./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_2.cil-1+token_ring.11.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 b3322c0c768700658989b53a570d5dd58dc6c9ba5f33ff303fa538b570ca8619 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:56:03,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:56:03,250 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:56:03,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:56:03,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:56:03,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:56:03,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:56:03,289 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:56:03,289 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:56:03,290 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:56:03,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:56:03,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:56:03,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:56:03,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:56:03,293 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:56:03,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:56:03,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:56:03,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:56:03,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:56:03,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:56:03,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:56:03,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:56:03,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:56:03,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:56:03,301 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:56:03,301 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:56:03,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:56:03,302 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:56:03,302 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:56:03,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:56:03,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:56:03,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:56:03,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:56:03,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:56:03,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:56:03,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:56:03,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:56:03,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:56:03,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:56:03,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:56:03,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:56:03,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:56:03,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3322c0c768700658989b53a570d5dd58dc6c9ba5f33ff303fa538b570ca8619 [2024-11-16 09:56:03,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:56:03,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:56:03,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:56:03,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:56:03,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:56:03,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-2.c [2024-11-16 09:56:05,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:56:05,276 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:56:05,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.11.cil-2.c [2024-11-16 09:56:05,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3cb7f801/c8935002f26b4a9dab2bc7fcd9625977/FLAG42370ede3 [2024-11-16 09:56:05,593 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3cb7f801/c8935002f26b4a9dab2bc7fcd9625977 [2024-11-16 09:56:05,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:56:05,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:56:05,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:56:05,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:56:05,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:56:05,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:56:05" (1/1) ... [2024-11-16 09:56:05,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174144f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:05, skipping insertion in model container [2024-11-16 09:56:05,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:56:05" (1/1) ... [2024-11-16 09:56:05,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:56:05,860 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_2.cil-1+token_ring.11.cil-2.c[914,927] [2024-11-16 09:56:05,933 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_2.cil-1+token_ring.11.cil-2.c[7115,7128] [2024-11-16 09:56:06,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:56:06,055 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:56:06,067 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_2.cil-1+token_ring.11.cil-2.c[914,927] [2024-11-16 09:56:06,092 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_2.cil-1+token_ring.11.cil-2.c[7115,7128] [2024-11-16 09:56:06,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:56:06,190 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:56:06,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06 WrapperNode [2024-11-16 09:56:06,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:56:06,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:56:06,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:56:06,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:56:06,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,267 INFO L138 Inliner]: procedures = 75, calls = 90, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 990 [2024-11-16 09:56:06,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:56:06,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:56:06,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:56:06,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:56:06,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,315 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]. [2024-11-16 09:56:06,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,330 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:56:06,342 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:56:06,342 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:56:06,342 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:56:06,343 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (1/1) ... [2024-11-16 09:56:06,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:56:06,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:56:06,393 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) [2024-11-16 09:56:06,399 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 [2024-11-16 09:56:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:56:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:56:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:56:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-16 09:56:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-16 09:56:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-16 09:56:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-16 09:56:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-16 09:56:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-16 09:56:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-16 09:56:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-16 09:56:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-16 09:56:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-16 09:56:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-16 09:56:06,449 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-16 09:56:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-16 09:56:06,449 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-16 09:56:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-16 09:56:06,450 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-16 09:56:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-16 09:56:06,450 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-16 09:56:06,450 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-16 09:56:06,450 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-16 09:56:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:56:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-16 09:56:06,451 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-16 09:56:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-16 09:56:06,451 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-16 09:56:06,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:56:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:56:06,452 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-16 09:56:06,452 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-16 09:56:06,590 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:56:06,592 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:56:07,653 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-11-16 09:56:07,653 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:56:07,685 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:56:07,689 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:56:07,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:56:07 BoogieIcfgContainer [2024-11-16 09:56:07,690 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:56:07,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:56:07,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:56:07,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:56:07,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:56:05" (1/3) ... [2024-11-16 09:56:07,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b5d0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:56:07, skipping insertion in model container [2024-11-16 09:56:07,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:56:06" (2/3) ... [2024-11-16 09:56:07,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b5d0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:56:07, skipping insertion in model container [2024-11-16 09:56:07,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:56:07" (3/3) ... [2024-11-16 09:56:07,698 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.11.cil-2.c [2024-11-16 09:56:07,714 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:56:07,715 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:56:07,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:56:07,807 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;@2da53e9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:56:07,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:56:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 544 states, 488 states have (on average 1.5245901639344261) internal successors, (744), 494 states have internal predecessors, (744), 39 states have call successors, (39), 14 states have call predecessors, (39), 14 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-16 09:56:07,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:07,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:07,828 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] [2024-11-16 09:56:07,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:07,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:07,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1077842704, now seen corresponding path program 1 times [2024-11-16 09:56:07,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:07,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193384144] [2024-11-16 09:56:07,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:07,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:08,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:08,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193384144] [2024-11-16 09:56:08,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193384144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:08,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:08,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:08,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361159795] [2024-11-16 09:56:08,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:08,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:08,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:08,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:08,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:08,284 INFO L87 Difference]: Start difference. First operand has 544 states, 488 states have (on average 1.5245901639344261) internal successors, (744), 494 states have internal predecessors, (744), 39 states have call successors, (39), 14 states have call predecessors, (39), 14 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:09,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:09,355 INFO L93 Difference]: Finished difference Result 1063 states and 1609 transitions. [2024-11-16 09:56:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:56:09,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:56:09,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:09,371 INFO L225 Difference]: With dead ends: 1063 [2024-11-16 09:56:09,372 INFO L226 Difference]: Without dead ends: 534 [2024-11-16 09:56:09,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:09,383 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1019 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:09,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1561 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:56:09,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-16 09:56:09,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 516. [2024-11-16 09:56:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 462 states have (on average 1.4653679653679654) internal successors, (677), 466 states have internal predecessors, (677), 39 states have call successors, (39), 14 states have call predecessors, (39), 13 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-16 09:56:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 753 transitions. [2024-11-16 09:56:09,472 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 753 transitions. Word has length 69 [2024-11-16 09:56:09,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:09,473 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 753 transitions. [2024-11-16 09:56:09,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:09,473 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 753 transitions. [2024-11-16 09:56:09,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:09,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:09,477 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] [2024-11-16 09:56:09,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:56:09,477 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:09,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:09,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1358192593, now seen corresponding path program 1 times [2024-11-16 