internal successors, (650), 409 states have internal predecessors, (650), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:51,600 INFO L93 Difference]: Finished difference Result 1013 states and 1603 transitions. [2024-11-18 16:21:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:21:51,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-18 16:21:51,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:51,618 INFO L225 Difference]: With dead ends: 1013 [2024-11-18 16:21:51,618 INFO L226 Difference]: Without dead ends: 569 [2024-11-18 16:21:51,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:51,627 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 480 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:51,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1482 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 16:21:51,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-18 16:21:51,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 562. [2024-11-18 16:21:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 485 states have (on average 1.5072164948453608) internal successors, (731), 491 states have internal predecessors, (731), 53 states have call successors, (53), 21 states have call predecessors, (53), 22 states have return successors, (56), 52 states have call predecessors, (56), 51 states have call successors, (56) [2024-11-18 16:21:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 840 transitions. [2024-11-18 16:21:51,707 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 840 transitions. Word has length 65 [2024-11-18 16:21:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:51,708 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 840 transitions. [2024-11-18 16:21:51,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:51,708 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 840 transitions. [2024-11-18 16:21:51,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:21:51,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:51,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:51,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:21:51,712 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:51,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:51,713 INFO L85 PathProgramCache]: Analyzing trace with hash -751952308, now seen corresponding path program 1 times [2024-11-18 16:21:51,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:51,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379307234] [2024-11-18 16:21:51,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:51,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:51,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:51,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:51,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379307234] [2024-11-18 16:21:51,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379307234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:51,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:51,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:51,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180488883] [2024-11-18 16:21:51,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:51,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:51,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:51,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:51,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:51,964 INFO L87 Difference]: Start difference. First operand 562 states and 840 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:53,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:53,025 INFO L93 Difference]: Finished difference Result 929 states and 1355 transitions. [2024-11-18 16:21:53,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:53,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-18 16:21:53,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:53,035 INFO L225 Difference]: With dead ends: 929 [2024-11-18 16:21:53,038 INFO L226 Difference]: Without dead ends: 720 [2024-11-18 16:21:53,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:53,041 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 983 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:53,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1753 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 16:21:53,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-18 16:21:53,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 674. [2024-11-18 16:21:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 575 states have (on average 1.4904347826086957) internal successors, (857), 583 states have internal predecessors, (857), 66 states have call successors, (66), 28 states have call predecessors, (66), 31 states have return successors, (77), 66 states have call predecessors, (77), 64 states have call successors, (77) [2024-11-18 16:21:53,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1000 transitions. [2024-11-18 16:21:53,133 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1000 transitions. Word has length 65 [2024-11-18 16:21:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:53,134 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 1000 transitions. [2024-11-18 16:21:53,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:53,135 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1000 transitions. [2024-11-18 16:21:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 16:21:53,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:53,145 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:53,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:21:53,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:53,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1514428878, now seen corresponding path program 1 times [2024-11-18 16:21:53,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:53,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846107680] [2024-11-18 16:21:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:53,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:53,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:53,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846107680] [2024-11-18 16:21:53,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846107680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:53,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:53,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:21:53,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068168983] [2024-11-18 16:21:53,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:53,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:21:53,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:53,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:21:53,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:21:53,258 INFO L87 Difference]: Start difference. First operand 674 states and 1000 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:21:53,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:53,523 INFO L93 Difference]: Finished difference Result 1580 states and 2282 transitions. [2024-11-18 16:21:53,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:21:53,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-18 16:21:53,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:53,532 INFO L225 Difference]: With dead ends: 1580 [2024-11-18 16:21:53,533 INFO L226 Difference]: Without dead ends: 1265 [2024-11-18 16:21:53,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:21:53,536 INFO L432 NwaCegarLoop]: 799 mSDtfsCounter, 779 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:53,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 1523 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:21:53,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2024-11-18 16:21:53,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1242. [2024-11-18 16:21:53,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1033 states have (on average 1.435624394966118) internal successors, (1483), 1049 states have internal predecessors, (1483), 126 states have call successors, (126), 70 states have call predecessors, (126), 81 states have return successors, (162), 126 states have call predecessors, (162), 124 states have call successors, (162) [2024-11-18 16:21:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1771 transitions. [2024-11-18 16:21:53,617 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1771 transitions. Word has length 65 [2024-11-18 16:21:53,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:53,617 INFO L471 AbstractCegarLoop]: Abstraction has 1242 states and 1771 transitions. [2024-11-18 16:21:53,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:21:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1771 transitions. [2024-11-18 16:21:53,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:21:53,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:53,620 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:53,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:21:53,620 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:53,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:53,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1119345987, now seen corresponding path program 1 times [2024-11-18 16:21:53,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:53,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023626968] [2024-11-18 16:21:53,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:53,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:53,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:53,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023626968] [2024-11-18 16:21:53,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023626968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:53,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:53,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:53,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746265917] [2024-11-18 16:21:53,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:53,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:53,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:53,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:53,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:53,711 INFO L87 Difference]: Start difference. First operand 1242 states and 1771 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:53,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:53,804 