./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.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 a46e7920fd800fb5978581c250ecd4216776e6eac1b8dfb89d2f8a9c2732a33c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:57:31,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:57:31,300 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:57:31,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:57:31,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:57:31,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:57:31,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:57:31,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:57:31,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:57:31,339 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:57:31,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:57:31,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:57:31,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:57:31,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:57:31,341 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:57:31,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:57:31,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:57:31,343 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:57:31,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:57:31,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:57:31,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:57:31,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:57:31,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:57:31,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:57:31,371 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:57:31,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:57:31,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:57:31,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:57:31,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:57:31,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:57:31,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:57:31,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:57:31,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:57:31,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:57:31,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:57:31,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:57:31,372 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:57:31,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:57:31,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:57:31,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:57:31,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:57:31,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:57:31,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a46e7920fd800fb5978581c250ecd4216776e6eac1b8dfb89d2f8a9c2732a33c [2024-11-11 22:57:31,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:57:31,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:57:31,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:57:31,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:57:31,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:57:31,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-11 22:57:32,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:57:33,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:57:33,203 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-11 22:57:33,222 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30a316604/49be86e4a6f3406782f5db0c935bf1d2/FLAG709e91da8 [2024-11-11 22:57:33,537 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30a316604/49be86e4a6f3406782f5db0c935bf1d2 [2024-11-11 22:57:33,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:57:33,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:57:33,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:57:33,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:57:33,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:57:33,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:57:33" (1/1) ... [2024-11-11 22:57:33,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2797fced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:33, skipping insertion in model container [2024-11-11 22:57:33,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:57:33" (1/1) ... [2024-11-11 22:57:33,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:57:33,777 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c[914,927] [2024-11-11 22:57:33,837 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c[7115,7128] [2024-11-11 22:57:33,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:57:34,006 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:57:34,019 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c[914,927] [2024-11-11 22:57:34,039 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.12.cil-2.c[7115,7128] [2024-11-11 22:57:34,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:57:34,115 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:57:34,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34 WrapperNode [2024-11-11 22:57:34,116 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:57:34,117 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:57:34,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:57:34,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:57:34,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,185 INFO L138 Inliner]: procedures = 77, calls = 93, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1068 [2024-11-11 22:57:34,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:57:34,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:57:34,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:57:34,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:57:34,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,203 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,229 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]. [2024-11-11 22:57:34,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:57:34,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:57:34,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:57:34,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:57:34,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (1/1) ... [2024-11-11 22:57:34,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:57:34,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:57:34,299 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) [2024-11-11 22:57:34,304 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 [2024-11-11 22:57:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:57:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:57:34,348 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:57:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 22:57:34,349 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 22:57:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:57:34,350 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:57:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:57:34,350 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:57:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 22:57:34,350 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 22:57:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:57:34,350 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:57:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:57:34,351 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:57:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 22:57:34,351 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 22:57:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 22:57:34,352 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 22:57:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 22:57:34,352 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 22:57:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:57:34,352 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:57:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:57:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:57:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:57:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 22:57:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 22:57:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:57:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:57:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:57:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:57:34,488 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:57:34,489 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:57:35,360 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-11 22:57:35,361 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:57:35,379 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:57:35,379 INFO L316 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-11 22:57:35,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:57:35 BoogieIcfgContainer [2024-11-11 22:57:35,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:57:35,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:57:35,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:57:35,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:57:35,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:57:33" (1/3) ... [2024-11-11 22:57:35,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91497fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:57:35, skipping insertion in model container [2024-11-11 22:57:35,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:57:34" (2/3) ... [2024-11-11 22:57:35,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91497fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:57:35, skipping insertion in model container [2024-11-11 22:57:35,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:57:35" (3/3) ... [2024-11-11 22:57:35,385 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.12.cil-2.c [2024-11-11 22:57:35,397 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:57:35,397 