09:56:09,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:09,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754323668] [2024-11-16 09:56:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:09,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:09,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:09,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754323668] [2024-11-16 09:56:09,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754323668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:09,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:09,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:09,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558041352] [2024-11-16 09:56:09,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:09,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:09,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:09,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:09,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:09,824 INFO L87 Difference]: Start difference. First operand 516 states and 753 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:11,141 INFO L93 Difference]: Finished difference Result 767 states and 1095 transitions. [2024-11-16 09:56:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:11,142 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:56:11,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:11,146 INFO L225 Difference]: With dead ends: 767 [2024-11-16 09:56:11,147 INFO L226 Difference]: Without dead ends: 665 [2024-11-16 09:56:11,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:56:11,149 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 832 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:11,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2730 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:56:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-16 09:56:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 625. [2024-11-16 09:56:11,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 551 states have (on average 1.441016333938294) internal successors, (794), 557 states have internal predecessors, (794), 50 states have call successors, (50), 21 states have call predecessors, (50), 22 states have return successors, (53), 49 states have call predecessors, (53), 48 states have call successors, (53) [2024-11-16 09:56:11,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 897 transitions. [2024-11-16 09:56:11,237 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 897 transitions. Word has length 69 [2024-11-16 09:56:11,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:11,238 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 897 transitions. [2024-11-16 09:56:11,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:11,238 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 897 transitions. [2024-11-16 09:56:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:11,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:11,244 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:11,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:56:11,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:11,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:11,245 INFO L85 PathProgramCache]: Analyzing trace with hash 677915884, now seen corresponding path program 1 times [2024-11-16 09:56:11,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:11,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956151922] [2024-11-16 09:56:11,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:11,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:11,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:11,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956151922] [2024-11-16 09:56:11,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956151922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:11,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:11,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:11,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446936738] [2024-11-16 09:56:11,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:11,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:11,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:11,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:11,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:11,462 INFO L87 Difference]: Start difference. First operand 625 states and 897 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:12,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:12,762 INFO L93 Difference]: Finished difference Result 1013 states and 1414 transitions. [2024-11-16 09:56:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:56:12,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-16 09:56:12,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:12,769 INFO L225 Difference]: With dead ends: 1013 [2024-11-16 09:56:12,771 INFO L226 Difference]: Without dead ends: 809 [2024-11-16 09:56:12,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:56:12,774 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 1807 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:12,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 2291 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:56:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-16 09:56:12,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 734. [2024-11-16 09:56:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 640 states have (on average 1.421875) internal successors, (910), 648 states have internal predecessors, (910), 61 states have call successors, (61), 28 states have call predecessors, (61), 31 states have return successors, (72), 61 states have call predecessors, (72), 59 states have call successors, (72) [2024-11-16 09:56:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1043 transitions. [2024-11-16 09:56:12,837 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1043 transitions. Word has length 69 [2024-11-16 09:56:12,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:12,837 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 1043 transitions. [2024-11-16 09:56:12,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:12,838 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1043 transitions. [2024-11-16 09:56:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:12,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:12,840 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] [2024-11-16 09:56:12,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:56:12,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:12,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:12,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1371308589, now seen corresponding path program 1 times [2024-11-16 09:56:12,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:12,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338101712] [2024-11-16 09:56:12,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:12,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:12,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:13,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:13,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338101712] [2024-11-16 09:56:13,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338101712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:13,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:13,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:56:13,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458489747] [2024-11-16 09:56:13,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:13,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:56:13,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:13,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:56:13,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:13,029 INFO L87 Difference]: Start difference. First operand 734 states and 1043 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:14,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:14,242 INFO L93 Difference]: Finished difference Result 1073 states and 1494 transitions. [2024-11-16 09:56:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:14,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-16 09:56:14,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:14,250 INFO L225 Difference]: With dead ends: 1073 [2024-11-16 09:56:14,251 INFO L226 Difference]: Without dead ends: 766 [2024-11-16 09:56:14,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:56:14,257 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 909 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:14,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 2844 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:56:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-11-16 09:56:14,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 739. [2024-11-16 09:56:14,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 644 states have (on average 1.4161490683229814) internal successors, (912), 652 states have internal predecessors, (912), 61 states have call successors, (61), 28 states have call predecessors, (61), 32 states have return successors, (73), 62 states have call predecessors, (73), 59 states have call successors, (73) [2024-11-16 09:56:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1046 transitions. [2024-11-16 09:56:14,302 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1046 transitions. Word has length 69 [2024-11-16 09:56:14,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:14,305 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1046 transitions. [2024-11-16 09:56:14,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1046 transitions. [2024-11-16 09:56:14,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:56:14,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:14,308 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] [2024-11-16 09:56:14,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:56:14,309 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:14,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:14,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1495381836, now seen corresponding path program 1 times [2024-11-16 09:56:14,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:14,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111702120] [2024-11-16 09:56:14,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:14,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:14,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:14,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111702120] [2024-11-16 09:56:14,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111702120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:14,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:14,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 09:56:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63355145] [2024-11-16 09:56:14,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:14,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:56:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:14,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:56:14,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:14,458 INFO L87 Difference]: Start difference. First operand 739 states and 1046 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:56:16,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:16,362 INFO L93 Difference]: Finished difference Result 2255 states and 3035 transitions. [2024-11-16 09:56:16,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-16 09:56:16,365 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 69 [2024-11-16 09:56:16,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:16,374 INFO L225 Difference]: With dead ends: 2255 [2024-11-16 09:56:16,375 INFO L226 Difference]: Without dead ends: 1925 [2024-11-16 09:56:16,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 09:56:16,377 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 3753 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3767 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:16,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3767 Valid, 3058 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:56:16,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2024-11-16 09:56:16,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1773. [2024-11-16 09:56:16,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1492 states have (on average 1.3310991957104559) internal successors, (1986), 1515 states have internal predecessors, (1986), 149 states have call successors, (149), 111 states have call predecessors, (149), 130 states have return successors, (187), 149 states have call predecessors, (187), 147 states have call successors, (187) [2024-11-16 09:56:16,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2322 transitions. [2024-11-16 09:56:16,495 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2322 transitions. Word has length 69 [2024-11-16 09:56:16,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:16,495 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 2322 transitions. [2024-11-16 09:56:16,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-16 09:56:16,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2322 transitions. [2024-11-16 09:56:16,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:56:16,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:16,497 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] [2024-11-16 09:56:16,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:56:16,497 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:16,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:16,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2123619301, now seen corresponding path program 1 times [2024-11-16 09:56:16,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737956663] [2024-11-16 09:56:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:16,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:16,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:16,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:16,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737956663] [2024-11-16 09:56:16,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737956663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:16,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:16,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:56:16,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684539673] [2024-11-16 09:56:16,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:16,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:56:16,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:16,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:56:16,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:16,633 INFO L87 Difference]: Start difference. First operand 1773 states and 2322 