INFO L93 Difference]: Finished difference Result 2145 states and 3035 transitions. [2024-11-18 16:21:53,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:21:53,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-18 16:21:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:53,815 INFO L225 Difference]: With dead ends: 2145 [2024-11-18 16:21:53,816 INFO L226 Difference]: Without dead ends: 1262 [2024-11-18 16:21:53,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:53,821 INFO L432 NwaCegarLoop]: 679 mSDtfsCounter, 0 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:53,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3389 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:53,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2024-11-18 16:21:53,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1262. [2024-11-18 16:21:53,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1049 states have (on average 1.4242135367016207) internal successors, (1494), 1065 states have internal predecessors, (1494), 126 states have call successors, (126), 70 states have call predecessors, (126), 85 states have return successors, (169), 130 states have call predecessors, (169), 124 states have call successors, (169) [2024-11-18 16:21:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1789 transitions. [2024-11-18 16:21:53,909 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1789 transitions. Word has length 66 [2024-11-18 16:21:53,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:53,911 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 1789 transitions. [2024-11-18 16:21:53,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1789 transitions. [2024-11-18 16:21:53,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 16:21:53,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:53,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:53,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:21:53,914 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:53,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2146262011, now seen corresponding path program 1 times [2024-11-18 16:21:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:53,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770317263] [2024-11-18 16:21:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:54,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:54,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770317263] [2024-11-18 16:21:54,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770317263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:54,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:54,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:54,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565332052] [2024-11-18 16:21:54,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:54,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:54,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:54,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:54,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:54,015 INFO L87 Difference]: Start difference. First operand 1262 states and 1789 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:21:54,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:54,761 INFO L93 Difference]: Finished difference Result 3823 states and 5325 transitions. [2024-11-18 16:21:54,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:21:54,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-18 16:21:54,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:54,771 INFO L225 Difference]: With dead ends: 3823 [2024-11-18 16:21:54,771 INFO L226 Difference]: Without dead ends: 1558 [2024-11-18 16:21:54,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:54,779 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 1832 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:54,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 2766 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:21:54,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2024-11-18 16:21:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1178. [2024-11-18 16:21:54,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 965 states have (on average 1.4) internal successors, (1351), 981 states have internal predecessors, (1351), 126 states have call successors, (126), 70 states have call predecessors, (126), 85 states have return successors, (157), 130 states have call predecessors, (157), 124 states have call successors, (157) [2024-11-18 16:21:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1634 transitions. [2024-11-18 16:21:54,856 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1634 transitions. Word has length 66 [2024-11-18 16:21:54,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:54,857 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1634 transitions. [2024-11-18 16:21:54,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-18 16:21:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1634 transitions. [2024-11-18 16:21:54,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:21:54,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:54,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:54,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:21:54,862 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:54,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:54,862 INFO L85 PathProgramCache]: Analyzing trace with hash 131616625, now seen corresponding path program 1 times [2024-11-18 16:21:54,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:54,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521703490] [2024-11-18 16:21:54,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:54,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:54,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:54,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:54,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521703490] [2024-11-18 16:21:54,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521703490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:54,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:54,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:54,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233363008] [2024-11-18 16:21:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:54,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:54,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:54,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:54,975 INFO L87 Difference]: Start difference. First operand 1178 states and 1634 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:55,057 INFO L93 Difference]: Finished difference Result 2042 states and 2782 transitions. [2024-11-18 16:21:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:21:55,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-18 16:21:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:55,064 INFO L225 Difference]: With dead ends: 2042 [2024-11-18 16:21:55,065 INFO L226 Difference]: Without dead ends: 1223 [2024-11-18 16:21:55,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:55,068 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 0 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:55,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3345 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:55,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2024-11-18 16:21:55,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2024-11-18 16:21:55,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 1001 states have (on average 1.3856143856143857) internal successors, (1387), 1017 states have internal predecessors, (1387), 126 states have call successors, (126), 70 states have call predecessors, (126), 94 states have return successors, (166), 139 states have call predecessors, (166), 124 states have call successors, (166) [2024-11-18 16:21:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1679 transitions. [2024-11-18 16:21:55,142 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1679 transitions. Word has length 67 [2024-11-18 16:21:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:55,143 INFO L471 AbstractCegarLoop]: Abstraction has 1223 states and 1679 transitions. [2024-11-18 16:21:55,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1679 transitions. [2024-11-18 16:21:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:21:55,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:55,145 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:55,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:21:55,145 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:55,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1517820019, now seen corresponding path program 1 times [2024-11-18 16:21:55,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:55,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882494248] [2024-11-18 16:21:55,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:55,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:55,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882494248] [2024-11-18 16:21:55,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882494248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:55,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:55,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:55,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046713723] [2024-11-18 16:21:55,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:55,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:55,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:55,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:55,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:55,327 INFO L87 Difference]: Start difference. First operand 1223 states and 1679 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:56,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:56,401 INFO L93 Difference]: Finished difference Result 2139 states and 2848 transitions. [2024-11-18 16:21:56,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 16:21:56,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-18 16:21:56,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:56,410 INFO L225 Difference]: With dead ends: 2139 [2024-11-18 16:21:56,410 INFO L226 Difference]: Without dead ends: 1362 [2024-11-18 16:21:56,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:21:56,414 