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:57:35,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:57:35,454 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;@2afa9b3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:57:35,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:57:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 496 states, 439 states have (on average 1.6218678815489749) internal successors, (712), 445 states have internal predecessors, (712), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-11 22:57:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:57:35,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:35,467 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:35,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:35,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:35,473 INFO L85 PathProgramCache]: Analyzing trace with hash 979226068, now seen corresponding path program 1 times [2024-11-11 22:57:35,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:35,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424292056] [2024-11-11 22:57:35,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:35,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:35,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:35,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:35,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:36,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:36,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:36,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:36,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:36,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:36,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424292056] [2024-11-11 22:57:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424292056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:36,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:36,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:57:36,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144950747] [2024-11-11 22:57:36,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:36,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:57:36,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:36,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:57:36,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:57:36,056 INFO L87 Difference]: Start difference. First operand has 496 states, 439 states have (on average 1.6218678815489749) internal successors, (712), 445 states have internal predecessors, (712), 40 states have call successors, (40), 14 states have call predecessors, (40), 14 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:57:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:37,355 INFO L93 Difference]: Finished difference Result 1099 states and 1742 transitions. [2024-11-11 22:57:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:57:37,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:57:37,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:37,375 INFO L225 Difference]: With dead ends: 1099 [2024-11-11 22:57:37,375 INFO L226 Difference]: Without dead ends: 621 [2024-11-11 22:57:37,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:57:37,387 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 1222 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:37,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 2202 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:57:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-11 22:57:37,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 582. [2024-11-11 22:57:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 507 states have (on average 1.5128205128205128) internal successors, (767), 513 states have internal predecessors, (767), 51 states have call successors, (51), 21 states have call predecessors, (51), 22 states have return successors, (54), 50 states have call predecessors, (54), 49 states have call successors, (54) [2024-11-11 22:57:37,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 872 transitions. [2024-11-11 22:57:37,486 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 872 transitions. Word has length 65 [2024-11-11 22:57:37,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:37,487 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 872 transitions. [2024-11-11 22:57:37,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:57:37,487 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 872 transitions. [2024-11-11 22:57:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:57:37,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:37,491 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:37,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:57:37,492 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:37,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:37,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1383012019, now seen corresponding path program 1 times [2024-11-11 22:57:37,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:37,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552113378] [2024-11-11 22:57:37,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:37,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:37,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:37,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:37,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:37,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:37,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:37,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:37,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:37,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:37,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:37,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552113378] [2024-11-11 22:57:37,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552113378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:37,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:37,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:57:37,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127074952] [2024-11-11 22:57:37,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:37,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:57:37,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:37,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:57:37,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:57:37,674 INFO L87 Difference]: Start difference. First operand 582 states and 872 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:57:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:38,767 INFO L93 Difference]: Finished difference Result 929 states and 1349 transitions. [2024-11-11 22:57:38,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:57:38,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:57:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:38,771 INFO L225 Difference]: With dead ends: 929 [2024-11-11 22:57:38,772 INFO L226 Difference]: Without dead ends: 752 [2024-11-11 22:57:38,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:57:38,773 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 1489 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:38,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 2427 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:57:38,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2024-11-11 22:57:38,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 678. [2024-11-11 22:57:38,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 583 states have (on average 1.4939965694682675) internal successors, (871), 591 states have internal predecessors, (871), 62 states have call successors, (62), 28 states have call predecessors, (62), 31 states have return successors, (73), 62 states have call predecessors, (73), 60 states have call successors, (73) [2024-11-11 22:57:38,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 1006 transitions. [2024-11-11 22:57:38,811 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 1006 transitions. Word has length 65 [2024-11-11 22:57:38,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:38,811 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 1006 transitions. [2024-11-11 22:57:38,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:57:38,811 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 1006 transitions. [2024-11-11 22:57:38,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:57:38,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:38,813 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:38,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:57:38,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:38,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:38,814 INFO L85 PathProgramCache]: Analyzing trace with hash -645574091, now seen corresponding path program 1 times [2024-11-11 22:57:38,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:38,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691381837] [2024-11-11 22:57:38,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:38,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:38,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:38,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:38,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:38,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:38,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:38,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:38,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:38,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:38,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691381837] [2024-11-11 22:57:38,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691381837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:38,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:38,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:57:38,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499876873] [2024-11-11 