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:17,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:17,920 INFO L93 Difference]: Finished difference Result 3233 states and 4164 transitions. [2024-11-16 09:56:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:56:17,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-16 09:56:17,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:17,930 INFO L225 Difference]: With dead ends: 3233 [2024-11-16 09:56:17,930 INFO L226 Difference]: Without dead ends: 1875 [2024-11-16 09:56:17,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:56:17,937 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 916 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:17,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 2841 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:56:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2024-11-16 09:56:18,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1803. [2024-11-16 09:56:18,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1516 states have (on average 1.3205804749340369) internal successors, (2002), 1539 states have internal predecessors, (2002), 149 states have call successors, (149), 111 states have call predecessors, (149), 136 states have return successors, (193), 155 states have call predecessors, (193), 147 states have call successors, (193) [2024-11-16 09:56:18,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2344 transitions. [2024-11-16 09:56:18,041 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2344 transitions. Word has length 72 [2024-11-16 09:56:18,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:18,042 INFO L471 AbstractCegarLoop]: Abstraction has 1803 states and 2344 transitions. [2024-11-16 09:56:18,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:18,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2344 transitions. [2024-11-16 09:56:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:56:18,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:18,045 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] [2024-11-16 09:56:18,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:56:18,045 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:18,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:18,045 INFO L85 PathProgramCache]: Analyzing trace with hash -221047740, now seen corresponding path program 1 times [2024-11-16 09:56:18,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:18,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745013648] [2024-11-16 09:56:18,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:18,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:18,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:18,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:18,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:18,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:18,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:18,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:18,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:18,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:18,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745013648] [2024-11-16 09:56:18,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745013648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:18,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:18,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:18,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011360506] [2024-11-16 09:56:18,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:18,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:18,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:18,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:18,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:18,218 INFO L87 Difference]: Start difference. First operand 1803 states and 2344 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:19,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:19,496 INFO L93 Difference]: Finished difference Result 3191 states and 4024 transitions. [2024-11-16 09:56:19,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 09:56:19,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2024-11-16 09:56:19,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:19,507 INFO L225 Difference]: With dead ends: 3191 [2024-11-16 09:56:19,508 INFO L226 Difference]: Without dead ends: 2059 [2024-11-16 09:56:19,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-16 09:56:19,511 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 1429 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:19,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 2386 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:56:19,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2024-11-16 09:56:19,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 1737. [2024-11-16 09:56:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1466 states have (on average 1.3185538881309686) internal successors, (1933), 1484 states have internal predecessors, (1933), 143 states have call successors, (143), 106 states have call predecessors, (143), 126 states have return successors, (178), 148 states have call predecessors, (178), 141 states have call successors, (178) [2024-11-16 09:56:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2254 transitions. [2024-11-16 09:56:19,627 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2254 transitions. Word has length 72 [2024-11-16 09:56:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:19,628 INFO L471 AbstractCegarLoop]: Abstraction has 1737 states and 2254 transitions. [2024-11-16 09:56:19,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2254 transitions. [2024-11-16 09:56:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 09:56:19,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:19,630 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] [2024-11-16 09:56:19,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:56:19,630 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:19,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:19,631 INFO L85 PathProgramCache]: Analyzing trace with hash 129752197, now seen corresponding path program 1 times [2024-11-16 09:56:19,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:19,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137787698] [2024-11-16 09:56:19,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:19,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:19,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:19,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:19,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137787698] [2024-11-16 09:56:19,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137787698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:19,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:19,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:19,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847733371] [2024-11-16 09:56:19,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:19,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:19,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:19,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:19,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:19,758 INFO L87 Difference]: Start difference. First operand 1737 states and 2254 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:20,739 INFO L93 Difference]: Finished difference Result 4336 states and 5474 transitions. [2024-11-16 09:56:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 09:56:20,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2024-11-16 09:56:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:20,754 INFO L225 Difference]: With dead ends: 4336 [2024-11-16 09:56:20,755 INFO L226 Difference]: Without dead ends: 3015 [2024-11-16 09:56:20,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:56:20,760 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 1732 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:20,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 1609 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:20,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2024-11-16 09:56:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 2894. [2024-11-16 09:56:20,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 2380 states have (on average 1.2680672268907562) internal successors, (3018), 2415 states have internal predecessors, (3018), 262 states have call successors, (262), 205 states have call predecessors, (262), 250 states have return successors, (369), 276 states have call predecessors, (369), 260 states have call successors, (369) [2024-11-16 09:56:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3649 transitions. [2024-11-16 09:56:20,968 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3649 transitions. Word has length 72 [2024-11-16 09:56:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:20,968 INFO L471 AbstractCegarLoop]: Abstraction has 2894 states and 3649 transitions. [2024-11-16 09:56:20,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 09:56:20,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3649 transitions. [2024-11-16 09:56:20,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:56:20,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:20,970 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] [2024-11-16 09:56:20,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:56:20,970 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:20,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash 516393202, now seen corresponding path program 1 times [2024-11-16 09:56:20,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:20,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744349799] [2024-11-16 09:56:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:20,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:21,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:21,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744349799] [2024-11-16 09:56:21,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744349799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:21,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:21,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:21,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896115103] [2024-11-16 09:56:21,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:21,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:21,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:21,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:21,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:21,046 INFO L87 Difference]: Start difference. First operand 2894 states and 3649 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:21,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:21,993 INFO L93 Difference]: Finished difference Result 6583 states and 8167 transitions. [2024-11-16 09:56:21,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:21,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-16 09:56:21,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:22,014 INFO L225 Difference]: With dead ends: 6583 [2024-11-16 09:56:22,015 INFO L226 Difference]: Without dead ends: 4110 [2024-11-16 09:56:22,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:22,042 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 803 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:22,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1952 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:22,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2024-11-16 09:56:22,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 3814. [2024-11-16 09:56:22,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3114 states have (on average 1.25208734746307) internal successors, (3899), 3154 states have internal predecessors, (3899), 354 states have call successors, (354), 285 states have call predecessors, (354), 344 states have return successors, (483), 377 states have call predecessors, (483), 352 states have call successors, (483) [2024-11-16 09:56:22,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 4736 transitions. [2024-11-16 09:56:22,363 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 4736 transitions. Word has length 73 [2024-11-16 09:56:22,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:22,364 INFO L471 AbstractCegarLoop]: Abstraction has 3814 states and 4736 transitions. [2024-11-16 09:56:22,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:22,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 4736 transitions. [2024-11-16 09:56:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:56:22,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:22,366 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] [2024-11-16 09:56:22,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:56:22,366 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:22,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:22,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1560331524, now seen corresponding path program 1 times [2024-11-16 09:56:22,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:22,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544611946] [2024-11-16 09:56:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:22,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:22,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:22,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544611946] [2024-11-16 09:56:22,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544611946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:22,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:22,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:22,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049157415] [2024-11-16 09:56:22,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:22,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:22,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:22,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:22,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:22,466 INFO L87 Difference]: Start difference. First operand 3814 states and 4736 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:23,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:23,259 INFO L93 Difference]: Finished difference Result 8141 states and 9965 transitions. [2024-11-16 09:56:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:23,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 83 [2024-11-16 09:56:23,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:23,280 INFO L225 Difference]: With dead ends: 8141 [2024-11-16 09:56:23,281 INFO L226 Difference]: Without dead ends: 4746 [2024-11-16 09:56:23,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:23,289 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1360 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:23,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 