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 982 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:56,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 1453 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 16:21:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-11-18 16:21:56,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1232. [2024-11-18 16:21:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1010 states have (on average 1.38019801980198) internal successors, (1394), 1024 states have internal predecessors, (1394), 127 states have call successors, (127), 71 states have call predecessors, (127), 93 states have return successors, (161), 140 states have call predecessors, (161), 125 states have call successors, (161) [2024-11-18 16:21:56,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1682 transitions. [2024-11-18 16:21:56,487 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1682 transitions. Word has length 67 [2024-11-18 16:21:56,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:56,488 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1682 transitions. [2024-11-18 16:21:56,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:56,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1682 transitions. [2024-11-18 16:21:56,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 16:21:56,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:56,490 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:56,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:21:56,490 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:56,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:56,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1383806513, now seen corresponding path program 1 times [2024-11-18 16:21:56,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:56,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574230616] [2024-11-18 16:21:56,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:56,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:56,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:56,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574230616] [2024-11-18 16:21:56,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574230616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:56,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:56,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:21:56,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614927730] [2024-11-18 16:21:56,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:56,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:21:56,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:56,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:21:56,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:21:56,571 INFO L87 Difference]: Start difference. First operand 1232 states and 1682 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:57,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:57,172 INFO L93 Difference]: Finished difference Result 2961 states and 3955 transitions. [2024-11-18 16:21:57,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:21:57,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-18 16:21:57,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:57,186 INFO L225 Difference]: With dead ends: 2961 [2024-11-18 16:21:57,187 INFO L226 Difference]: Without dead ends: 2091 [2024-11-18 16:21:57,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:21:57,192 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 934 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:57,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 740 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:21:57,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2024-11-18 16:21:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2081. [2024-11-18 16:21:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2081 states, 1664 states have (on average 1.3323317307692308) internal successors, (2217), 1691 states have internal predecessors, (2217), 231 states have call successors, (231), 135 states have call predecessors, (231), 184 states have return successors, (338), 261 states have call predecessors, (338), 229 states have call successors, (338) [2024-11-18 16:21:57,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2786 transitions. [2024-11-18 16:21:57,343 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2786 transitions. Word has length 67 [2024-11-18 16:21:57,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:57,344 INFO L471 AbstractCegarLoop]: Abstraction has 2081 states and 2786 transitions. [2024-11-18 16:21:57,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-18 16:21:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2786 transitions. [2024-11-18 16:21:57,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 16:21:57,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:57,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:57,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:21:57,347 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:57,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:57,347 INFO L85 PathProgramCache]: Analyzing trace with hash -472803222, now seen corresponding path program 1 times [2024-11-18 16:21:57,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:57,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271976270] [2024-11-18 16:21:57,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:57,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:57,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:57,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:57,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271976270] [2024-11-18 16:21:57,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271976270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:57,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:57,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:21:57,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137659854] [2024-11-18 16:21:57,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:57,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:21:57,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:57,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:21:57,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:57,393 INFO L87 Difference]: Start difference. First operand 2081 states and 2786 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:57,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:57,491 INFO L93 Difference]: Finished difference Result 3664 states and 4913 transitions. [2024-11-18 16:21:57,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:21:57,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-18 16:21:57,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:57,497 INFO L225 Difference]: With dead ends: 3664 [2024-11-18 16:21:57,497 INFO L226 Difference]: Without dead ends: 339 [2024-11-18 16:21:57,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:57,506 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 638 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:57,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 657 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:57,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-18 16:21:57,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-18 16:21:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 308 states have (on average 1.5487012987012987) internal successors, (477), 309 states have internal predecessors, (477), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-18 16:21:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 525 transitions. [2024-11-18 16:21:57,525 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 525 transitions. Word has length 68 [2024-11-18 16:21:57,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:57,526 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 525 transitions. [2024-11-18 16:21:57,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-18 16:21:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 525 transitions. [2024-11-18 16:21:57,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:21:57,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:57,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:57,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:21:57,528 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:57,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:57,529 INFO L85 PathProgramCache]: Analyzing trace with hash 90631762, now seen corresponding path program 1 times [2024-11-18 16:21:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:57,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285739554] [2024-11-18 16:21:57,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:57,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:57,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:57,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285739554] [2024-11-18 16:21:57,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285739554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:57,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:57,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:21:57,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586169132] [2024-11-18 16:21:57,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:57,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:21:57,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:57,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:21:57,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:57,600 INFO L87 Difference]: Start difference. First operand 339 states and 525 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:57,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:57,648 INFO L93 Difference]: Finished difference Result 670 states and 1039 transitions. [2024-11-18 16:21:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:21:57,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 156 [2024-11-18 16:21:57,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:57,651 INFO L225 Difference]: With dead ends: 670 [2024-11-18 16:21:57,652 INFO L226 Difference]: Without dead ends: 339 [2024-11-18 16:21:57,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:57,653 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 517 