./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.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 b77809112787d30d81c7c3c0f8f2a230e1ec99494e3dfc2397bd48db4468ad64 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:06:54,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:06:54,465 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 00:06:54,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:06:54,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:06:54,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:06:54,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:06:54,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:06:54,506 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:06:54,509 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:06:54,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:06:54,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:06:54,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:06:54,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:06:54,511 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:06:54,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:06:54,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:06:54,512 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 00:06:54,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:06:54,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 00:06:54,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:06:54,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:06:54,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:06:54,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:06:54,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:06:54,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 00:06:54,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:06:54,516 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:06:54,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:06:54,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:06:54,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:06:54,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:06:54,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:06:54,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:06:54,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:06:54,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:06:54,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:06:54,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:06:54,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:06:54,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:06:54,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:06:54,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:06:54,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b77809112787d30d81c7c3c0f8f2a230e1ec99494e3dfc2397bd48db4468ad64 [2024-11-20 00:06:54,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:06:54,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:06:54,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:06:54,806 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:06:54,806 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:06:54,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2024-11-20 00:06:56,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:06:56,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:06:56,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2024-11-20 00:06:56,607 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863ced2f3/990752a270ff4808a1a40d1b9fe4e36d/FLAG656c8a1e3 [2024-11-20 00:06:56,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863ced2f3/990752a270ff4808a1a40d1b9fe4e36d [2024-11-20 00:06:56,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:06:56,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:06:56,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:06:56,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:06:56,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:06:56,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:56" (1/1) ... [2024-11-20 00:06:56,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302caea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:56, skipping insertion in model container [2024-11-20 00:06:56,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:56" (1/1) ... [2024-11-20 00:06:56,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:06:56,892 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_1.cil-2+token_ring.13.cil-2.c[913,926] [2024-11-20 00:06:56,961 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_1.cil-2+token_ring.13.cil-2.c[5977,5990] [2024-11-20 00:06:57,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:06:57,126 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:06:57,142 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_1.cil-2+token_ring.13.cil-2.c[913,926] [2024-11-20 00:06:57,161 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_1.cil-2+token_ring.13.cil-2.c[5977,5990] [2024-11-20 00:06:57,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:06:57,307 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:06:57,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57 WrapperNode [2024-11-20 00:06:57,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:06:57,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:06:57,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:06:57,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:06:57,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,380 INFO L138 Inliner]: procedures = 74, calls = 87, calls flagged for inlining = 49, calls inlined = 49, statements flattened = 1143 [2024-11-20 00:06:57,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:06:57,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:06:57,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:06:57,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:06:57,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,402 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,433 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]. [2024-11-20 00:06:57,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:06:57,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:06:57,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:06:57,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:06:57,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (1/1) ... [2024-11-20 00:06:57,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:06:57,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:06:57,543 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) [2024-11-20 00:06:57,549 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 [2024-11-20 00:06:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:06:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-20 00:06:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-20 00:06:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-11-20 00:06:57,600 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-11-20 00:06:57,600 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-20 00:06:57,600 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-20 00:06:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-20 00:06:57,601 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-20 00:06:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-20 00:06:57,601 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-20 00:06:57,601 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-20 00:06:57,601 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-20 00:06:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-20 00:06:57,602 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-20 00:06:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:06:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-20 00:06:57,603 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-20 00:06:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:06:57,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:06:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-20 00:06:57,604 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-20 00:06:57,767 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:06:57,770 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:06:58,944 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live. [2024-11-20 00:06:58,944 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:06:58,976 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:06:58,977 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-20 00:06:58,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:58 BoogieIcfgContainer [2024-11-20 00:06:58,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:06:58,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:06:58,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:06:58,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:06:58,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:06:56" (1/3) ... [2024-11-20 00:06:58,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c09f7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:58, skipping insertion in model container [2024-11-20 00:06:58,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:57" (2/3) ... [2024-11-20 00:06:58,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c09f7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:58, skipping insertion in model container [2024-11-20 00:06:58,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:58" (3/3) ... [2024-11-20 00:06:58,987 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.13.cil-2.c [2024-11-20 00:06:59,007 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:06:59,008 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 00:06:59,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:06:59,115 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;@2f8f0e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:06:59,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 00:06:59,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 493 states, 448 states have (on average 1.6316964285714286) internal successors, (731), 453 states have internal predecessors, (731), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-20 00:06:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-20 00:06:59,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:06:59,141 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] [2024-11-20 00:06:59,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:06:59,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:06:59,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1278392636, now seen corresponding path program 1 times [2024-11-20 00:06:59,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:06:59,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882897523] [2024-11-20 00:06:59,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:06:59,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:06:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:59,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:06:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:59,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 00:06:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:06:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:06:59,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:06:59,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882897523] [2024-11-20 00:06:59,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882897523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:06:59,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:06:59,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:06:59,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407515805] [2024-11-20 00:06:59,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:06:59,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:06:59,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:06:59,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:06:59,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:06:59,562 INFO L87 Difference]: Start difference. First operand has 493 states, 448 states have (on average 1.6316964285714286) internal successors, (731), 453 states have internal predecessors, (731), 33 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 00:07:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:00,429 INFO L93 Difference]: Finished difference Result 968 states and 1559 transitions. [2024-11-20 00:07:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:07:00,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2024-11-20 00:07:00,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:00,451 INFO L225 Difference]: With dead ends: 968 [2024-11-20 00:07:00,452 INFO L226 Difference]: Without dead ends: 492 [2024-11-20 00:07:00,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:00,466 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 407 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:00,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1172 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:07:00,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-20 00:07:00,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 483. [2024-11-20 00:07:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 440 states have (on average 1.540909090909091) internal successors, (678), 443 states have internal predecessors, (678), 33 states have call successors, (33), 