1669 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:56:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4746 states. [2024-11-16 09:56:23,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4746 to 4426. [2024-11-16 09:56:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4426 states, 3612 states have (on average 1.245016611295681) internal successors, (4497), 3656 states have internal predecessors, (4497), 410 states have call successors, (410), 335 states have call predecessors, (410), 402 states have return successors, (556), 437 states have call predecessors, (556), 408 states have call successors, (556) [2024-11-16 09:56:23,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4426 states to 4426 states and 5463 transitions. [2024-11-16 09:56:23,638 INFO L78 Accepts]: Start accepts. Automaton has 4426 states and 5463 transitions. Word has length 83 [2024-11-16 09:56:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:23,640 INFO L471 AbstractCegarLoop]: Abstraction has 4426 states and 5463 transitions. [2024-11-16 09:56:23,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 09:56:23,640 INFO L276 IsEmpty]: Start isEmpty. Operand 4426 states and 5463 transitions. [2024-11-16 09:56:23,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 09:56:23,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:23,642 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:23,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:56:23,642 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:23,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:23,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1477277493, now seen corresponding path program 1 times [2024-11-16 09:56:23,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:23,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659179882] [2024-11-16 09:56:23,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:23,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:23,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659179882] [2024-11-16 09:56:23,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659179882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:23,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:23,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573761315] [2024-11-16 09:56:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:23,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:23,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:23,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:23,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:23,781 INFO L87 Difference]: Start difference. First operand 4426 states and 5463 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:25,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:25,043 INFO L93 Difference]: Finished difference Result 5571 states and 6817 transitions. [2024-11-16 09:56:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:56:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 86 [2024-11-16 09:56:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:25,065 INFO L225 Difference]: With dead ends: 5571 [2024-11-16 09:56:25,066 INFO L226 Difference]: Without dead ends: 5567 [2024-11-16 09:56:25,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:56:25,069 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 2085 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:25,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 1647 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:25,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5567 states. [2024-11-16 09:56:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5567 to 4918. [2024-11-16 09:56:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4918 states, 3997 states have (on average 1.2366775081310983) internal successors, (4943), 4044 states have internal predecessors, (4943), 460 states have call successors, (460), 379 states have call predecessors, (460), 459 states have return successors, (633), 497 states have call predecessors, (633), 459 states have call successors, (633) [2024-11-16 09:56:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4918 states to 4918 states and 6036 transitions. [2024-11-16 09:56:25,432 INFO L78 Accepts]: Start accepts. Automaton has 4918 states and 6036 transitions. Word has length 86 [2024-11-16 09:56:25,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:25,432 INFO L471 AbstractCegarLoop]: Abstraction has 4918 states and 6036 transitions. [2024-11-16 09:56:25,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4918 states and 6036 transitions. [2024-11-16 09:56:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 09:56:25,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:25,434 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:25,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:56:25,435 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:25,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1469573701, now seen corresponding path program 1 times [2024-11-16 09:56:25,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:25,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739392333] [2024-11-16 09:56:25,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:25,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:25,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:25,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739392333] [2024-11-16 09:56:25,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739392333] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:56:25,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399058880] [2024-11-16 09:56:25,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:25,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:56:25,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:56:25,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:56:25,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:56:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:25,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 09:56:25,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:56:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:26,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:56:26,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:26,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399058880] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:56:26,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:56:26,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-16 09:56:26,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789965631] [2024-11-16 09:56:26,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:56:26,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 09:56:26,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:26,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 09:56:26,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:26,149 INFO L87 Difference]: Start difference. First operand 4918 states and 6036 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 09:56:28,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:28,538 INFO L93 Difference]: Finished difference Result 9624 states and 11633 transitions. [2024-11-16 09:56:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-16 09:56:28,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 87 [2024-11-16 09:56:28,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:28,584 INFO L225 Difference]: With dead ends: 9624 [2024-11-16 09:56:28,584 INFO L226 Difference]: Without dead ends: 9620 [2024-11-16 09:56:28,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2024-11-16 09:56:28,590 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 1794 mSDsluCounter, 2832 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:28,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1857 Valid, 3390 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 09:56:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9620 states. [2024-11-16 09:56:29,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9620 to 8664. [2024-11-16 09:56:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8664 states, 7001 states have (on average 1.2219682902442508) internal successors, (8555), 7083 states have internal predecessors, (8555), 819 states have call successors, (819), 693 states have call predecessors, (819), 842 states have return successors, (1134), 890 states have call predecessors, (1134), 818 states have call successors, (1134) [2024-11-16 09:56:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8664 states to 8664 states and 10508 transitions. [2024-11-16 09:56:29,382 INFO L78 Accepts]: Start accepts. Automaton has 8664 states and 10508 transitions. Word has length 87 [2024-11-16 09:56:29,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:29,383 INFO L471 AbstractCegarLoop]: Abstraction has 8664 states and 10508 transitions. [2024-11-16 09:56:29,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 7 states have internal predecessors, (145), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 09:56:29,384 INFO L276 IsEmpty]: Start isEmpty. Operand 8664 states and 10508 transitions. [2024-11-16 09:56:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 09:56:29,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:29,386 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:29,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 09:56:29,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 09:56:29,587 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:29,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:29,588 INFO L85 PathProgramCache]: Analyzing trace with hash 786814419, now seen corresponding path program 2 times [2024-11-16 09:56:29,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:29,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020193357] [2024-11-16 09:56:29,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:29,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:29,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:29,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020193357] [2024-11-16 09:56:29,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020193357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:29,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:29,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:29,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518042024] [2024-11-16 09:56:29,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:29,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:29,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:29,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:29,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:29,657 INFO L87 Difference]: Start difference. First operand 8664 states and 10508 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:30,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:30,583 INFO L93 Difference]: Finished difference Result 11550 states and 14009 transitions. [2024-11-16 09:56:30,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:56:30,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 92 [2024-11-16 09:56:30,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:30,609 INFO L225 Difference]: With dead ends: 11550 [2024-11-16 09:56:30,609 INFO L226 Difference]: Without dead ends: 4764 [2024-11-16 09:56:30,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:30,626 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 1603 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:30,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 1352 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:56:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2024-11-16 09:56:30,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3630. [2024-11-16 09:56:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3630 states, 2973 states have (on average 1.231079717457114) internal successors, (3660), 3001 states have internal predecessors, (3660), 338 states have call successors, (338), 275 states have call predecessors, (338), 317 states have return successors, (433), 356 states have call predecessors, (433), 337 states have call successors, (433) [2024-11-16 09:56:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 4431 transitions. [2024-11-16 09:56:30,981 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 4431 transitions. Word has length 92 [2024-11-16 09:56:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:30,982 INFO L471 AbstractCegarLoop]: Abstraction has 3630 states and 4431 transitions. [2024-11-16 09:56:30,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 09:56:30,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 4431 transitions. [2024-11-16 09:56:30,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:56:30,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:30,985 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:30,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:56:30,985 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:30,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:30,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1894765357, now seen corresponding path program 1 times [2024-11-16 09:56:30,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:30,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858948185] [2024-11-16 09:56:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:56:31,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:31,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858948185] [2024-11-16 09:56:31,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858948185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:31,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:31,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:56:31,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276438253] [2024-11-16 09:56:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:31,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:56:31,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:56:31,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:56:31,129 INFO L87 Difference]: Start difference. First operand 3630 states and 4431 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:32,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:32,751 INFO L93 Difference]: Finished difference Result 9954 states and 11962 transitions. [2024-11-16 09:56:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 09:56:32,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 94 [2024-11-16 09:56:32,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:32,774 INFO L225 Difference]: With dead ends: 9954 [2024-11-16 09:56:32,774 INFO L226 Difference]: Without dead ends: 5875 [2024-11-16 09:56:32,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-16 09:56:32,786 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 1497 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:32,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 