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:57,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 524 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:57,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-18 16:21:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-18 16:21:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 308 states have (on average 1.5454545454545454) internal successors, (476), 309 states have internal predecessors, (476), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-18 16:21:57,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 524 transitions. [2024-11-18 16:21:57,668 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 524 transitions. Word has length 156 [2024-11-18 16:21:57,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:57,669 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 524 transitions. [2024-11-18 16:21:57,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:57,669 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 524 transitions. [2024-11-18 16:21:57,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:21:57,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:57,671 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:57,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:21:57,671 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:57,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:57,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1840493872, now seen corresponding path program 1 times [2024-11-18 16:21:57,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:57,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529951609] [2024-11-18 16:21:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:57,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:57,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:57,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529951609] [2024-11-18 16:21:57,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529951609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:57,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:57,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:21:57,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98202488] [2024-11-18 16:21:57,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:57,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:21:57,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:57,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:21:57,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:57,738 INFO L87 Difference]: Start difference. First operand 339 states and 524 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:57,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:57,754 INFO L93 Difference]: Finished difference Result 662 states and 1022 transitions. [2024-11-18 16:21:57,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:21:57,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 156 [2024-11-18 16:21:57,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:57,758 INFO L225 Difference]: With dead ends: 662 [2024-11-18 16:21:57,759 INFO L226 Difference]: Without dead ends: 339 [2024-11-18 16:21:57,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:21:57,761 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 508 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:57,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 523 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:21:57,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-18 16:21:57,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-11-18 16:21:57,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 308 states have (on average 1.5422077922077921) internal successors, (475), 309 states have internal predecessors, (475), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-18 16:21:57,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 523 transitions. [2024-11-18 16:21:57,777 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 523 transitions. Word has length 156 [2024-11-18 16:21:57,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:57,777 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 523 transitions. [2024-11-18 16:21:57,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:57,778 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 523 transitions. [2024-11-18 16:21:57,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:21:57,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:57,781 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:57,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:21:57,781 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:57,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:57,782 INFO L85 PathProgramCache]: Analyzing trace with hash -52624050, now seen corresponding path program 1 times [2024-11-18 16:21:57,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:57,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406037508] [2024-11-18 16:21:57,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:57,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:57,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:57,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406037508] [2024-11-18 16:21:57,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406037508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:57,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:57,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:21:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274808979] [2024-11-18 16:21:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:57,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:21:57,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:57,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:21:57,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:21:57,917 INFO L87 Difference]: Start difference. First operand 339 states and 523 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:58,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:58,430 INFO L93 Difference]: Finished difference Result 1019 states and 1591 transitions. [2024-11-18 16:21:58,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:21:58,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 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 156 [2024-11-18 16:21:58,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:58,436 INFO L225 Difference]: With dead ends: 1019 [2024-11-18 16:21:58,436 INFO L226 Difference]: Without dead ends: 699 [2024-11-18 16:21:58,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:58,439 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 991 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:58,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1451 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 16:21:58,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-18 16:21:58,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 674. [2024-11-18 16:21:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 617 states have (on average 1.5559157212317667) internal successors, (960), 619 states have internal predecessors, (960), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2024-11-18 16:21:58,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 1047 transitions. [2024-11-18 16:21:58,495 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 1047 transitions. Word has length 156 [2024-11-18 16:21:58,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:58,495 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 1047 transitions. [2024-11-18 16:21:58,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:58,496 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 1047 transitions. [2024-11-18 16:21:58,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:21:58,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:58,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:58,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:21:58,498 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:58,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:58,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1769976274, now seen corresponding path program 1 times [2024-11-18 16:21:58,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:58,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395894200] [2024-11-18 16:21:58,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:58,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:58,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:58,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:58,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395894200] [2024-11-18 16:21:58,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395894200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:58,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:58,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:58,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012716429] [2024-11-18 16:21:58,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:58,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:58,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:58,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:58,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:58,697 INFO L87 Difference]: Start difference. First operand 674 states and 1047 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:59,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:21:59,442 INFO L93 Difference]: Finished difference Result 1754 states and 2760 transitions. [2024-11-18 16:21:59,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:21:59,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:21:59,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:21:59,449 INFO L225 Difference]: With dead ends: 1754 [2024-11-18 16:21:59,450 INFO L226 Difference]: Without dead ends: 1099 [2024-11-18 16:21:59,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:21:59,452 INFO L432 NwaCegarLoop]: 690 mSDtfsCounter, 997 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:21:59,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 2809 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:21:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-11-18 16:21:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 986. [2024-11-18 16:21:59,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 903 states have (on average 1.5492801771871538) internal successors, (1399), 906 states have internal