9 states have call predecessors, (33), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-20 00:07:00,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 742 transitions. [2024-11-20 00:07:00,559 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 742 transitions. Word has length 44 [2024-11-20 00:07:00,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:00,560 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 742 transitions. [2024-11-20 00:07:00,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 00:07:00,561 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 742 transitions. [2024-11-20 00:07:00,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-20 00:07:00,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:00,563 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] [2024-11-20 00:07:00,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:07:00,564 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:00,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash 566974530, now seen corresponding path program 1 times [2024-11-20 00:07:00,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:00,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714856502] [2024-11-20 00:07:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:00,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 00:07:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:00,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:00,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:00,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714856502] [2024-11-20 00:07:00,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714856502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:00,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:00,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:07:00,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765268591] [2024-11-20 00:07:00,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:00,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:07:00,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:00,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:07:00,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:07:00,730 INFO L87 Difference]: Start difference. First operand 483 states and 742 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:07:01,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:01,329 INFO L93 Difference]: Finished difference Result 615 states and 927 transitions. [2024-11-20 00:07:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:07:01,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-11-20 00:07:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:01,334 INFO L225 Difference]: With dead ends: 615 [2024-11-20 00:07:01,337 INFO L226 Difference]: Without dead ends: 553 [2024-11-20 00:07:01,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:01,340 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 1008 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:01,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 887 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:07:01,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-20 00:07:01,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 547. [2024-11-20 00:07:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 497 states have (on average 1.517102615694165) internal successors, (754), 501 states have internal predecessors, (754), 37 states have call successors, (37), 11 states have call predecessors, (37), 11 states have return successors, (41), 35 states have call predecessors, (41), 35 states have call successors, (41) [2024-11-20 00:07:01,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 832 transitions. [2024-11-20 00:07:01,383 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 832 transitions. Word has length 44 [2024-11-20 00:07:01,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:01,384 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 832 transitions. [2024-11-20 00:07:01,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:07:01,385 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 832 transitions. [2024-11-20 00:07:01,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-20 00:07:01,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:01,390 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] [2024-11-20 00:07:01,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:07:01,390 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:01,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:01,392 INFO L85 PathProgramCache]: Analyzing trace with hash -213176290, now seen corresponding path program 1 times [2024-11-20 00:07:01,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:01,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799654879] [2024-11-20 00:07:01,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:01,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 00:07:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:01,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:01,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799654879] [2024-11-20 00:07:01,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799654879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:01,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:01,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:07:01,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989510906] [2024-11-20 00:07:01,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:01,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:07:01,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:01,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:07:01,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:07:01,521 INFO L87 Difference]: Start difference. First operand 547 states and 832 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:07:02,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:02,176 INFO L93 Difference]: Finished difference Result 795 states and 1172 transitions. [2024-11-20 00:07:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:07:02,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-20 00:07:02,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:02,182 INFO L225 Difference]: With dead ends: 795 [2024-11-20 00:07:02,182 INFO L226 Difference]: Without dead ends: 671 [2024-11-20 00:07:02,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:02,186 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 388 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:02,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1275 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:07:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2024-11-20 00:07:02,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 614. [2024-11-20 00:07:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 558 states have (on average 1.5017921146953406) internal successors, (838), 562 states have internal predecessors, (838), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (44), 38 states have call predecessors, (44), 38 states have call successors, (44) [2024-11-20 00:07:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 922 transitions. [2024-11-20 00:07:02,227 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 922 transitions. Word has length 45 [2024-11-20 00:07:02,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:02,228 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 922 transitions. [2024-11-20 00:07:02,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:07:02,228 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 922 transitions. [2024-11-20 00:07:02,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-20 00:07:02,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:02,233 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] [2024-11-20 00:07:02,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:07:02,234 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:02,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:02,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1497533751, now seen corresponding path program 1 times [2024-11-20 00:07:02,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:02,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281428756] [2024-11-20 00:07:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:02,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 00:07:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:02,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:02,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281428756] [2024-11-20 00:07:02,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281428756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:02,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:02,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:07:02,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651822109] [2024-11-20 00:07:02,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:02,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:07:02,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:02,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:07:02,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:07:02,300 INFO L87 Difference]: Start difference. First operand 614 states and 922 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:07:02,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:02,820 INFO L93 Difference]: Finished difference Result 1022 states and 1481 transitions. [2024-11-20 00:07:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:07:02,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-20 00:07:02,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:02,848 INFO L225 Difference]: With dead ends: 1022 [2024-11-20 00:07:02,848 INFO L226 Difference]: Without dead ends: 831 [2024-11-20 00:07:02,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:02,850 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 1026 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:02,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 910 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:07:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-11-20 00:07:02,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 779. [2024-11-20 00:07:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 704 states have (on average 1.4602272727272727) internal successors, (1028), 711 states have internal predecessors, (1028), 51 states have call successors, (51), 21 states have call predecessors, (51), 22 states have return successors, (61), 47 states have call predecessors, (61), 49 states have call successors, (61) [2024-11-20 00:07:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1140 transitions. [2024-11-20 00:07:02,889 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1140 transitions. Word has length 45 [2024-11-20 00:07:02,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:02,890 INFO L471 AbstractCegarLoop]: Abstraction has 779 states and 1140 transitions. [2024-11-20 00:07:02,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 00:07:02,890 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1140 transitions. [2024-11-20 00:07:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 00:07:02,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:02,892 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:07:02,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:07:02,892 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:02,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:02,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1840216878, now seen corresponding path program 1 times [2024-11-20 00:07:02,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:02,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756289989] [2024-11-20 00:07:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:02,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:02,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 00:07:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:03,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 00:07:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 00:07:03,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:03,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756289989] [2024-11-20 00:07:03,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756289989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:03,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:03,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:07:03,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657901708] [2024-11-20 00:07:03,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:03,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:07:03,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:03,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:07:03,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:07:03,018 INFO L87 Difference]: Start difference. First operand 779 states and 1140 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 00:07:03,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:03,654 INFO L93 Difference]: Finished difference Result 1123 states and 1601 transitions. [2024-11-20 00:07:03,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:07:03,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-11-20 00:07:03,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:03,662 