2496 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:56:32,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5875 states. [2024-11-16 09:56:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5875 to 5610. [2024-11-16 09:56:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5610 states, 4518 states have (on average 1.2009738822487825) internal successors, (5426), 4583 states have internal predecessors, (5426), 538 states have call successors, (538), 447 states have call predecessors, (538), 552 states have return successors, (783), 582 states have call predecessors, (783), 537 states have call successors, (783) [2024-11-16 09:56:33,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5610 states to 5610 states and 6747 transitions. [2024-11-16 09:56:33,334 INFO L78 Accepts]: Start accepts. Automaton has 5610 states and 6747 transitions. Word has length 94 [2024-11-16 09:56:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:33,334 INFO L471 AbstractCegarLoop]: Abstraction has 5610 states and 6747 transitions. [2024-11-16 09:56:33,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5610 states and 6747 transitions. [2024-11-16 09:56:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 09:56:33,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:33,337 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:33,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:56:33,337 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:33,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:33,338 INFO L85 PathProgramCache]: Analyzing trace with hash 444275303, now seen corresponding path program 1 times [2024-11-16 09:56:33,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742576533] [2024-11-16 09:56:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:33,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 09:56:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 09:56:33,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:33,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742576533] [2024-11-16 09:56:33,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742576533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:33,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:33,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:56:33,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762606156] [2024-11-16 09:56:33,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:33,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:56:33,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:33,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:56:33,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:33,492 INFO L87 Difference]: Start difference. First operand 5610 states and 6747 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:35,044 INFO L93 Difference]: Finished difference Result 9281 states and 11076 transitions. [2024-11-16 09:56:35,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 09:56:35,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 112 [2024-11-16 09:56:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:35,063 INFO L225 Difference]: With dead ends: 9281 [2024-11-16 09:56:35,063 INFO L226 Difference]: Without dead ends: 4655 [2024-11-16 09:56:35,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-16 09:56:35,074 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 2011 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:35,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 2525 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:56:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2024-11-16 09:56:35,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4209. [2024-11-16 09:56:35,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 3383 states have (on average 1.1939107301211942) internal successors, (4039), 3436 states have internal predecessors, (4039), 403 states have call successors, (403), 329 states have call predecessors, (403), 421 states have return successors, (552), 446 states have call predecessors, (552), 402 states have call successors, (552) [2024-11-16 09:56:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 4994 transitions. [2024-11-16 09:56:35,506 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 4994 transitions. Word has length 112 [2024-11-16 09:56:35,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:35,507 INFO L471 AbstractCegarLoop]: Abstraction has 4209 states and 4994 transitions. [2024-11-16 09:56:35,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 6 states have internal predecessors, (91), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 09:56:35,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 4994 transitions. [2024-11-16 09:56:35,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 09:56:35,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:35,512 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:35,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:56:35,512 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:35,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1728688998, now seen corresponding path program 1 times [2024-11-16 09:56:35,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:35,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830631745] [2024-11-16 09:56:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:35,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 09:56:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 09:56:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 09:56:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 09:56:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 09:56:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 09:56:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 25 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 09:56:35,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:35,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830631745] [2024-11-16 09:56:35,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830631745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:56:35,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288991478] [2024-11-16 09:56:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:35,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:56:35,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:56:35,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:56:35,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:56:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:35,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 09:56:35,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:56:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:56:35,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 09:56:35,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288991478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:35,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 09:56:35,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-16 09:56:35,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793051221] [2024-11-16 09:56:35,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:35,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:35,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:35,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:35,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:56:35,884 INFO L87 Difference]: Start difference. First operand 4209 states and 4994 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:56:36,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:36,024 INFO L93 Difference]: Finished difference Result 6210 states and 7312 transitions. [2024-11-16 09:56:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 09:56:36,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 159 [2024-11-16 09:56:36,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:36,033 INFO L225 Difference]: With dead ends: 6210 [2024-11-16 09:56:36,033 INFO L226 Difference]: Without dead ends: 2422 [2024-11-16 09:56:36,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:56:36,040 INFO L432 NwaCegarLoop]: 748 mSDtfsCounter, 0 mSDsluCounter, 2983 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3731 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:36,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3731 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:56:36,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2024-11-16 09:56:36,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2422. [2024-11-16 09:56:36,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2042 states have (on average 1.208619000979432) internal successors, (2468), 2058 states have internal predecessors, (2468), 192 states have call successors, (192), 143 states have call predecessors, (192), 186 states have return successors, (259), 221 states have call predecessors, (259), 191 states have call successors, (259) [2024-11-16 09:56:36,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 2919 transitions. [2024-11-16 09:56:36,224 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 2919 transitions. Word has length 159 [2024-11-16 09:56:36,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:36,225 INFO L471 AbstractCegarLoop]: Abstraction has 2422 states and 2919 transitions. [2024-11-16 09:56:36,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-16 09:56:36,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 2919 transitions. [2024-11-16 09:56:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:56:36,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:36,229 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:36,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:56:36,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 09:56:36,430 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:36,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1048379118, now seen corresponding path program 1 times [2024-11-16 09:56:36,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:36,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738311078] [2024-11-16 09:56:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 09:56:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 09:56:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 09:56:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 09:56:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 09:56:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 09:56:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 09:56:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-16 09:56:36,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:36,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738311078] [2024-11-16 09:56:36,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738311078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:36,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:36,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:36,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787758676] [2024-11-16 09:56:36,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:36,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:36,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:36,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:36,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:36,517 INFO L87 Difference]: Start difference. First operand 2422 states and 2919 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 09:56:37,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:37,347 INFO L93 Difference]: Finished difference Result 2471 states and 2970 transitions. [2024-11-16 09:56:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:37,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 161 [2024-11-16 09:56:37,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:37,355 INFO L225 Difference]: With dead ends: 2471 [2024-11-16 09:56:37,355 INFO L226 Difference]: Without dead ends: 2062 [2024-11-16 09:56:37,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:56:37,356 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 731 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:37,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1884 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:56:37,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2024-11-16 09:56:37,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 2017. [2024-11-16 09:56:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1721 states have (on average 1.2248692620569437) internal successors, (2108), 1734 states have internal predecessors, (2108), 151 states have call successors, (151), 108 states have call predecessors, (151), 143 states have return successors, (204), 175 states have call predecessors, (204), 150 states have call successors, (204) [2024-11-16 09:56:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2463 transitions. [2024-11-16 09:56:37,508 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2463 transitions. Word has length 161 [2024-11-16 09:56:37,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:37,509 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2463 transitions. [2024-11-16 09:56:37,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 09:56:37,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2463 transitions. [2024-11-16 09:56:37,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 09:56:37,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:37,512 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:37,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:56:37,513 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:37,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:37,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1718638868, now seen corresponding path program 1 times [2024-11-16 09:56:37,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:37,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468116354] [2024-11-16 09:56:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:37,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 09:56:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 09:56:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 09:56:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 09:56:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 09:56:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 09:56:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 09:56:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:56:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 09:56:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 09:56:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-16 09:56:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 09:56:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 09:56:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 09:56:37,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:37,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468116354] [2024-11-16 