predecessors, (1399), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (66), 63 states have call predecessors, (66), 62 states have call successors, (66) [2024-11-18 16:21:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1527 transitions. [2024-11-18 16:21:59,500 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1527 transitions. Word has length 156 [2024-11-18 16:21:59,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:21:59,501 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1527 transitions. [2024-11-18 16:21:59,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:21:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1527 transitions. [2024-11-18 16:21:59,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:21:59,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:21:59,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:21:59,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:21:59,507 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:21:59,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:21:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash 152535824, now seen corresponding path program 1 times [2024-11-18 16:21:59,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:21:59,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583786791] [2024-11-18 16:21:59,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:21:59,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:21:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:21:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:21:59,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:21:59,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583786791] [2024-11-18 16:21:59,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583786791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:21:59,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:21:59,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:21:59,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073213328] [2024-11-18 16:21:59,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:21:59,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:21:59,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:21:59,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:21:59,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:21:59,696 INFO L87 Difference]: Start difference. First operand 986 states and 1527 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:00,467 INFO L93 Difference]: Finished difference Result 2748 states and 4315 transitions. [2024-11-18 16:22:00,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:22:00,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:00,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:00,477 INFO L225 Difference]: With dead ends: 2748 [2024-11-18 16:22:00,477 INFO L226 Difference]: Without dead ends: 1781 [2024-11-18 16:22:00,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:22:00,481 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 992 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:00,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2793 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:22:00,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-18 16:22:00,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1651. [2024-11-18 16:22:00,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1514 states have (on average 1.5535006605019814) internal successors, (2352), 1521 states have internal predecessors, (2352), 100 states have call successors, (100), 30 states have call predecessors, (100), 36 states have return successors, (116), 103 states have call predecessors, (116), 100 states have call successors, (116) [2024-11-18 16:22:00,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2568 transitions. [2024-11-18 16:22:00,587 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2568 transitions. Word has length 156 [2024-11-18 16:22:00,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:00,587 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 2568 transitions. [2024-11-18 16:22:00,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:00,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2568 transitions. [2024-11-18 16:22:00,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:00,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:00,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:00,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:22:00,590 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:00,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:00,591 INFO L85 PathProgramCache]: Analyzing trace with hash 516002322, now seen corresponding path program 1 times [2024-11-18 16:22:00,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:00,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115070239] [2024-11-18 16:22:00,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:00,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:00,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:00,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115070239] [2024-11-18 16:22:00,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115070239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:00,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:00,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:22:00,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076114496] [2024-11-18 16:22:00,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:00,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:22:00,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:00,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:22:00,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:22:00,760 INFO L87 Difference]: Start difference. First operand 1651 states and 2568 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:01,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:01,139 INFO L93 Difference]: Finished difference Result 3503 states and 5541 transitions. [2024-11-18 16:22:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:22:01,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:01,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:01,151 INFO L225 Difference]: With dead ends: 3503 [2024-11-18 16:22:01,152 INFO L226 Difference]: Without dead ends: 1871 [2024-11-18 16:22:01,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:01,158 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 703 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:01,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 1044 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:22:01,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2024-11-18 16:22:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1651. [2024-11-18 16:22:01,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1514 states have (on average 1.5501981505944518) internal successors, (2347), 1521 states have internal predecessors, (2347), 100 states have call successors, (100), 30 states have call predecessors, (100), 36 states have return successors, (116), 103 states have call predecessors, (116), 100 states have call successors, (116) [2024-11-18 16:22:01,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2563 transitions. [2024-11-18 16:22:01,285 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2563 transitions. Word has length 156 [2024-11-18 16:22:01,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:01,285 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 2563 transitions. [2024-11-18 16:22:01,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2563 transitions. [2024-11-18 16:22:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:01,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:01,288 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:01,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:22:01,288 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:01,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:01,289 INFO L85 PathProgramCache]: Analyzing trace with hash 804821712, now seen corresponding path program 1 times [2024-11-18 16:22:01,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:01,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854998296] [2024-11-18 16:22:01,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:01,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:01,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:01,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:01,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854998296] [2024-11-18 16:22:01,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854998296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:01,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:01,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:22:01,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761698161] [2024-11-18 16:22:01,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:01,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:22:01,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:01,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:22:01,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:22:01,428 INFO L87 Difference]: Start difference. First operand 1651 states and 2563 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:01,806 INFO L93 Difference]: Finished difference Result 3492 states and 5509 transitions. [2024-11-18 16:22:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:22:01,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:01,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:01,819 INFO L225 Difference]: With dead ends: 3492 [2024-11-18 16:22:01,819 INFO L226 Difference]: Without dead ends: 1860 [2024-11-18 16:22:01,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:01,825 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 700 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:01,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 1036 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:22:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2024-11-18 16:22:01,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1651. [2024-11-18 16:22:01,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1514 states have (on average 1.546895640686922) internal successors, (2342), 1521 states have internal predecessors, (2342), 100 states have call successors, (100), 30 states have call predecessors, (100), 36 states