INFO L225 Difference]: With dead ends: 1123 [2024-11-20 00:07:03,662 INFO L226 Difference]: Without dead ends: 886 [2024-11-20 00:07:03,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:03,665 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 372 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:03,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1326 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:07:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-20 00:07:03,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 848. [2024-11-20 00:07:03,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 764 states have (on average 1.4371727748691099) internal successors, (1098), 772 states have internal predecessors, (1098), 56 states have call successors, (56), 24 states have call predecessors, (56), 26 states have return successors, (70), 52 states have call predecessors, (70), 54 states have call successors, (70) [2024-11-20 00:07:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1224 transitions. [2024-11-20 00:07:03,708 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1224 transitions. Word has length 62 [2024-11-20 00:07:03,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:03,709 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1224 transitions. [2024-11-20 00:07:03,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 00:07:03,709 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1224 transitions. [2024-11-20 00:07:03,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-20 00:07:03,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:03,711 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 00:07:03,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:07:03,711 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:03,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:03,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1256793801, now seen corresponding path program 1 times [2024-11-20 00:07:03,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:03,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737779347] [2024-11-20 00:07:03,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:03,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:03,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:03,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:03,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 00:07:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:03,780 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 00:07:03,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:03,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737779347] [2024-11-20 00:07:03,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737779347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:03,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:03,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:07:03,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114752412] [2024-11-20 00:07:03,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:03,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:07:03,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:03,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:07:03,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:07:03,782 INFO L87 Difference]: Start difference. First operand 848 states and 1224 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 00:07:04,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:04,321 INFO L93 Difference]: Finished difference Result 1399 states and 1946 transitions. [2024-11-20 00:07:04,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:07:04,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 67 [2024-11-20 00:07:04,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:04,328 INFO L225 Difference]: With dead ends: 1399 [2024-11-20 00:07:04,328 INFO L226 Difference]: Without dead ends: 1021 [2024-11-20 00:07:04,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:04,332 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1013 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:04,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 909 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:07:04,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-11-20 00:07:04,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 966. [2024-11-20 00:07:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 869 states have (on average 1.4085155350978136) internal successors, (1224), 878 states have internal predecessors, (1224), 63 states have call successors, (63), 29 states have call predecessors, (63), 32 states have return successors, (81), 59 states have call predecessors, (81), 61 states have call successors, (81) [2024-11-20 00:07:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1368 transitions. [2024-11-20 00:07:04,386 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1368 transitions. Word has length 67 [2024-11-20 00:07:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:04,387 INFO L471 AbstractCegarLoop]: Abstraction has 966 states and 1368 transitions. [2024-11-20 00:07:04,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 00:07:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1368 transitions. [2024-11-20 00:07:04,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-20 00:07:04,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:04,389 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:04,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 00:07:04,389 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:04,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1139590229, now seen corresponding path program 1 times [2024-11-20 00:07:04,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:04,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724483901] [2024-11-20 00:07:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:04,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 00:07:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:07:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 00:07:04,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:04,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724483901] [2024-11-20 00:07:04,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724483901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:07:04,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673710586] [2024-11-20 00:07:04,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:04,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:04,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:07:04,528 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) [2024-11-20 00:07:04,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 00:07:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:04,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 00:07:04,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:07:04,776 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:04,776 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:07:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-20 00:07:04,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673710586] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 00:07:04,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-20 00:07:04,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 4] total 8 [2024-11-20 00:07:04,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021501369] [2024-11-20 00:07:04,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:04,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:07:04,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:07:04,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:07:04,833 INFO L87 Difference]: Start difference. First operand 966 states and 1368 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 00:07:05,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:05,033 INFO L93 Difference]: Finished difference Result 1021 states and 1435 transitions. [2024-11-20 00:07:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:07:05,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 68 [2024-11-20 00:07:05,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:05,039 INFO L225 Difference]: With dead ends: 1021 [2024-11-20 00:07:05,040 INFO L226 Difference]: Without dead ends: 1018 [2024-11-20 00:07:05,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:07:05,041 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 1363 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:05,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 833 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:07:05,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-11-20 00:07:05,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 965. [2024-11-20 00:07:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 869 states have (on average 1.4062140391254316) internal successors, (1222), 877 states have internal predecessors, (1222), 62 states have call successors, (62), 29 states have call predecessors, (62), 32 states have return successors, (81), 59 states have call predecessors, (81), 61 states have call successors, (81) [2024-11-20 00:07:05,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1365 transitions. [2024-11-20 00:07:05,099 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1365 transitions. Word has length 68 [2024-11-20 00:07:05,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:05,100 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1365 transitions. [2024-11-20 00:07:05,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 00:07:05,100 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1365 transitions. [2024-11-20 00:07:05,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 00:07:05,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:05,102 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:05,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 00:07:05,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:05,303 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:05,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:05,304 INFO L85 PathProgramCache]: Analyzing trace with hash -969038708, now seen corresponding path program 1 times [2024-11-20 00:07:05,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:05,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851495270] [2024-11-20 00:07:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:05,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:05,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:05,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 00:07:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:05,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 00:07:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 00:07:05,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:05,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851495270] [2024-11-20 00:07:05,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851495270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:07:05,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253950010] [2024-11-20 00:07:05,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:05,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:05,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:07:05,449 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) [2024-11-20 00:07:05,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 00:07:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:05,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 00:07:05,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:07:05,872 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:05,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 00:07:05,946 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-20 00:07:05,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253950010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 00:07:05,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 00:07:05,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 11 [2024-11-20 00:07:05,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002022606] [2024-11-20 00:07:05,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 00:07:05,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 00:07:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:05,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 00:07:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:05,949 INFO L87 Difference]: Start difference. First operand 965 states and 1365 transitions. Second operand has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-20 00:07:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:07,766 INFO L93 Difference]: Finished difference Result 2309 states and 3141 transitions. [2024-11-20 00:07:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-20 00:07:07,767 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 69 [2024-11-20 00:07:07,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:07,776 INFO L225 Difference]: With dead ends: 2309 [2024-11-20 00:07:07,777 INFO L226 Difference]: Without dead ends: 1865 [2024-11-20 00:07:07,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=768, Unknown=0, NotChecked=0, Total=930 [2024-11-20 00:07:07,781 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 1195 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 2694 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 