09:56:37,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468116354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:37,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:37,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:37,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706529207] [2024-11-16 09:56:37,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:37,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:37,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:37,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:37,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:37,634 INFO L87 Difference]: Start difference. First operand 2017 states and 2463 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 09:56:38,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:38,508 INFO L93 Difference]: Finished difference Result 3478 states and 4157 transitions. [2024-11-16 09:56:38,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:56:38,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 181 [2024-11-16 09:56:38,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:38,517 INFO L225 Difference]: With dead ends: 3478 [2024-11-16 09:56:38,517 INFO L226 Difference]: Without dead ends: 1994 [2024-11-16 09:56:38,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:38,520 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 651 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:38,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 2491 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:56:38,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2024-11-16 09:56:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1896. [2024-11-16 09:56:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1624 states have (on average 1.2321428571428572) internal successors, (2001), 1637 states have internal predecessors, (2001), 139 states have call successors, (139), 98 states have call predecessors, (139), 131 states have return successors, (186), 161 states have call predecessors, (186), 138 states have call successors, (186) [2024-11-16 09:56:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2326 transitions. [2024-11-16 09:56:38,662 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2326 transitions. Word has length 181 [2024-11-16 09:56:38,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:38,663 INFO L471 AbstractCegarLoop]: Abstraction has 1896 states and 2326 transitions. [2024-11-16 09:56:38,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 09:56:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2326 transitions. [2024-11-16 09:56:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:56:38,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:38,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:38,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:56:38,667 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:38,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:38,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1584496940, now seen corresponding path program 1 times [2024-11-16 09:56:38,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:38,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180874951] [2024-11-16 09:56:38,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:38,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:38,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:38,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:56:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:38,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:56:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:38,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:56:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:38,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:56:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:38,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:38,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180874951] [2024-11-16 09:56:38,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180874951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:38,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:38,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:56:38,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318009945] [2024-11-16 09:56:38,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:38,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:56:38,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:38,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:56:38,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:56:38,834 INFO L87 Difference]: Start difference. First operand 1896 states and 2326 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:40,714 INFO L93 Difference]: Finished difference Result 2421 states and 3140 transitions. [2024-11-16 09:56:40,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:56:40,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:56:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:40,723 INFO L225 Difference]: With dead ends: 2421 [2024-11-16 09:56:40,723 INFO L226 Difference]: Without dead ends: 2027 [2024-11-16 09:56:40,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:56:40,725 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 1111 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:40,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 1138 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:56:40,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-16 09:56:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1896. [2024-11-16 09:56:40,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1624 states have (on average 1.2315270935960592) internal successors, (2000), 1637 states have internal predecessors, (2000), 139 states have call successors, (139), 98 states have call predecessors, (139), 131 states have return successors, (186), 161 states have call predecessors, (186), 138 states have call successors, (186) [2024-11-16 09:56:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2325 transitions. [2024-11-16 09:56:40,977 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2325 transitions. Word has length 172 [2024-11-16 09:56:40,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:40,977 INFO L471 AbstractCegarLoop]: Abstraction has 1896 states and 2325 transitions. [2024-11-16 09:56:40,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:40,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2325 transitions. [2024-11-16 09:56:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:56:40,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:40,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:40,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:56:40,981 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:40,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:40,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1660601141, now seen corresponding path program 1 times [2024-11-16 09:56:40,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:40,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300030456] [2024-11-16 09:56:40,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:40,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:41,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:41,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:56:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:41,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:56:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:41,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:56:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:41,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:56:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:41,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:41,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:41,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300030456] [2024-11-16 09:56:41,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300030456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:41,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:41,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:56:41,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804008171] [2024-11-16 09:56:41,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:41,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:56:41,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:41,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:56:41,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:56:41,218 INFO L87 Difference]: Start difference. First operand 1896 states and 2325 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:43,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:43,742 INFO L93 Difference]: Finished difference Result 2948 states and 3960 transitions. [2024-11-16 09:56:43,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:56:43,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:56:43,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:43,751 INFO L225 Difference]: With dead ends: 2948 [2024-11-16 09:56:43,751 INFO L226 Difference]: Without dead ends: 2561 [2024-11-16 09:56:43,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:56:43,754 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 1731 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:43,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 1715 Invalid, 2398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 09:56:43,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2024-11-16 09:56:44,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2299. [2024-11-16 09:56:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2000 states have (on average 1.284) internal successors, (2568), 2014 states have internal predecessors, (2568), 159 states have call successors, (159), 104 states have call predecessors, (159), 138 states have return successors, (209), 181 states have call predecessors, (209), 158 states have call successors, (209) [2024-11-16 09:56:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 2936 transitions. [2024-11-16 09:56:44,031 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 2936 transitions. Word has length 172 [2024-11-16 09:56:44,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:44,032 INFO L471 AbstractCegarLoop]: Abstraction has 2299 states and 2936 transitions. [2024-11-16 09:56:44,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 2936 transitions. [2024-11-16 09:56:44,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:56:44,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:44,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:44,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:56:44,035 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:44,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:44,036 INFO L85 PathProgramCache]: Analyzing trace with hash 21114803, now seen corresponding path program 1 times [2024-11-16 09:56:44,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:44,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643027369] [2024-11-16 09:56:44,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:44,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:56:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:56:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:56:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:56:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:44,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:44,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643027369] [2024-11-16 09:56:44,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643027369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:44,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:44,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:44,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324996599] [2024-11-16 09:56:44,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:44,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:44,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:44,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:44,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:44,309 INFO L87 Difference]: Start difference. First operand 2299 states and 2936 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:47,892 INFO L93 Difference]: Finished difference Result 3902 states and 5431 transitions. [2024-11-16 09:56:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:56:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:47,905 INFO L225 Difference]: With dead ends: 3902 [2024-11-16 09:56:47,906 INFO L226 Difference]: Without dead ends: 3112 [2024-11-16 09:56:47,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:47,909 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 1760 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 3660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:47,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1788 Valid, 3189 Invalid, 3660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 09:56:47,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2024-11-16 09:56:48,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 2677. [2024-11-16 09:56:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2351 states have (on average 1.3126329221607826) internal successors, (3086), 2366 states have internal predecessors, (3086), 179 states have call successors, (179), 110 states have call predecessors, (179), 145 states have return successors, (231), 202 states have call predecessors, (231), 178 states have call successors, (231) [2024-11-16 09:56:48,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3496 transitions. [2024-11-16 09:56:48,260 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3496 transitions. Word has length 172 [2024-11-16 09:56:48,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:48,260 INFO L471 AbstractCegarLoop]: Abstraction has 2677 states and 3496 transitions. [2024-11-16 09:56:48,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:48,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3496 transitions. [2024-11-16 09:56:48,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:56:48,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:48,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:48,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:56:48,264 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:48,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:48,264 INFO L85 PathProgramCache]: Analyzing trace with hash 214046004, now seen corresponding path program 1 times [2024-11-16 09:56:48,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:48,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159761773] [2024-11-16 