have return successors, (116), 103 states have call predecessors, (116), 100 states have call successors, (116) [2024-11-18 16:22:01,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2558 transitions. [2024-11-18 16:22:01,946 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2558 transitions. Word has length 156 [2024-11-18 16:22:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:01,947 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 2558 transitions. [2024-11-18 16:22:01,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2558 transitions. [2024-11-18 16:22:01,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:01,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:01,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:01,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:22:01,951 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:01,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:01,951 INFO L85 PathProgramCache]: Analyzing trace with hash 259949138, now seen corresponding path program 1 times [2024-11-18 16:22:01,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:01,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071380369] [2024-11-18 16:22:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:01,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:02,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:02,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:02,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071380369] [2024-11-18 16:22:02,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071380369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:02,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:02,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:22:02,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185656029] [2024-11-18 16:22:02,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:02,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:22:02,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:02,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:22:02,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:02,165 INFO L87 Difference]: Start difference. First operand 1651 states and 2558 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:03,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:03,046 INFO L93 Difference]: Finished difference Result 4863 states and 7652 transitions. [2024-11-18 16:22:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:22:03,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:03,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:03,063 INFO L225 Difference]: With dead ends: 4863 [2024-11-18 16:22:03,063 INFO L226 Difference]: Without dead ends: 3231 [2024-11-18 16:22:03,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:22:03,070 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 971 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:03,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 2743 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:22:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3231 states. [2024-11-18 16:22:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3231 to 3080. [2024-11-18 16:22:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 2829 states have (on average 1.5616825733474726) internal successors, (4418), 2850 states have internal predecessors, (4418), 176 states have call successors, (176), 54 states have call predecessors, (176), 74 states have return successors, (240), 183 states have call predecessors, (240), 176 states have call successors, (240) [2024-11-18 16:22:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 4834 transitions. [2024-11-18 16:22:03,296 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 4834 transitions. Word has length 156 [2024-11-18 16:22:03,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:03,297 INFO L471 AbstractCegarLoop]: Abstraction has 3080 states and 4834 transitions. [2024-11-18 16:22:03,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:03,297 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 4834 transitions. [2024-11-18 16:22:03,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:03,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:03,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:03,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:22:03,301 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:03,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:03,301 INFO L85 PathProgramCache]: Analyzing trace with hash 935109264, now seen corresponding path program 1 times [2024-11-18 16:22:03,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:03,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330644842] [2024-11-18 16:22:03,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:03,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:03,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:03,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:03,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330644842] [2024-11-18 16:22:03,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330644842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:03,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:03,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:22:03,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209182579] [2024-11-18 16:22:03,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:03,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:22:03,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:03,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:22:03,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:03,485 INFO L87 Difference]: Start difference. First operand 3080 states and 4834 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:04,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:04,500 INFO L93 Difference]: Finished difference Result 9470 states and 15158 transitions. [2024-11-18 16:22:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:22:04,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:04,548 INFO L225 Difference]: With dead ends: 9470 [2024-11-18 16:22:04,549 INFO L226 Difference]: Without dead ends: 6409 [2024-11-18 16:22:04,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:22:04,562 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 963 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:04,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 2717 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:22:04,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6409 states. [2024-11-18 16:22:04,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6409 to 6208. [2024-11-18 16:22:04,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6208 states, 5711 states have (on average 1.585011381544388) internal successors, (9052), 5778 states have internal predecessors, (9052), 328 states have call successors, (328), 102 states have call predecessors, (328), 168 states have return successors, (584), 343 states have call predecessors, (584), 328 states have call successors, (584) [2024-11-18 16:22:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6208 states to 6208 states and 9964 transitions. [2024-11-18 16:22:04,957 INFO L78 Accepts]: Start accepts. Automaton has 6208 states and 9964 transitions. Word has length 156 [2024-11-18 16:22:04,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:04,957 INFO L471 AbstractCegarLoop]: Abstraction has 6208 states and 9964 transitions. [2024-11-18 16:22:04,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:04,959 INFO L276 IsEmpty]: Start isEmpty. Operand 6208 states and 9964 transitions. [2024-11-18 16:22:04,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:04,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:04,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:04,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:22:04,964 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:04,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:04,965 INFO L85 PathProgramCache]: Analyzing trace with hash 350337614, now seen corresponding path program 1 times [2024-11-18 16:22:04,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:04,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745641980] [2024-11-18 16:22:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:04,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:05,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745641980] [2024-11-18 16:22:05,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745641980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:05,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:05,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:22:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988013517] [2024-11-18 16:22:05,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:05,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:22:05,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:05,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:22:05,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:22:05,110 INFO L87 Difference]: Start difference. First operand 6208 states and 9964 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:05,865 INFO L93 Difference]: Finished difference Result 13642 states and 22431 transitions. [2024-11-18 16:22:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:22:05,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:05,914 INFO L225 Difference]: With dead ends: 13642 [2024-11-18 16:22:05,914 INFO L226 Difference]: Without dead ends: 7453 [2024-11-18 16:22:05,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:05,935 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 694 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:05,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 1010 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:22:05,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7453 states. [2024-11-18 16:22:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7453 to 6208. [2024-11-18 16:22:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6208 states, 5711 states have (on average 1.5820346699352128) internal successors, (9035), 5778 states have internal predecessors, (9035), 328 states have call successors, (328), 102 states have call predecessors, (328), 168 states have return successors, (584), 343 states have call predecessors, (584), 328 states have