2735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:07,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 4016 Invalid, 2735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2694 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:07:07,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2024-11-20 00:07:07,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1313. [2024-11-20 00:07:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 1181 states have (on average 1.3640982218458932) internal successors, (1611), 1195 states have internal predecessors, (1611), 81 states have call successors, (81), 42 states have call predecessors, (81), 49 states have return successors, (112), 76 states have call predecessors, (112), 80 states have call successors, (112) [2024-11-20 00:07:07,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1804 transitions. [2024-11-20 00:07:07,891 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1804 transitions. Word has length 69 [2024-11-20 00:07:07,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:07,892 INFO L471 AbstractCegarLoop]: Abstraction has 1313 states and 1804 transitions. [2024-11-20 00:07:07,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.727272727272727) internal successors, (151), 10 states have internal predecessors, (151), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-20 00:07:07,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1804 transitions. [2024-11-20 00:07:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-20 00:07:07,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:07,894 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-20 00:07:07,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 00:07:08,098 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,SelfDestructingSolverStorable7 [2024-11-20 00:07:08,099 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:08,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:08,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1821580368, now seen corresponding path program 1 times [2024-11-20 00:07:08,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:08,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548291521] [2024-11-20 00:07:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:08,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 00:07:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 00:07:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 00:07:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-20 00:07:08,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548291521] [2024-11-20 00:07:08,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548291521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:07:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420701969] [2024-11-20 00:07:08,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:08,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:08,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:07:08,253 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:07:08,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 00:07:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 00:07:08,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:07:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-20 00:07:08,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:07:08,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420701969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:08,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:07:08,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-20 00:07:08,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279180197] [2024-11-20 00:07:08,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:08,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:07:08,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:08,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:07:08,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:08,411 INFO L87 Difference]: Start difference. First operand 1313 states and 1804 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 00:07:08,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:08,470 INFO L93 Difference]: Finished difference Result 1931 states and 2608 transitions. [2024-11-20 00:07:08,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:07:08,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-20 00:07:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:08,476 INFO L225 Difference]: With dead ends: 1931 [2024-11-20 00:07:08,476 INFO L226 Difference]: Without dead ends: 1209 [2024-11-20 00:07:08,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:08,479 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 703 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:08,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 846 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:07:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2024-11-20 00:07:08,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1197. [2024-11-20 00:07:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 1078 states have (on average 1.3673469387755102) internal successors, (1474), 1092 states have internal predecessors, (1474), 74 states have call successors, (74), 37 states have call predecessors, (74), 43 states have return successors, (101), 68 states have call predecessors, (101), 73 states have call successors, (101) [2024-11-20 00:07:08,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1649 transitions. [2024-11-20 00:07:08,530 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1649 transitions. Word has length 88 [2024-11-20 00:07:08,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:08,530 INFO L471 AbstractCegarLoop]: Abstraction has 1197 states and 1649 transitions. [2024-11-20 00:07:08,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-20 00:07:08,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1649 transitions. [2024-11-20 00:07:08,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-20 00:07:08,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:08,533 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:08,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 00:07:08,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:08,733 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:08,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:08,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1299200054, now seen corresponding path program 1 times [2024-11-20 00:07:08,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:08,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640815154] [2024-11-20 00:07:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:08,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 00:07:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 00:07:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 00:07:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-20 00:07:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 00:07:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 00:07:08,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:08,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640815154] [2024-11-20 00:07:08,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640815154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 00:07:08,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44650522] [2024-11-20 00:07:08,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:08,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:08,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:07:08,843 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 00:07:08,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 00:07:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:08,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 00:07:08,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 00:07:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-20 00:07:09,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 00:07:09,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44650522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:09,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 00:07:09,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-20 00:07:09,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48637484] [2024-11-20 00:07:09,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:09,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:07:09,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:09,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:07:09,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:09,007 INFO L87 Difference]: Start difference. First operand 1197 states and 1649 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-20 00:07:09,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:09,057 INFO L93 Difference]: Finished difference Result 1509 states and 2037 transitions. [2024-11-20 00:07:09,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:07:09,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 103 [2024-11-20 00:07:09,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:09,060 INFO L225 Difference]: With dead ends: 1509 [2024-11-20 00:07:09,060 INFO L226 Difference]: Without dead ends: 417 [2024-11-20 00:07:09,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:09,062 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 61 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:09,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1503 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:07:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-20 00:07:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-20 00:07:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 383 states have (on average 1.558746736292428) internal successors, (597), 384 states have internal predecessors, (597), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 00:07:09,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 651 transitions. [2024-11-20 00:07:09,079 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 651 transitions. Word has length 103 [2024-11-20 00:07:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:09,080 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 651 transitions. [2024-11-20 00:07:09,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-20 00:07:09,080 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 651 transitions. [2024-11-20 00:07:09,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:09,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:09,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:09,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 00:07:09,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 00:07:09,284 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:09,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:09,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1924914785, now seen corresponding path program 1 times [2024-11-20 00:07:09,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:09,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459406388] [2024-11-20 00:07:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:09,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:09,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:09,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:09,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:09,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:09,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:09,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459406388] [2024-11-20 00:07:09,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459406388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:09,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:09,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:07:09,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084628627] [2024-11-20 00:07:09,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:09,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:07:09,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:09,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:07:09,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:09,528 INFO L87 Difference]: Start difference. First operand 417 states and 651 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-11-20 00:07:11,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:11,556 INFO L93 Difference]: Finished difference Result 978 states and 1553 transitions. [2024-11-20 00:07:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:07:11,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:11,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:11,562 INFO L225 Difference]: With dead ends: 978 [2024-11-20 00:07:11,562 INFO L226 Difference]: Without dead ends: 570 [2024-11-20 00:07:11,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:07:11,564 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1121 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:11,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 826 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 00:07:11,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-20 00:07:11,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 417. [2024-11-20 00:07:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 383 states have (on average 1.556135770234987) internal