09:56:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:48,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:48,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:48,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:56:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:48,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:56:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:48,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:56:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:48,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:56:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:48,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:48,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159761773] [2024-11-16 09:56:48,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159761773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:48,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:48,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:48,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907495548] [2024-11-16 09:56:48,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:48,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:48,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:48,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:48,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:48,510 INFO L87 Difference]: Start difference. First operand 2677 states and 3496 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:51,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:51,900 INFO L93 Difference]: Finished difference Result 5311 states and 7585 transitions. [2024-11-16 09:56:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:51,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:56:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:51,915 INFO L225 Difference]: With dead ends: 5311 [2024-11-16 09:56:51,915 INFO L226 Difference]: Without dead ends: 4143 [2024-11-16 09:56:51,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:51,922 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1758 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 3563 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 3658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:51,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 3187 Invalid, 3658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3563 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 09:56:51,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2024-11-16 09:56:52,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 3434. [2024-11-16 09:56:52,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3054 states have (on average 1.3500327439423707) internal successors, (4123), 3071 states have internal predecessors, (4123), 219 states have call successors, (219), 122 states have call predecessors, (219), 159 states have return successors, (279), 244 states have call predecessors, (279), 218 states have call successors, (279) [2024-11-16 09:56:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4621 transitions. [2024-11-16 09:56:52,210 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4621 transitions. Word has length 172 [2024-11-16 09:56:52,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:52,210 INFO L471 AbstractCegarLoop]: Abstraction has 3434 states and 4621 transitions. [2024-11-16 09:56:52,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4621 transitions. [2024-11-16 09:56:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:56:52,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:52,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:52,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:56:52,215 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:52,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:52,215 INFO L85 PathProgramCache]: Analyzing trace with hash 81722259, now seen corresponding path program 1 times [2024-11-16 09:56:52,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:52,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920212331] [2024-11-16 09:56:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:52,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:52,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:52,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:56:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:52,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:56:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:52,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:56:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:52,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:56:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:52,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:52,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:52,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920212331] [2024-11-16 09:56:52,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920212331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:52,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:52,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:52,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932884567] [2024-11-16 09:56:52,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:52,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:52,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:52,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:52,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:52,442 INFO L87 Difference]: Start difference. First operand 3434 states and 4621 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:56:56,031 INFO L93 Difference]: Finished difference Result 8032 states and 11714 transitions. [2024-11-16 09:56:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:56:56,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:56:56,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:56:56,055 INFO L225 Difference]: With dead ends: 8032 [2024-11-16 09:56:56,055 INFO L226 Difference]: Without dead ends: 6107 [2024-11-16 09:56:56,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:56:56,065 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1754 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 3554 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 3649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:56:56,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 3187 Invalid, 3649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3554 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 09:56:56,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6107 states. [2024-11-16 09:56:56,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6107 to 4949. [2024-11-16 09:56:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4949 states, 4461 states have (on average 1.389150414705223) internal successors, (6197), 4482 states have internal predecessors, (6197), 299 states have call successors, (299), 146 states have call predecessors, (299), 187 states have return successors, (381), 328 states have call predecessors, (381), 298 states have call successors, (381) [2024-11-16 09:56:56,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4949 states to 4949 states and 6877 transitions. [2024-11-16 09:56:56,563 INFO L78 Accepts]: Start accepts. Automaton has 4949 states and 6877 transitions. Word has length 172 [2024-11-16 09:56:56,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:56:56,563 INFO L471 AbstractCegarLoop]: Abstraction has 4949 states and 6877 transitions. [2024-11-16 09:56:56,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:56:56,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4949 states and 6877 transitions. [2024-11-16 09:56:56,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:56:56,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:56:56,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:56:56,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:56:56,571 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:56:56,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:56:56,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1047285076, now seen corresponding path program 1 times [2024-11-16 09:56:56,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:56:56,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629367705] [2024-11-16 09:56:56,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:56:56,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:56:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:56,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:56:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:56,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:56:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:56,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:56:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:56,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:56:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:56,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:56:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:56:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:56:56,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:56:56,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629367705] [2024-11-16 09:56:56,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629367705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:56:56,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:56:56,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:56:56,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026327242] [2024-11-16 09:56:56,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:56:56,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:56:56,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:56:56,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:56:56,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:56:56,818 INFO L87 Difference]: Start difference. First operand 4949 states and 6877 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:00,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:00,381 INFO L93 Difference]: Finished difference Result 13473 states and 19988 transitions. [2024-11-16 09:57:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:57:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:57:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:00,414 INFO L225 Difference]: With dead ends: 13473 [2024-11-16 09:57:00,415 INFO L226 Difference]: Without dead ends: 10033 [2024-11-16 09:57:00,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:57:00,427 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1750 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1778 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 3640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:00,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1778 Valid, 3187 Invalid, 3640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 09:57:00,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10033 states. [2024-11-16 09:57:00,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10033 to 7984. [2024-11-16 09:57:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7984 states, 7280 states have (on average 1.4218406593406594) internal successors, (10351), 7309 states have internal predecessors, (10351), 459 states have call successors, (459), 194 states have call predecessors, (459), 243 states have return successors, (603), 496 states have call predecessors, (603), 458 states have call successors, (603) [2024-11-16 09:57:00,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7984 states to 7984 states and 11413 transitions. [2024-11-16 09:57:00,977 INFO L78 Accepts]: Start accepts. Automaton has 7984 states and 11413 transitions. Word has length 172 [2024-11-16 09:57:00,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:00,977 INFO L471 AbstractCegarLoop]: Abstraction has 7984 states and 11413 transitions. [2024-11-16 09:57:00,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 7984 states and 11413 transitions. [2024-11-16 09:57:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:57:00,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:00,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:00,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:57:00,983 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:00,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:00,983 INFO L85 PathProgramCache]: Analyzing trace with hash 385695603, now seen corresponding path program 1 times [2024-11-16 09:57:00,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:00,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035190479] [2024-11-16 09:57:00,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:00,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:01,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:01,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:01,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:57:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:01,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:57:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:01,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:57:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:01,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:01,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035190479] [2024-11-16 09:57:01,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035190479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:01,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:01,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:01,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203849561] [2024-11-16 09:57:01,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:01,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:01,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:01,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:01,197 INFO L87 Difference]: Start difference. First operand 7984 states and 11413 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:03,227 INFO L93 Difference]: Finished difference Result 16609 states and 24794 transitions. [2024-11-16 09:57:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:57:03,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:57:03,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:03,262 INFO L225 Difference]: With dead ends: 16609 [2024-11-16 09:57:03,262 INFO L226 Difference]: Without dead ends: 10134 [2024-11-16 09:57:03,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:57:03,279 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1546 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:03,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 1451 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:57:03,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10134 states. [2024-11-16 09:57:03,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10134 to 7984. [2024-11-16 09:57:03,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7984 