call successors, (584) [2024-11-18 16:22:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6208 states to 6208 states and 9947 transitions. [2024-11-18 16:22:06,314 INFO L78 Accepts]: Start accepts. Automaton has 6208 states and 9947 transitions. Word has length 156 [2024-11-18 16:22:06,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:06,316 INFO L471 AbstractCegarLoop]: Abstraction has 6208 states and 9947 transitions. [2024-11-18 16:22:06,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 6208 states and 9947 transitions. [2024-11-18 16:22:06,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:06,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:06,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:06,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:22:06,321 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:06,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:06,323 INFO L85 PathProgramCache]: Analyzing trace with hash -84167984, now seen corresponding path program 1 times [2024-11-18 16:22:06,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:06,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170974834] [2024-11-18 16:22:06,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:06,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:06,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:06,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:06,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170974834] [2024-11-18 16:22:06,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170974834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:06,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:06,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:22:06,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145444283] [2024-11-18 16:22:06,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:06,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:22:06,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:06,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:22:06,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:06,472 INFO L87 Difference]: Start difference. First operand 6208 states and 9947 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:07,753 INFO L93 Difference]: Finished difference Result 19646 states and 32295 transitions. [2024-11-18 16:22:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:22:07,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:07,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:07,813 INFO L225 Difference]: With dead ends: 19646 [2024-11-18 16:22:07,813 INFO L226 Difference]: Without dead ends: 13457 [2024-11-18 16:22:07,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:22:07,836 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 950 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:07,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 2686 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:22:07,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2024-11-18 16:22:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 13166. [2024-11-18 16:22:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13166 states, 12123 states have (on average 1.6102449888641426) internal successors, (19521), 12336 states have internal predecessors, (19521), 632 states have call successors, (632), 198 states have call predecessors, (632), 410 states have return successors, (1656), 663 states have call predecessors, (1656), 632 states have call successors, (1656) [2024-11-18 16:22:08,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13166 states to 13166 states and 21809 transitions. [2024-11-18 16:22:08,798 INFO L78 Accepts]: Start accepts. Automaton has 13166 states and 21809 transitions. Word has length 156 [2024-11-18 16:22:08,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:08,798 INFO L471 AbstractCegarLoop]: Abstraction has 13166 states and 21809 transitions. [2024-11-18 16:22:08,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:08,799 INFO L276 IsEmpty]: Start isEmpty. Operand 13166 states and 21809 transitions. [2024-11-18 16:22:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:08,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:08,806 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:08,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:22:08,807 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:08,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:08,807 INFO L85 PathProgramCache]: Analyzing trace with hash -513826290, now seen corresponding path program 1 times [2024-11-18 16:22:08,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:08,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770465177] [2024-11-18 16:22:08,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:08,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:08,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:08,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:08,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770465177] [2024-11-18 16:22:08,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770465177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:08,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:08,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:22:08,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363937373] [2024-11-18 16:22:08,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:08,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:22:08,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:08,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:22:08,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:22:08,937 INFO L87 Difference]: Start difference. First operand 13166 states and 21809 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:10,075 INFO L93 Difference]: Finished difference Result 29498 states and 50315 transitions. [2024-11-18 16:22:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:22:10,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:10,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:10,151 INFO L225 Difference]: With dead ends: 29498 [2024-11-18 16:22:10,152 INFO L226 Difference]: Without dead ends: 16351 [2024-11-18 16:22:10,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:10,188 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 690 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:10,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 996 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:22:10,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16351 states. [2024-11-18 16:22:10,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16351 to 13166. [2024-11-18 16:22:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13166 states, 12123 states have (on average 1.6075228903736698) internal successors, (19488), 12336 states have internal predecessors, (19488), 632 states have call successors, (632), 198 states have call predecessors, (632), 410 states have return successors, (1656), 663 states have call predecessors, (1656), 632 states have call successors, (1656) [2024-11-18 16:22:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13166 states to 13166 states and 21776 transitions. [2024-11-18 16:22:11,037 INFO L78 Accepts]: Start accepts. Automaton has 13166 states and 21776 transitions. Word has length 156 [2024-11-18 16:22:11,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:11,037 INFO L471 AbstractCegarLoop]: Abstraction has 13166 states and 21776 transitions. [2024-11-18 16:22:11,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:11,037 INFO L276 IsEmpty]: Start isEmpty. Operand 13166 states and 21776 transitions. [2024-11-18 16:22:11,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:11,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:11,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:11,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 16:22:11,046 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:11,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:11,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1220422896, now seen corresponding path program 1 times [2024-11-18 16:22:11,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:11,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443075866] [2024-11-18 16:22:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:11,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:11,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:11,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443075866] [2024-11-18 16:22:11,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443075866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:11,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:11,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:22:11,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680237917] [2024-11-18 16:22:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:11,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:22:11,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:11,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:22:11,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:22:11,164 INFO L87 Difference]: Start difference. First operand 13166 states and 21776 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:12,658 INFO L93 Difference]: Finished difference Result 29253 states and 49759 transitions. [2024-11-18 16:22:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:22:12,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:12,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:12,748 INFO L225 Difference]: With dead ends: 29253 [2024-11-18 16:22:12,749 INFO L226 Difference]: Without dead ends: 16106 [2024-11-18 16:22:12,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:12,793 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 685 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:12,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 986 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:22:12,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16106 states. [2024-11-18 16:22:13,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16106 to 13166. [2024-11-18 16:22:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13166 states, 12123 states have (on average 1.6048007918831972) internal successors, (19455), 12336 states have internal predecessors, (19455), 632 states have call successors, (632), 