successors, (596), 384 states have internal predecessors, (596), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 00:07:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 650 transitions. [2024-11-20 00:07:11,594 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 650 transitions. Word has length 189 [2024-11-20 00:07:11,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:11,595 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 650 transitions. [2024-11-20 00:07:11,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-11-20 00:07:11,596 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 650 transitions. [2024-11-20 00:07:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:11,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:11,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:11,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:07:11,598 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:11,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:11,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1554005281, now seen corresponding path program 1 times [2024-11-20 00:07:11,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:11,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614663145] [2024-11-20 00:07:11,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:11,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:11,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:11,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:11,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:11,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:11,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:11,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:11,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614663145] [2024-11-20 00:07:11,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614663145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:11,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:11,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:07:11,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58074691] [2024-11-20 00:07:11,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:11,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:07:11,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:11,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:07:11,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:07:11,832 INFO L87 Difference]: Start difference. First operand 417 states and 650 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-11-20 00:07:13,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:13,740 INFO L93 Difference]: Finished difference Result 970 states and 1536 transitions. [2024-11-20 00:07:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:07:13,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:13,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:13,743 INFO L225 Difference]: With dead ends: 970 [2024-11-20 00:07:13,743 INFO L226 Difference]: Without dead ends: 570 [2024-11-20 00:07:13,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:07:13,746 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 1112 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:13,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 824 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 00:07:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-20 00:07:13,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 417. [2024-11-20 00:07:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 383 states have (on average 1.5535248041775458) internal successors, (595), 384 states have internal predecessors, (595), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 00:07:13,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 649 transitions. [2024-11-20 00:07:13,778 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 649 transitions. Word has length 189 [2024-11-20 00:07:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:13,778 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 649 transitions. [2024-11-20 00:07:13,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-11-20 00:07:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 649 transitions. [2024-11-20 00:07:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:13,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:13,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:13,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 00:07:13,781 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:13,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:13,781 INFO L85 PathProgramCache]: Analyzing trace with hash 2092369245, now seen corresponding path program 1 times [2024-11-20 00:07:13,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:13,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029439659] [2024-11-20 00:07:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:13,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:13,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:13,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:14,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:14,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029439659] [2024-11-20 00:07:14,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029439659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:14,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:14,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:07:14,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134529037] [2024-11-20 00:07:14,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:14,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:07:14,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:14,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:07:14,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:07:14,101 INFO L87 Difference]: Start difference. First operand 417 states and 649 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-11-20 00:07:17,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:17,057 INFO L93 Difference]: Finished difference Result 1533 states and 2444 transitions. [2024-11-20 00:07:17,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 00:07:17,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:17,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:17,062 INFO L225 Difference]: With dead ends: 1533 [2024-11-20 00:07:17,063 INFO L226 Difference]: Without dead ends: 1138 [2024-11-20 00:07:17,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:17,065 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 1689 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 2598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:17,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 1577 Invalid, 2598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-20 00:07:17,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-20 00:07:17,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 833. [2024-11-20 00:07:17,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 770 states have (on average 1.5662337662337662) internal successors, (1206), 772 states have internal predecessors, (1206), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-20 00:07:17,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1307 transitions. [2024-11-20 00:07:17,118 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1307 transitions. Word has length 189 [2024-11-20 00:07:17,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:17,119 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1307 transitions. [2024-11-20 00:07:17,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-11-20 00:07:17,119 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1307 transitions. [2024-11-20 00:07:17,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:17,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:17,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:17,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:07:17,121 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:17,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:17,122 INFO L85 PathProgramCache]: Analyzing trace with hash -183969567, now seen corresponding path program 1 times [2024-11-20 00:07:17,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:17,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465527417] [2024-11-20 00:07:17,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:17,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:17,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:17,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465527417] [2024-11-20 00:07:17,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465527417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:17,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:17,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:17,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513949692] [2024-11-20 00:07:17,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:17,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:17,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:17,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:17,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:17,469 INFO L87 Difference]: Start difference. First operand 833 states and 1307 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:21,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:21,413 INFO L93 Difference]: Finished difference Result 2539 states and 4055 transitions. [2024-11-20 00:07:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:21,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:21,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:21,422 INFO L225 Difference]: With dead ends: 2539 [2024-11-20 00:07:21,422 INFO L226 Difference]: Without dead ends: 1728 [2024-11-20 00:07:21,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:21,426 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 1738 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 3838 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 3901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:21,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 2742 Invalid, 3901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3838 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-20 00:07:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-11-20 00:07:21,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1220. [2024-11-20 00:07:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1128 states have (on average 1.5593971631205674) internal successors, (1759), 1131 states have internal predecessors, (1759), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-20 00:07:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1906 transitions. [2024-11-20 00:07:21,524 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1906 transitions. Word has length 189 [2024-11-20 00:07:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:21,525 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1906 transitions. [2024-11-20 00:07:21,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1906 transitions. [2024-11-20 00:07:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:21,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:21,528 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:21,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:07:21,528 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:21,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1908577889, now seen corresponding path program 1 times [2024-11-20 00:07:21,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:21,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728867906] [2024-11-20 00:07:21,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:21,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:21,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:21,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:21,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:21,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:21,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:21,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728867906] [2024-11-20 00:07:21,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728867906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:21,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:21,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:21,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572907928] [2024-11-20 00:07:21,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:21,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:21,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:21,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:21,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:21,842 INFO L87 Difference]: Start difference. First operand 1220 states and 1906 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:23,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:23,582 INFO L93 Difference]: Finished difference Result 2946 states and 4700 transitions. [2024-11-20 00:07:23,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:23,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:23,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:23,591 INFO L225 Difference]: With dead ends: 2946 [2024-11-20 00:07:23,591 INFO L226 Difference]: Without dead ends: 1748 [2024-11-20 