22:57:38,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:38,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:57:38,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:38,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:57:38,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:57:38,945 INFO L87 Difference]: Start difference. First operand 678 states and 1006 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:57:39,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:39,902 INFO L93 Difference]: Finished difference Result 977 states and 1417 transitions. [2024-11-11 22:57:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:57:39,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-11 22:57:39,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:39,908 INFO L225 Difference]: With dead ends: 977 [2024-11-11 22:57:39,908 INFO L226 Difference]: Without dead ends: 710 [2024-11-11 22:57:39,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:57:39,909 INFO L435 NwaCegarLoop]: 420 mSDtfsCounter, 966 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:39,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 2611 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:57:39,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-11 22:57:39,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 683. [2024-11-11 22:57:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 587 states have (on average 1.4872231686541737) internal successors, (873), 595 states have internal predecessors, (873), 62 states have call successors, (62), 28 states have call predecessors, (62), 32 states have return successors, (74), 63 states have call predecessors, (74), 60 states have call successors, (74) [2024-11-11 22:57:39,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1009 transitions. [2024-11-11 22:57:39,937 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1009 transitions. Word has length 65 [2024-11-11 22:57:39,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:39,937 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 1009 transitions. [2024-11-11 22:57:39,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:57:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1009 transitions. [2024-11-11 22:57:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:57:39,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:39,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:39,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:57:39,939 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:39,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1674933389, now seen corresponding path program 1 times [2024-11-11 22:57:39,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:39,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651608628] [2024-11-11 22:57:39,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:39,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:39,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:39,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:40,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:40,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:40,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:40,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:40,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:40,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:40,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651608628] [2024-11-11 22:57:40,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651608628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:40,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:40,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:57:40,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117441024] [2024-11-11 22:57:40,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:40,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:57:40,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:40,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:57:40,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:57:40,168 INFO L87 Difference]: Start difference. First operand 683 states and 1009 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:57:42,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:42,676 INFO L93 Difference]: Finished difference Result 2345 states and 3281 transitions. [2024-11-11 22:57:42,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 22:57:42,676 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-11 22:57:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:42,688 INFO L225 Difference]: With dead ends: 2345 [2024-11-11 22:57:42,689 INFO L226 Difference]: Without dead ends: 2073 [2024-11-11 22:57:42,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 22:57:42,697 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 3035 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3049 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 2502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:42,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3049 Valid, 2266 Invalid, 2502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 22:57:42,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2024-11-11 22:57:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1823. [2024-11-11 22:57:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1823 states, 1487 states have (on average 1.3813046402151983) internal successors, (2054), 1515 states have internal predecessors, (2054), 179 states have call successors, (179), 130 states have call predecessors, (179), 155 states have return successors, (260), 181 states have call predecessors, (260), 177 states have call successors, (260) [2024-11-11 22:57:42,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2493 transitions. [2024-11-11 22:57:42,796 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2493 transitions. Word has length 65 [2024-11-11 22:57:42,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:42,798 INFO L471 AbstractCegarLoop]: Abstraction has 1823 states and 2493 transitions. [2024-11-11 22:57:42,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:57:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2493 transitions. [2024-11-11 22:57:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:57:42,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:42,800 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:42,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:57:42,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:42,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2081723959, now seen corresponding path program 1 times [2024-11-11 22:57:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:42,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942479768] [2024-11-11 22:57:42,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:42,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:42,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:42,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:42,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:42,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:42,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:42,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:42,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:42,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:42,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:42,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942479768] [2024-11-11 22:57:42,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942479768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:42,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:42,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:57:42,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550145680] [2024-11-11 22:57:42,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:42,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:57:42,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:42,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:57:42,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:57:42,944 INFO L87 Difference]: Start difference. First operand 1823 states and 2493 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:57:44,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:44,046 INFO L93 Difference]: Finished difference Result 3420 states and 4612 transitions. [2024-11-11 22:57:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:57:44,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-11 22:57:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:44,053 INFO L225 Difference]: With dead ends: 3420 [2024-11-11 22:57:44,053 INFO L226 Difference]: Without dead ends: 2008 [2024-11-11 22:57:44,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:57:44,059 INFO L435 NwaCegarLoop]: 419 mSDtfsCounter, 968 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:44,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 2610 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:57:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-11-11 22:57:44,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1868. [2024-11-11 22:57:44,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1523 states have (on average 1.366382140512147) internal successors, (2081), 1551 states have internal predecessors, (2081), 179 states have call successors, (179), 130 states have call predecessors, (179), 164 states have return successors, (272), 190 states have call predecessors, (272), 177 states have call successors, (272) [2024-11-11 22:57:44,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2532 transitions. [2024-11-11 22:57:44,138 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2532 transitions. Word has length 65 [2024-11-11 22:57:44,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:44,138 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 2532 transitions. [2024-11-11 22:57:44,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:57:44,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2532 transitions. [2024-11-11 