198 states have call predecessors, (632), 410 states have return successors, (1656), 663 states have call predecessors, (1656), 632 states have call successors, (1656) [2024-11-18 16:22:13,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13166 states to 13166 states and 21743 transitions. [2024-11-18 16:22:13,761 INFO L78 Accepts]: Start accepts. Automaton has 13166 states and 21743 transitions. Word has length 156 [2024-11-18 16:22:13,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:13,761 INFO L471 AbstractCegarLoop]: Abstraction has 13166 states and 21743 transitions. [2024-11-18 16:22:13,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:13,762 INFO L276 IsEmpty]: Start isEmpty. Operand 13166 states and 21743 transitions. [2024-11-18 16:22:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:13,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:13,769 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:13,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 16:22:13,770 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:13,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash -273385010, now seen corresponding path program 1 times [2024-11-18 16:22:13,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:13,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981218716] [2024-11-18 16:22:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:13,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:13,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:13,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:13,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981218716] [2024-11-18 16:22:13,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981218716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:13,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:13,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:22:13,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007194794] [2024-11-18 16:22:13,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:13,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:22:13,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:13,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:22:13,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:13,892 INFO L87 Difference]: Start difference. First operand 13166 states and 21743 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:16,412 INFO L93 Difference]: Finished difference Result 44322 states and 75362 transitions. [2024-11-18 16:22:16,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:22:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:16,546 INFO L225 Difference]: With dead ends: 44322 [2024-11-18 16:22:16,547 INFO L226 Difference]: Without dead ends: 31175 [2024-11-18 16:22:16,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:22:16,588 INFO L432 NwaCegarLoop]: 642 mSDtfsCounter, 1212 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:16,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 2619 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:22:16,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31175 states. [2024-11-18 16:22:18,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31175 to 28365. [2024-11-18 16:22:18,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28365 states, 26100 states have (on average 1.632911877394636) internal successors, (42619), 26767 states have internal predecessors, (42619), 1208 states have call successors, (1208), 390 states have call predecessors, (1208), 1056 states have return successors, (5304), 1271 states have call predecessors, (5304), 1208 states have call successors, (5304) [2024-11-18 16:22:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28365 states to 28365 states and 49131 transitions. [2024-11-18 16:22:18,639 INFO L78 Accepts]: Start accepts. Automaton has 28365 states and 49131 transitions. Word has length 156 [2024-11-18 16:22:18,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:18,642 INFO L471 AbstractCegarLoop]: Abstraction has 28365 states and 49131 transitions. [2024-11-18 16:22:18,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 28365 states and 49131 transitions. [2024-11-18 16:22:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:18,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:18,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:18,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 16:22:18,657 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:18,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:18,658 INFO L85 PathProgramCache]: Analyzing trace with hash 588448592, now seen corresponding path program 1 times [2024-11-18 16:22:18,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:18,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93714580] [2024-11-18 16:22:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:18,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:18,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:18,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93714580] [2024-11-18 16:22:18,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93714580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:18,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:18,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:22:18,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133961117] [2024-11-18 16:22:18,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:18,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:22:18,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:18,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:22:18,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:18,798 INFO L87 Difference]: Start difference. First operand 28365 states and 49131 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:23,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:23,174 INFO L93 Difference]: Finished difference Result 96581 states and 174704 transitions. [2024-11-18 16:22:23,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:22:23,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:23,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:23,552 INFO L225 Difference]: With dead ends: 96581 [2024-11-18 16:22:23,552 INFO L226 Difference]: Without dead ends: 68235 [2024-11-18 16:22:23,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:22:23,654 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 1007 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:23,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 2611 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 16:22:23,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68235 states. [2024-11-18 16:22:27,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68235 to 63444. [2024-11-18 16:22:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63444 states, 58281 states have (on average 1.6623427875293835) internal successors, (96883), 60342 states have internal predecessors, (96883), 2328 states have call successors, (2328), 774 states have call predecessors, (2328), 2834 states have return successors, (18712), 2455 states have call predecessors, (18712), 2328 states have call successors, (18712) [2024-11-18 16:22:28,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63444 states to 63444 states and 117923 transitions. [2024-11-18 16:22:28,529 INFO L78 Accepts]: Start accepts. Automaton has 63444 states and 117923 transitions. Word has length 156 [2024-11-18 16:22:28,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:22:28,530 INFO L471 AbstractCegarLoop]: Abstraction has 63444 states and 117923 transitions. [2024-11-18 16:22:28,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:28,530 INFO L276 IsEmpty]: Start isEmpty. Operand 63444 states and 117923 transitions. [2024-11-18 16:22:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 16:22:28,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:22:28,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:22:28,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 16:22:28,557 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:22:28,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:22:28,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1461960306, now seen corresponding path program 1 times [2024-11-18 16:22:28,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:22:28,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060580790] [2024-11-18 16:22:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:22:28,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:22:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:22:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:22:28,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:22:28,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060580790] [2024-11-18 16:22:28,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060580790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:22:28,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:22:28,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:22:28,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226794251] [2024-11-18 16:22:28,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:22:28,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:22:28,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:22:28,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:22:28,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:22:28,722 INFO L87 Difference]: Start difference. First operand 63444 states and 117923 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 16:22:36,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:22:36,846 INFO L93 Difference]: Finished difference Result 214514 states and 425810 transitions. [2024-11-18 16:22:36,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:22:36,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 16:22:36,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:22:38,000 INFO L225 Difference]: With dead ends: 214514 [2024-11-18 16:22:38,000 INFO L226 Difference]: Without dead ends: 151089 [2024-11-18 16:22:38,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:22:38,198 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 1110 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 16:22:38,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 2585 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 16:22:38,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151089 states.