00:07:23,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:23,594 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1411 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:23,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1163 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 00:07:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2024-11-20 00:07:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1220. [2024-11-20 00:07:23,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1128 states have (on average 1.5567375886524824) internal successors, (1756), 1131 states have internal predecessors, (1756), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-20 00:07:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1903 transitions. [2024-11-20 00:07:23,688 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1903 transitions. Word has length 189 [2024-11-20 00:07:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:23,689 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1903 transitions. [2024-11-20 00:07:23,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1903 transitions. [2024-11-20 00:07:23,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:23,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:23,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:23,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:07:23,692 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:23,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1338306083, now seen corresponding path program 1 times [2024-11-20 00:07:23,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384063538] [2024-11-20 00:07:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:23,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:23,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:23,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:23,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:23,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:23,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:23,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384063538] [2024-11-20 00:07:23,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384063538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:23,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:23,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:23,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434423838] [2024-11-20 00:07:23,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:23,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:23,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:23,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:23,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:23,993 INFO L87 Difference]: Start difference. First operand 1220 states and 1903 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:25,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:25,819 INFO L93 Difference]: Finished difference Result 2942 states and 4683 transitions. [2024-11-20 00:07:25,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:25,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:25,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:25,827 INFO L225 Difference]: With dead ends: 2942 [2024-11-20 00:07:25,827 INFO L226 Difference]: Without dead ends: 1744 [2024-11-20 00:07:25,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:07:25,830 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1409 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:25,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 1163 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:07:25,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-20 00:07:25,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1220. [2024-11-20 00:07:25,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1128 states have (on average 1.554078014184397) internal successors, (1753), 1131 states have internal predecessors, (1753), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-20 00:07:25,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1900 transitions. [2024-11-20 00:07:25,916 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1900 transitions. Word has length 189 [2024-11-20 00:07:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:25,917 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1900 transitions. [2024-11-20 00:07:25,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:25,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1900 transitions. [2024-11-20 00:07:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:25,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:25,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:25,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:07:25,920 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:25,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash 65563103, now seen corresponding path program 1 times [2024-11-20 00:07:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:25,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488772319] [2024-11-20 00:07:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:26,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:26,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:26,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:26,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:26,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:26,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:26,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488772319] [2024-11-20 00:07:26,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488772319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:26,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:26,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:26,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099639357] [2024-11-20 00:07:26,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:26,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:26,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:26,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:26,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:26,230 INFO L87 Difference]: Start difference. First operand 1220 states and 1900 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:29,989 INFO L93 Difference]: Finished difference Result 4014 states and 6366 transitions. [2024-11-20 00:07:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:29,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:29,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:30,003 INFO L225 Difference]: With dead ends: 4014 [2024-11-20 00:07:30,004 INFO L226 Difference]: Without dead ends: 2816 [2024-11-20 00:07:30,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:30,010 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 1716 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 3774 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:30,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 2740 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3774 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-20 00:07:30,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2024-11-20 00:07:30,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 2004. [2024-11-20 00:07:30,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1854 states have (on average 1.5480043149946063) internal successors, (2870), 1859 states have internal predecessors, (2870), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-11-20 00:07:30,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 3113 transitions. [2024-11-20 00:07:30,190 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 3113 transitions. Word has length 189 [2024-11-20 00:07:30,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:30,191 INFO L471 AbstractCegarLoop]: Abstraction has 2004 states and 3113 transitions. [2024-11-20 00:07:30,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:30,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 3113 transitions. [2024-11-20 00:07:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:30,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:30,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:30,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:07:30,194 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:30,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:30,195 INFO L85 PathProgramCache]: Analyzing trace with hash -720434787, now seen corresponding path program 1 times [2024-11-20 00:07:30,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:30,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315146570] [2024-11-20 00:07:30,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:30,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:30,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:30,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315146570] [2024-11-20 00:07:30,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315146570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:30,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:30,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408370281] [2024-11-20 00:07:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:30,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:30,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:30,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:30,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:30,484 INFO L87 Difference]: Start difference. First operand 2004 states and 3113 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:32,354 INFO L93 Difference]: Finished difference Result 4786 states and 7568 transitions. [2024-11-20 00:07:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:32,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:32,368 INFO L225 Difference]: With dead ends: 4786 [2024-11-20 00:07:32,368 INFO L226 Difference]: Without dead ends: 2804 [2024-11-20 00:07:32,374 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 [2024-11-20 00:07:32,375 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1230 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:32,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 1384 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:07:32,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2024-11-20 00:07:32,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2004. [2024-11-20 00:07:32,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1854 states have (on average 1.5453074433656957) internal successors, (2865), 1859 states have internal predecessors, (2865), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-11-20 00:07:32,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 3108 transitions. [2024-11-20 00:07:32,558 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 3108 transitions. Word has length 189 [2024-11-20 00:07:32,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:32,558 INFO L471 AbstractCegarLoop]: Abstraction has 2004 states and 3108 transitions. [2024-11-20 00:07:32,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:32,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 3108 transitions. [2024-11-20 00:07:32,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:32,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:32,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:32,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:07:32,561 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:32,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:32,562 INFO L85 PathProgramCache]: Analyzing trace with hash -53052897, now seen corresponding path program 1 times [2024-11-20 00:07:32,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:32,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979563336] [2024-11-20 00:07:32,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:32,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:32,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:32,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:32,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:32,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:32,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:32,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:32,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979563336] [2024-11-20 00:07:32,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979563336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:32,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:32,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:32,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067334576] [2024-11-20 00:07:32,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:32,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:32,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:32,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:32,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:32,840 INFO L87 Difference]: Start difference. First operand 2004 states and 3108 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:36,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:36,627 INFO L93 Difference]: Finished difference Result 6870 states and 10819 transitions. [2024-11-20 00:07:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:36,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:36,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:36,659 INFO L225 