states, 7280 states have (on average 1.4195054945054946) internal successors, (10334), 7309 states have internal predecessors, (10334), 459 states have call successors, (459), 194 states have call predecessors, (459), 243 states have return successors, (603), 496 states have call predecessors, (603), 458 states have call successors, (603) [2024-11-16 09:57:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7984 states to 7984 states and 11396 transitions. [2024-11-16 09:57:03,874 INFO L78 Accepts]: Start accepts. Automaton has 7984 states and 11396 transitions. Word has length 172 [2024-11-16 09:57:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:03,875 INFO L471 AbstractCegarLoop]: Abstraction has 7984 states and 11396 transitions. [2024-11-16 09:57:03,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:03,875 INFO L276 IsEmpty]: Start isEmpty. Operand 7984 states and 11396 transitions. [2024-11-16 09:57:03,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:57:03,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:03,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:03,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:57:03,882 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:03,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:03,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1334185332, now seen corresponding path program 1 times [2024-11-16 09:57:03,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:03,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400265583] [2024-11-16 09:57:03,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:03,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:03,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:04,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:04,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:57:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:04,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:57:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:04,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:57:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:04,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:04,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400265583] [2024-11-16 09:57:04,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400265583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:04,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:04,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:04,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818918517] [2024-11-16 09:57:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:04,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:04,160 INFO L87 Difference]: Start difference. First operand 7984 states and 11396 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:06,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:06,251 INFO L93 Difference]: Finished difference Result 16591 states and 24708 transitions. [2024-11-16 09:57:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:57:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:57:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:06,279 INFO L225 Difference]: With dead ends: 16591 [2024-11-16 09:57:06,280 INFO L226 Difference]: Without dead ends: 10116 [2024-11-16 09:57:06,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:57:06,297 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1338 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:06,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 1751 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 09:57:06,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10116 states. [2024-11-16 09:57:06,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10116 to 7984. [2024-11-16 09:57:06,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7984 states, 7280 states have (on average 1.4171703296703297) internal successors, (10317), 7309 states have internal predecessors, (10317), 459 states have call successors, (459), 194 states have call predecessors, (459), 243 states have return successors, (603), 496 states have call predecessors, (603), 458 states have call successors, (603) [2024-11-16 09:57:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7984 states to 7984 states and 11379 transitions. [2024-11-16 09:57:06,971 INFO L78 Accepts]: Start accepts. Automaton has 7984 states and 11379 transitions. Word has length 172 [2024-11-16 09:57:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:06,971 INFO L471 AbstractCegarLoop]: Abstraction has 7984 states and 11379 transitions. [2024-11-16 09:57:06,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7984 states and 11379 transitions. [2024-11-16 09:57:06,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:57:06,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:06,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:06,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 09:57:06,977 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:06,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1503329107, now seen corresponding path program 1 times [2024-11-16 09:57:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:06,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68340944] [2024-11-16 09:57:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:06,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:07,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:07,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:07,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:57:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:07,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:57:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:07,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:57:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:07,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68340944] [2024-11-16 09:57:07,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68340944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:07,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:07,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:07,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104588621] [2024-11-16 09:57:07,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:07,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:07,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:07,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:07,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:07,239 INFO L87 Difference]: Start difference. First operand 7984 states and 11379 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:09,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:09,181 INFO L93 Difference]: Finished difference Result 16572 states and 24620 transitions. [2024-11-16 09:57:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:57:09,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:57:09,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:09,212 INFO L225 Difference]: With dead ends: 16572 [2024-11-16 09:57:09,212 INFO L226 Difference]: Without dead ends: 10097 [2024-11-16 09:57:09,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:57:09,227 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1542 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:09,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 1451 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 09:57:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10097 states. [2024-11-16 09:57:09,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10097 to 7984. [2024-11-16 09:57:09,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7984 states, 7280 states have (on average 1.414835164835165) internal successors, (10300), 7309 states have internal predecessors, (10300), 459 states have call successors, (459), 194 states have call predecessors, (459), 243 states have return successors, (603), 496 states have call predecessors, (603), 458 states have call successors, (603) [2024-11-16 09:57:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7984 states to 7984 states and 11362 transitions. [2024-11-16 09:57:09,924 INFO L78 Accepts]: Start accepts. Automaton has 7984 states and 11362 transitions. Word has length 172 [2024-11-16 09:57:09,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:09,925 INFO L471 AbstractCegarLoop]: Abstraction has 7984 states and 11362 transitions. [2024-11-16 09:57:09,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 7984 states and 11362 transitions. [2024-11-16 09:57:09,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:57:09,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:09,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:09,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 09:57:09,932 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:09,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash -430877292, now seen corresponding path program 1 times [2024-11-16 09:57:09,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:09,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454630477] [2024-11-16 09:57:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:10,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:10,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:10,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:57:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:10,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:57:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:10,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:57:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:10,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:10,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454630477] [2024-11-16 09:57:10,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454630477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:10,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:10,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:10,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008963731] [2024-11-16 09:57:10,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:10,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:10,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:10,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:10,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:10,177 INFO L87 Difference]: Start difference. First operand 7984 states and 11362 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:13,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:57:13,999 INFO L93 Difference]: Finished difference Result 24295 states and 36230 transitions. [2024-11-16 09:57:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:57:14,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2024-11-16 09:57:14,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:57:14,040 INFO L225 Difference]: With dead ends: 24295 [2024-11-16 09:57:14,040 INFO L226 Difference]: Without dead ends: 17820 [2024-11-16 09:57:14,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:57:14,054 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1722 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 3464 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:57:14,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 3187 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3464 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 09:57:14,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2024-11-16 09:57:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 14115. [2024-11-16 09:57:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14115 states, 12979 states have (on average 1.4353185915709994) internal successors, (18629), 13024 states have internal predecessors, (18629), 779 states have call successors, (779), 290 states have call predecessors, (779), 355 states have return successors, (1101), 832 states have call predecessors, (1101), 778 states have call successors, (1101) [2024-11-16 09:57:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14115 states to 14115 states and 20509 transitions. [2024-11-16 09:57:15,266 INFO L78 Accepts]: Start accepts. Automaton has 14115 states and 20509 transitions. Word has length 172 [2024-11-16 09:57:15,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:57:15,266 INFO L471 AbstractCegarLoop]: Abstraction has 14115 states and 20509 transitions. [2024-11-16 09:57:15,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:57:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 14115 states and 20509 transitions. [2024-11-16 09:57:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 09:57:15,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:57:15,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:57:15,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 09:57:15,273 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:57:15,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:57:15,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1446391603, now seen corresponding path program 1 times [2024-11-16 09:57:15,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:57:15,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054391365] [2024-11-16 09:57:15,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:57:15,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:57:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:15,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:57:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:15,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-16 09:57:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:15,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 09:57:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:15,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 09:57:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:15,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 09:57:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:57:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:57:15,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:57:15,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054391365] [2024-11-16 09:57:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054391365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:57:15,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:57:15,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:57:15,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924755203] [2024-11-16 09:57:15,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:57:15,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:57:15,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:57:15,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:57:15,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:57:15,481 INFO L87 Difference]: Start difference. First operand 14115 states and 20509 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)