22:57:44,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:57:44,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:44,140 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:44,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:57:44,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:44,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:44,140 INFO L85 PathProgramCache]: Analyzing trace with hash -695520565, now seen corresponding path program 1 times [2024-11-11 22:57:44,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:44,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793754391] [2024-11-11 22:57:44,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:44,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:44,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:44,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:44,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:44,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:44,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:44,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:44,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:44,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:44,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793754391] [2024-11-11 22:57:44,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793754391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:44,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:44,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:57:44,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550581125] [2024-11-11 22:57:44,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:44,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:57:44,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:44,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:57:44,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:57:44,289 INFO L87 Difference]: Start difference. First operand 1868 states and 2532 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:57:45,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:45,502 INFO L93 Difference]: Finished difference Result 3303 states and 4371 transitions. [2024-11-11 22:57:45,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:57:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:57:45,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:45,513 INFO L225 Difference]: With dead ends: 3303 [2024-11-11 22:57:45,513 INFO L226 Difference]: Without dead ends: 2066 [2024-11-11 22:57:45,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:57:45,518 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 1455 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:45,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 2151 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:57:45,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2024-11-11 22:57:45,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 1846. [2024-11-11 22:57:45,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1509 states have (on average 1.3631544068919814) internal successors, (2057), 1531 states have internal predecessors, (2057), 179 states have call successors, (179), 130 states have call predecessors, (179), 156 states have return successors, (256), 188 states have call predecessors, (256), 177 states have call successors, (256) [2024-11-11 22:57:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2492 transitions. [2024-11-11 22:57:45,681 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2492 transitions. Word has length 65 [2024-11-11 22:57:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:45,683 INFO L471 AbstractCegarLoop]: Abstraction has 1846 states and 2492 transitions. [2024-11-11 22:57:45,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:57:45,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2492 transitions. [2024-11-11 22:57:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:57:45,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:45,687 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:45,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:57:45,687 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:45,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:45,688 INFO L85 PathProgramCache]: Analyzing trace with hash -829534071, now seen corresponding path program 1 times [2024-11-11 22:57:45,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:45,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287395124] [2024-11-11 22:57:45,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:45,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:45,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:45,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:45,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:45,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:45,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:45,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:45,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:45,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:45,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:45,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287395124] [2024-11-11 22:57:45,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287395124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:45,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:45,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:45,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791746124] [2024-11-11 22:57:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:45,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:45,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:45,809 INFO L87 Difference]: Start difference. First operand 1846 states and 2492 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:57:46,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:46,610 INFO L93 Difference]: Finished difference Result 4921 states and 6471 transitions. [2024-11-11 22:57:46,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:57:46,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:57:46,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:46,621 INFO L225 Difference]: With dead ends: 4921 [2024-11-11 22:57:46,621 INFO L226 Difference]: Without dead ends: 3489 [2024-11-11 22:57:46,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:57:46,623 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 2137 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:46,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 1121 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:57:46,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2024-11-11 22:57:46,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 3217. [2024-11-11 22:57:46,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3217 states, 2575 states have (on average 1.3102912621359224) internal successors, (3374), 2618 states have internal predecessors, (3374), 331 states have call successors, (331), 253 states have call predecessors, (331), 309 states have return successors, (528), 352 states have call predecessors, (528), 329 states have call successors, (528) [2024-11-11 22:57:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3217 states to 3217 states and 4233 transitions. [2024-11-11 22:57:46,834 INFO L78 Accepts]: Start accepts. Automaton has 3217 states and 4233 transitions. Word has length 65 [2024-11-11 22:57:46,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:46,834 INFO L471 AbstractCegarLoop]: Abstraction has 3217 states and 4233 transitions. [2024-11-11 22:57:46,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:57:46,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3217 states and 4233 transitions. [2024-11-11 22:57:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:57:46,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:46,836 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:46,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:57:46,836 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:46,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:46,836 INFO L85 PathProgramCache]: Analyzing trace with hash 736767187, now seen corresponding path program 1 times [2024-11-11 22:57:46,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:46,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680264202] [2024-11-11 22:57:46,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:46,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:46,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:46,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:46,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:46,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:46,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:46,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:46,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:46,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:46,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680264202] [2024-11-11 22:57:46,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680264202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:46,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:46,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:57:46,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326060814] [2024-11-11 22:57:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:46,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:57:46,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:46,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:57:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:57:46,891 INFO L87 Difference]: Start difference. First operand 3217 states and 4233 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:57:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:47,788 INFO L93 Difference]: Finished difference Result 8235 states and 10747 transitions. [2024-11-11 22:57:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:57:47,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-11 