Difference]: With dead ends: 6870 [2024-11-20 00:07:36,659 INFO L226 Difference]: Without dead ends: 4888 [2024-11-20 00:07:36,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:36,667 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 1708 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 3736 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 3801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:36,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 2740 Invalid, 3801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3736 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-20 00:07:36,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4888 states. [2024-11-20 00:07:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4888 to 3574. [2024-11-20 00:07:37,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 3308 states have (on average 1.5396009673518742) internal successors, (5093), 3317 states have internal predecessors, (5093), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-11-20 00:07:37,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5534 transitions. [2024-11-20 00:07:37,056 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5534 transitions. Word has length 189 [2024-11-20 00:07:37,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:37,056 INFO L471 AbstractCegarLoop]: Abstraction has 3574 states and 5534 transitions. [2024-11-20 00:07:37,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:37,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5534 transitions. [2024-11-20 00:07:37,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:37,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:37,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:37,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:07:37,068 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:37,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2046685533, now seen corresponding path program 1 times [2024-11-20 00:07:37,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:37,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635067253] [2024-11-20 00:07:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:37,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:37,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:37,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:37,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:37,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:37,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:37,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:37,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635067253] [2024-11-20 00:07:37,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635067253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:37,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:37,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:37,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018492307] [2024-11-20 00:07:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:37,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:37,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:37,346 INFO L87 Difference]: Start difference. First operand 3574 states and 5534 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:39,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:39,287 INFO L93 Difference]: Finished difference Result 8466 states and 13323 transitions. [2024-11-20 00:07:39,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:39,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:39,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:39,301 INFO L225 Difference]: With dead ends: 8466 [2024-11-20 00:07:39,301 INFO L226 Difference]: Without dead ends: 4914 [2024-11-20 00:07:39,308 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 [2024-11-20 00:07:39,308 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1229 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:39,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 1384 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:07:39,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4914 states. [2024-11-20 00:07:39,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4914 to 3574. [2024-11-20 00:07:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 3308 states have (on average 1.5368802902055623) internal successors, (5084), 3317 states have internal predecessors, (5084), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-11-20 00:07:39,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 5525 transitions. [2024-11-20 00:07:39,576 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 5525 transitions. Word has length 189 [2024-11-20 00:07:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:39,577 INFO L471 AbstractCegarLoop]: Abstraction has 3574 states and 5525 transitions. [2024-11-20 00:07:39,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:39,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 5525 transitions. [2024-11-20 00:07:39,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:39,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:39,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:39,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 00:07:39,581 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:39,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:39,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1903453601, now seen corresponding path program 1 times [2024-11-20 00:07:39,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:39,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132091584] [2024-11-20 00:07:39,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:39,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:39,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:39,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:39,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:39,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:39,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:39,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:39,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132091584] [2024-11-20 00:07:39,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132091584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:39,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:39,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:39,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360677452] [2024-11-20 00:07:39,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:39,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:39,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:39,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:39,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:39,873 INFO L87 Difference]: Start difference. First operand 3574 states and 5525 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:44,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:44,017 INFO L93 Difference]: Finished difference Result 12580 states and 19719 transitions. [2024-11-20 00:07:44,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:44,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:44,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:44,052 INFO L225 Difference]: With dead ends: 12580 [2024-11-20 00:07:44,052 INFO L226 Difference]: Without dead ends: 9028 [2024-11-20 00:07:44,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:44,065 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 1706 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 3693 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 3758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:44,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 2740 Invalid, 3758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3693 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-20 00:07:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9028 states. [2024-11-20 00:07:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9028 to 6728. [2024-11-20 00:07:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6728 states, 6230 states have (on average 1.5325842696629213) internal successors, (9548), 6247 states have internal predecessors, (9548), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-11-20 00:07:44,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6728 states to 6728 states and 10403 transitions. [2024-11-20 00:07:44,573 INFO L78 Accepts]: Start accepts. Automaton has 6728 states and 10403 transitions. Word has length 189 [2024-11-20 00:07:44,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:44,573 INFO L471 AbstractCegarLoop]: Abstraction has 6728 states and 10403 transitions. [2024-11-20 00:07:44,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand 6728 states and 10403 transitions. [2024-11-20 00:07:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:44,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:44,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:44,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 00:07:44,580 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:44,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:44,580 INFO L85 PathProgramCache]: Analyzing trace with hash -922498787, now seen corresponding path program 1 times [2024-11-20 00:07:44,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:44,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604149153] [2024-11-20 00:07:44,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:44,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:44,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:44,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:44,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:44,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:44,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:44,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:44,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604149153] [2024-11-20 00:07:44,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604149153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:44,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:44,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:44,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284880868] [2024-11-20 00:07:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:44,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:44,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:44,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:44,837 INFO L87 Difference]: Start difference. First operand 6728 states and 10403 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:46,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:46,987 INFO L93 Difference]: Finished difference Result 15808 states and 24814 transitions. [2024-11-20 00:07:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:07:46,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:47,051 INFO L225 Difference]: With dead ends: 15808 [2024-11-20 00:07:47,052 INFO L226 Difference]: Without dead ends: 9102 [2024-11-20 00:07:47,065 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 [2024-11-20 00:07:47,067 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1232 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:47,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 1384 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:07:47,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2024-11-20 00:07:47,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 6728. [2024-11-20 00:07:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6728 states, 6230 states have (on average 1.5298555377207064) internal successors, (9531), 6247 states have internal predecessors, (9531), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-11-20 00:07:47,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6728 states to 6728 states and 10386 transitions. [2024-11-20 00:07:47,509 INFO L78 Accepts]: Start accepts. Automaton has 6728 states and 10386 transitions. Word has length 189 [2024-11-20 00:07:47,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:47,509 INFO L471 AbstractCegarLoop]: Abstraction has 6728 states and 10386 transitions. [2024-11-20 00:07:47,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand 6728 states and 10386 transitions. [2024-11-20 00:07:47,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:47,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:47,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:47,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 00:07:47,515 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:47,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:47,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1533767845, now seen corresponding path program 1 times [2024-11-20 00:07:47,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:47,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277084785] [2024-11-20 00:07:47,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:47,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:47,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:47,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:47,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:47,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:47,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:47,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:47,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277084785] [2024-11-20 