22:57:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:47,806 INFO L225 Difference]: With dead ends: 8235 [2024-11-11 22:57:47,806 INFO L226 Difference]: Without dead ends: 5411 [2024-11-11 22:57:47,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:57:47,811 INFO L435 NwaCegarLoop]: 426 mSDtfsCounter, 1182 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:47,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 1468 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:57:47,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5411 states. [2024-11-11 22:57:48,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5411 to 4895. [2024-11-11 22:57:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4895 states, 3860 states have (on average 1.28860103626943) internal successors, (4974), 3910 states have internal predecessors, (4974), 525 states have call successors, (525), 427 states have call predecessors, (525), 508 states have return successors, (849), 564 states have call predecessors, (849), 523 states have call successors, (849) [2024-11-11 22:57:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4895 states to 4895 states and 6348 transitions. [2024-11-11 22:57:48,198 INFO L78 Accepts]: Start accepts. Automaton has 4895 states and 6348 transitions. Word has length 66 [2024-11-11 22:57:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:48,199 INFO L471 AbstractCegarLoop]: Abstraction has 4895 states and 6348 transitions. [2024-11-11 22:57:48,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:57:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 4895 states and 6348 transitions. [2024-11-11 22:57:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-11 22:57:48,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:48,201 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:48,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:57:48,201 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:48,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:48,201 INFO L85 PathProgramCache]: Analyzing trace with hash 429884498, now seen corresponding path program 1 times [2024-11-11 22:57:48,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:48,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800903068] [2024-11-11 22:57:48,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:48,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:48,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:48,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:48,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:48,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:48,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:48,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:48,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 22:57:48,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:48,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800903068] [2024-11-11 22:57:48,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800903068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:48,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:48,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:57:48,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428158946] [2024-11-11 22:57:48,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:48,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:57:48,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:48,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:57:48,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:57:48,273 INFO L87 Difference]: Start difference. First operand 4895 states and 6348 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:57:49,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:49,067 INFO L93 Difference]: Finished difference Result 6929 states and 8872 transitions. [2024-11-11 22:57:49,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:57:49,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-11 22:57:49,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:49,081 INFO L225 Difference]: With dead ends: 6929 [2024-11-11 22:57:49,081 INFO L226 Difference]: Without dead ends: 4251 [2024-11-11 22:57:49,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:57:49,085 INFO L435 NwaCegarLoop]: 415 mSDtfsCounter, 1413 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:49,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 1467 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:57:49,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2024-11-11 22:57:49,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 3915. [2024-11-11 22:57:49,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3915 states, 3094 states have (on average 1.2750484809308338) internal successors, (3945), 3136 states have internal predecessors, (3945), 427 states have call successors, (427), 345 states have call predecessors, (427), 392 states have return successors, (616), 440 states have call predecessors, (616), 425 states have call successors, (616) [2024-11-11 22:57:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3915 states to 3915 states and 4988 transitions. [2024-11-11 22:57:49,262 INFO L78 Accepts]: Start accepts. Automaton has 3915 states and 4988 transitions. Word has length 73 [2024-11-11 22:57:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:49,263 INFO L471 AbstractCegarLoop]: Abstraction has 3915 states and 4988 transitions. [2024-11-11 22:57:49,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:57:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3915 states and 4988 transitions. [2024-11-11 22:57:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-11 22:57:49,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:49,264 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:49,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:57:49,265 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:49,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:49,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1028355161, now seen corresponding path program 1 times [2024-11-11 22:57:49,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:49,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884750071] [2024-11-11 22:57:49,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:49,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:49,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:49,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:49,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:49,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:49,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:49,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:49,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:49,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:49,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884750071] [2024-11-11 22:57:49,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884750071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:49,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:49,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:57:49,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256924709] [2024-11-11 22:57:49,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:49,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:57:49,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:49,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:57:49,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:57:49,364 INFO L87 Difference]: Start difference. First operand 3915 states and 4988 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-11 22:57:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:50,370 INFO L93 Difference]: Finished difference Result 5425 states and 6826 transitions. [2024-11-11 22:57:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 22:57:50,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2024-11-11 22:57:50,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:50,391 INFO L225 Difference]: With dead ends: 5425 [2024-11-11 22:57:50,392 INFO L226 Difference]: Without dead ends: 5422 [2024-11-11 22:57:50,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:57:50,393 INFO L435 NwaCegarLoop]: 420 mSDtfsCounter, 2130 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:50,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 1479 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:57:50,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5422 states. [2024-11-11 22:57:50,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5422 to 4973. [2024-11-11 22:57:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 3901 states have (on average 1.2609587285311459) internal successors, (4919), 3952 states have internal predecessors, (4919), 553 states have call successors, (553), 459 states have call predecessors, (553), 517 states have return successors, (809), 568 states have call predecessors, (809), 552 states have call successors, (809) [2024-11-11 22:57:50,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 6281 transitions. [2024-11-11 22:57:50,714 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 6281 transitions. Word has length 73 [2024-11-11 22:57:50,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:50,715 INFO L471 AbstractCegarLoop]: Abstraction has 4973 states and 6281 transitions. [2024-11-11 22:57:50,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-11 22:57:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 6281 transitions. [2024-11-11 22:57:50,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-11 22:57:50,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:50,716 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:50,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:57:50,716 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:50,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:50,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1815685188, now seen corresponding path program 1 times [2024-11-11 22:57:50,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:50,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293169391] [2024-11-11 22:57:50,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:50,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:50,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:50,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293169391] [2024-11-11 22:57:50,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293169391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:57:50,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234460203] [2024-11-11 22:57:50,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:50,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:57:50,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:57:50,812 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) [2024-11-11 22:57:50,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 22:57:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:50,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 22:57:50,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:57:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:51,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:57:51,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:51,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234460203] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:57:51,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:57:51,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 10 [2024-11-11 22:57:51,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931889102] [2024-11-11 22:57:51,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:57:51,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 22:57:51,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:51,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 22:57:51,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:57:51,316 INFO L87 Difference]: Start difference. First operand 4973 states and 6281 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-11 22:57:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:53,705 INFO L93 Difference]: Finished difference Result 11401 states and 14129 transitions. [2024-11-11 22:57:53,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-11 22:57:53,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 74 [2024-11-11 22:57:53,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:53,780 INFO L225 Difference]: With dead ends: 11401 [2024-11-11 22:57:53,780 INFO L226 Difference]: Without dead ends: 11398 [2024-11-11 22:57:53,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-11-11 22:57:53,786 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 2528 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:53,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 2558 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:57:53,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11398 states. [2024-11-11 22:57:54,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11398 to 9261. [2024-11-11 22:57:54,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9261 states, 7237 states have (on average 1.2456819123946388) internal successors, (9015), 7332 states have internal predecessors, (9015), 1021 states have call successors, (1021), 867 states have call predecessors, (1021), 1001 states have return successors, (1515), 1068 states have call predecessors, (1515), 1020 states have call successors, (1515) [2024-11-11 22:57:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9261 states to 9261 states and 11551 transitions. [2024-11-11 22:57:54,979 INFO L78 Accepts]: Start accepts. Automaton has 9261 states and 11551 transitions. Word has length 74 [2024-11-11 22:57:54,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:54,983 INFO L471 AbstractCegarLoop]: Abstraction has 9261 states and 11551 transitions. [2024-11-11 22:57:54,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-11 22:57:54,983 INFO L276 IsEmpty]: Start isEmpty. Operand 9261 states and 11551 transitions. [2024-11-11 22:57:54,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-11 22:57:54,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:54,985 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:55,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 22:57:55,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-11 22:57:55,187 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:55,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:55,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1893751961, now seen corresponding path program 2 times [2024-11-11 22:57:55,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:55,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553150969] [2024-11-11 22:57:55,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:55,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:55,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:55,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:55,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:55,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:55,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:55,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:55,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:55,249 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:57:55,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:55,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553150969] [2024-11-11 22:57:55,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553150969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:55,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:55,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:57:55,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315843856] [2024-11-11 22:57:55,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:55,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:57:55,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:55,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:57:55,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:57:55,251 INFO L87 Difference]: Start difference. First operand 9261 states and 11551 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-11 22:57:56,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:56,216 INFO L93 Difference]: Finished difference Result 13959 states and 17369 transitions. [2024-11-11 22:57:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:57:56,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-11-11 22:57:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:56,237 INFO L225 Difference]: With dead ends: 13959 [2024-11-11 22:57:56,237 INFO L226 Difference]: Without dead ends: 5970 [2024-11-11 22:57:56,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:57:56,253 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 1647 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1683 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:56,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1683 Valid, 1217 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:57:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5970 states. [2024-11-11 22:57:56,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5970 to 5139. [2024-11-11 22:57:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 4057 states have (on average 1.2329307369977816) internal successors, (5002), 4106 states have internal predecessors, (5002), 555 states have call successors, (555), 457 states have call predecessors, (555), 525 states have return successors, (775), 582 states have call predecessors, (775), 554 states have call successors, (775) [2024-11-11 22:57:56,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 6332 transitions. [2024-11-11 22:57:56,632 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 6332 transitions. Word has length 77 [2024-11-11 22:57:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:56,632 INFO L471 AbstractCegarLoop]: Abstraction has 5139 states and 6332 transitions. [2024-11-11 22:57:56,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-11 22:57:56,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 6332 transitions. [2024-11-11 22:57:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-11 22:57:56,636 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:56,636 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:56,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:57:56,636 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:56,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:56,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1945352814, now seen corresponding path program 1 times [2024-11-11 22:57:56,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:56,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953278122] [2024-11-11 22:57:56,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:56,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:57:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:56,751 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 22:57:56,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:56,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953278122] [2024-11-11 22:57:56,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953278122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:56,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:56,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:57:56,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56338514] [2024-11-11 22:57:56,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:56,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:57:56,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:56,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:57:56,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:57:56,753 INFO L87 Difference]: Start difference. First operand 5139 states and 6332 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-11 22:57:58,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:57:58,981 INFO L93 Difference]: Finished difference Result 14509 states and 17664 