00:07:47,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277084785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:47,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:47,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:47,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066757321] [2024-11-20 00:07:47,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:47,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:47,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:47,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:47,827 INFO L87 Difference]: Start difference. First operand 6728 states and 10386 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:52,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:52,361 INFO L93 Difference]: Finished difference Result 23984 states and 37503 transitions. [2024-11-20 00:07:52,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:52,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:52,420 INFO L225 Difference]: With dead ends: 23984 [2024-11-20 00:07:52,420 INFO L226 Difference]: Without dead ends: 17278 [2024-11-20 00:07:52,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:52,439 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 1694 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 3641 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 3706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:52,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 2740 Invalid, 3706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3641 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-20 00:07:52,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17278 states. [2024-11-20 00:07:53,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17278 to 13083. [2024-11-20 00:07:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13083 states, 12121 states have (on average 1.5273492286115007) internal successors, (18513), 12154 states have internal predecessors, (18513), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-20 00:07:53,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13083 states to 13083 states and 20250 transitions. [2024-11-20 00:07:53,529 INFO L78 Accepts]: Start accepts. Automaton has 13083 states and 20250 transitions. Word has length 189 [2024-11-20 00:07:53,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:07:53,529 INFO L471 AbstractCegarLoop]: Abstraction has 13083 states and 20250 transitions. [2024-11-20 00:07:53,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:53,530 INFO L276 IsEmpty]: Start isEmpty. Operand 13083 states and 20250 transitions. [2024-11-20 00:07:53,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:07:53,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:07:53,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:07:53,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 00:07:53,539 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:07:53,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:07:53,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1356007773, now seen corresponding path program 1 times [2024-11-20 00:07:53,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:07:53,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872558121] [2024-11-20 00:07:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:07:53,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:07:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:53,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:07:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:53,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:07:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:53,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:07:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:53,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:07:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:53,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:07:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:07:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:07:53,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:07:53,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872558121] [2024-11-20 00:07:53,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872558121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:07:53,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:07:53,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:07:53,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282301803] [2024-11-20 00:07:53,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:07:53,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:07:53,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:07:53,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:07:53,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:07:53,826 INFO L87 Difference]: Start difference. First operand 13083 states and 20250 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:07:59,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:07:59,337 INFO L93 Difference]: Finished difference Result 46865 states and 73481 transitions. [2024-11-20 00:07:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 00:07:59,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:07:59,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:07:59,474 INFO L225 Difference]: With dead ends: 46865 [2024-11-20 00:07:59,474 INFO L226 Difference]: Without dead ends: 33804 [2024-11-20 00:07:59,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:07:59,654 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 1693 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 3628 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 3693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:07:59,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 2740 Invalid, 3693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3628 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-20 00:07:59,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33804 states. [2024-11-20 00:08:01,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33804 to 25820. [2024-11-20 00:08:01,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25820 states, 23930 states have (on average 1.5259089009611366) internal successors, (36515), 23995 states have internal predecessors, (36515), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2024-11-20 00:08:01,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25820 states to 25820 states and 40178 transitions. [2024-11-20 00:08:01,601 INFO L78 Accepts]: Start accepts. Automaton has 25820 states and 40178 transitions. Word has length 189 [2024-11-20 00:08:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:01,602 INFO L471 AbstractCegarLoop]: Abstraction has 25820 states and 40178 transitions. [2024-11-20 00:08:01,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:08:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 25820 states and 40178 transitions. [2024-11-20 00:08:01,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:08:01,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:01,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:01,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 00:08:01,621 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:01,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:01,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1044625637, now seen corresponding path program 1 times [2024-11-20 00:08:01,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:01,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200087716] [2024-11-20 00:08:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:01,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:01,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:01,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:08:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:01,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:08:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:08:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:01,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:08:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:01,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:01,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:01,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200087716] [2024-11-20 00:08:01,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200087716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:01,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:01,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:08:01,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282698348] [2024-11-20 00:08:01,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:01,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:08:01,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:01,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:08:01,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:08:01,962 INFO L87 Difference]: Start difference. First operand 25820 states and 40178 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:08:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:08:06,176 INFO L93 Difference]: Finished difference Result 60002 states and 94855 transitions. [2024-11-20 00:08:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:08:06,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2024-11-20 00:08:06,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:08:06,303 INFO L225 Difference]: With dead ends: 60002 [2024-11-20 00:08:06,303 INFO L226 Difference]: Without dead ends: 34204 [2024-11-20 00:08:06,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:08:06,356 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1230 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:08:06,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 1382 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 00:08:06,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34204 states. [2024-11-20 00:08:08,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34204 to 25820. [2024-11-20 00:08:08,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25820 states, 23930 states have (on average 1.5231926452152111) internal successors, (36450), 23995 states have internal predecessors, (36450), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2024-11-20 00:08:08,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25820 states to 25820 states and 40113 transitions. [2024-11-20 00:08:08,838 INFO L78 Accepts]: Start accepts. Automaton has 25820 states and 40113 transitions. Word has length 189 [2024-11-20 00:08:08,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:08:08,838 INFO L471 AbstractCegarLoop]: Abstraction has 25820 states and 40113 transitions. [2024-11-20 00:08:08,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-11-20 00:08:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 25820 states and 40113 transitions. [2024-11-20 00:08:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-20 00:08:08,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:08:08,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:08:08,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 00:08:08,854 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:08:08,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:08:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash 401955229, now seen corresponding path program 1 times [2024-11-20 00:08:08,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:08:08,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054775591] [2024-11-20 00:08:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:08:08,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:08:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:08,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 00:08:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:09,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 00:08:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:09,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 00:08:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:09,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:08:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:09,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 00:08:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:08:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:08:09,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:08:09,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054775591] [2024-11-20 00:08:09,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054775591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:08:09,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:08:09,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:08:09,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803998753] [2024-11-20 00:08:09,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:08:09,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:08:09,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:08:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:08:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:08:09,153 INFO L87 Difference]: Start difference. First operand 25820 states and 40113 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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)