transitions. [2024-11-11 22:57:58,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-11 22:57:58,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-11 22:57:58,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:57:59,006 INFO L225 Difference]: With dead ends: 14509 [2024-11-11 22:57:59,007 INFO L226 Difference]: Without dead ends: 7637 [2024-11-11 22:57:59,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-11 22:57:59,021 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 1801 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:57:59,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 1921 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:57:59,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7637 states. [2024-11-11 22:57:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7637 to 7195. [2024-11-11 22:57:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7195 states, 5610 states have (on average 1.2033868092691622) internal successors, (6751), 5700 states have internal predecessors, (6751), 785 states have call successors, (785), 653 states have call predecessors, (785), 798 states have return successors, (1196), 848 states have call predecessors, (1196), 784 states have call successors, (1196) [2024-11-11 22:57:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7195 states to 7195 states and 8732 transitions. [2024-11-11 22:57:59,666 INFO L78 Accepts]: Start accepts. Automaton has 7195 states and 8732 transitions. Word has length 84 [2024-11-11 22:57:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:57:59,666 INFO L471 AbstractCegarLoop]: Abstraction has 7195 states and 8732 transitions. [2024-11-11 22:57:59,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-11 22:57:59,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7195 states and 8732 transitions. [2024-11-11 22:57:59,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 22:57:59,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:57:59,669 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:57:59,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:57:59,669 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:57:59,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:57:59,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1590667909, now seen corresponding path program 1 times [2024-11-11 22:57:59,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:57:59,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254934806] [2024-11-11 22:57:59,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:57:59,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:57:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:57:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:57:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:57:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:57:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:57:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:57:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:57:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 22:57:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:57:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 22:57:59,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:57:59,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254934806] [2024-11-11 22:57:59,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254934806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:57:59,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:57:59,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:57:59,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506906349] [2024-11-11 22:57:59,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:57:59,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:57:59,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:57:59,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:57:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:57:59,801 INFO L87 Difference]: Start difference. First operand 7195 states and 8732 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-11 22:58:02,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:02,092 INFO L93 Difference]: Finished difference Result 12875 states and 15479 transitions. [2024-11-11 22:58:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-11 22:58:02,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-11 22:58:02,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:02,118 INFO L225 Difference]: With dead ends: 12875 [2024-11-11 22:58:02,119 INFO L226 Difference]: Without dead ends: 6715 [2024-11-11 22:58:02,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2024-11-11 22:58:02,130 INFO L435 NwaCegarLoop]: 418 mSDtfsCounter, 2446 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:02,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 2291 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 22:58:02,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6715 states. [2024-11-11 22:58:02,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6715 to 6253. [2024-11-11 22:58:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6253 states, 4886 states have (on average 1.1972984036021286) internal successors, (5850), 4967 states have internal predecessors, (5850), 673 states have call successors, (673), 557 states have call predecessors, (673), 692 states have return successors, (953), 735 states have call predecessors, (953), 672 states have call successors, (953) [2024-11-11 22:58:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6253 states to 6253 states and 7476 transitions. [2024-11-11 22:58:02,580 INFO L78 Accepts]: Start accepts. Automaton has 6253 states and 7476 transitions. Word has length 93 [2024-11-11 22:58:02,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:02,581 INFO L471 AbstractCegarLoop]: Abstraction has 6253 states and 7476 transitions. [2024-11-11 22:58:02,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-11 22:58:02,581 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 7476 transitions. [2024-11-11 22:58:02,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-11 22:58:02,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:02,587 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:02,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:58:02,588 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:02,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:02,588 INFO L85 PathProgramCache]: Analyzing trace with hash 550789760, now seen corresponding path program 1 times [2024-11-11 22:58:02,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:02,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451127202] [2024-11-11 22:58:02,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:02,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:58:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 22:58:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 22:58:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 22:58:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 22:58:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 22:58:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 22:58:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-11 22:58:02,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:02,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451127202] [2024-11-11 22:58:02,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451127202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:58:02,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767233505] [2024-11-11 22:58:02,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:02,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:58:02,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:58:02,752 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) [2024-11-11 22:58:02,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 22:58:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:02,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 22:58:02,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:58:02,919 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 22:58:02,919 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:58:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767233505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:02,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:58:02,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2024-11-11 22:58:02,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657518518] [2024-11-11 22:58:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:02,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:58:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:02,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:58:02,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:58:02,923 INFO L87 Difference]: Start difference. First operand 6253 states and 7476 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-11 22:58:03,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:03,146 INFO L93 Difference]: Finished difference Result 8568 states and 10187 transitions. [2024-11-11 22:58:03,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:58:03,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2024-11-11 22:58:03,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:03,158 INFO L225 Difference]: With dead ends: 8568 [2024-11-11 22:58:03,158 INFO L226 Difference]: Without dead ends: 2732 [2024-11-11 22:58:03,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:58:03,168 INFO L435 NwaCegarLoop]: 733 mSDtfsCounter, 0 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:03,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3656 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 22:58:03,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2024-11-11 22:58:03,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2682. [2024-11-11 22:58:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2182 states have (on average 1.2204399633363887) internal successors, (2663), 2200 states have internal predecessors, (2663), 251 states have call successors, (251), 195 states have call predecessors, (251), 247 states have return successors, (356), 287 states have call predecessors, (356), 250 states have call successors, (356) [2024-11-11 22:58:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3270 transitions. [2024-11-11 22:58:03,381 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3270 transitions. Word has length 145 [2024-11-11 22:58:03,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:03,382 INFO L471 AbstractCegarLoop]: Abstraction has 2682 states and 3270 transitions. [2024-11-11 22:58:03,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-11 22:58:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3270 transitions. [2024-11-11 22:58:03,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-11 22:58:03,388 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:03,388 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:03,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 22:58:03,592 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,SelfDestructingSolverStorable14 [2024-11-11 22:58:03,593 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:03,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:03,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1471186026, now seen corresponding path program 1 times [2024-11-11 22:58:03,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:03,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498649643] [2024-11-11 22:58:03,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:03,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 22:58:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 22:58:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 22:58:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 22:58:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 22:58:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 22:58:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-11 22:58:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:03,706 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-11 22:58:03,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:03,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498649643] [2024-11-11 22:58:03,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498649643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:03,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:03,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:58:03,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30868173] [2024-11-11 22:58:03,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:03,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:58:03,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:03,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:58:03,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:58:03,708 INFO L87 Difference]: Start difference. First operand 2682 states and 3270 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 22:58:04,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:04,503 INFO L93 Difference]: Finished difference Result 3084 states and 3732 transitions. [2024-11-11 22:58:04,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:04,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 147 [2024-11-11 22:58:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:04,516 INFO L225 Difference]: With dead ends: 3084 [2024-11-11 22:58:04,520 INFO L226 Difference]: Without dead ends: 2338 [2024-11-11 22:58:04,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:58:04,523 INFO L435 NwaCegarLoop]: 410 mSDtfsCounter, 754 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:04,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1721 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:58:04,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2024-11-11 22:58:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 2260. [2024-11-11 22:58:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 1856 states have (on average 1.2332974137931034) internal successors, (2289), 1871 states have internal predecessors, (2289), 205 states have call successors, (205), 155 states have call predecessors, (205), 197 states have return successors, (292), 234 states have call predecessors, (292), 204 states have call successors, (292) [2024-11-11 22:58:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 2786 transitions. [2024-11-11 22:58:04,739 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 2786 transitions. Word has length 147 [2024-11-11 22:58:04,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:04,740 INFO L471 AbstractCegarLoop]: Abstraction has 2260 states and 2786 transitions. [2024-11-11 22:58:04,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 22:58:04,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 2786 transitions. [2024-11-11 22:58:04,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-11 22:58:04,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:04,745 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:04,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:58:04,745 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:04,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:04,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1328194749, now seen corresponding path program 1 times [2024-11-11 22:58:04,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:04,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242980315] [2024-11-11 22:58:04,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:04,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:58:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 22:58:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 22:58:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:58:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 22:58:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 22:58:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 22:58:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:04,860 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-11 22:58:04,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:04,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242980315] [2024-11-11 22:58:04,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242980315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:04,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:04,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:04,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589154824] [2024-11-11 22:58:04,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:04,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:04,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:04,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:04,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:04,862 INFO L87 Difference]: Start difference. First operand 2260 states and 2786 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 22:58:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:06,079 INFO L93 Difference]: Finished difference Result 3849 states and 4671 transitions. [2024-11-11 22:58:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 22:58:06,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 159 [2024-11-11 22:58:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:06,091 INFO L225 Difference]: With dead ends: 3849 [2024-11-11 22:58:06,091 INFO L226 Difference]: Without dead ends: 2316 [2024-11-11 22:58:06,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:58:06,094 INFO L435 NwaCegarLoop]: 436 mSDtfsCounter, 677 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:06,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 2217 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:58:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2024-11-11 22:58:06,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2077. [2024-11-11 22:58:06,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1711 states have (on average 1.2478082992402104) internal successors, (2135), 1728 states have internal predecessors, (2135), 185 states have call successors, (185), 139 states have call predecessors, (185), 179 states have return successors, (262), 210 states have call predecessors, (262), 184 states have call successors, (262) [2024-11-11 22:58:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2582 transitions. [2024-11-11 22:58:06,318 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2582 transitions. Word has length 159 [2024-11-11 22:58:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:06,319 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2582 transitions. [2024-11-11 22:58:06,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 22:58:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2582 transitions. [2024-11-11 22:58:06,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-11 22:58:06,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:06,323 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:06,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 22:58:06,323 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:06,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:06,323 INFO L85 PathProgramCache]: Analyzing trace with hash -151865013, now seen corresponding path program 1 times [2024-11-11 22:58:06,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:06,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983850189] [2024-11-11 22:58:06,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:06,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:58:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 22:58:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 22:58:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 22:58:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 22:58:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 22:58:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 22:58:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-11 22:58:06,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:06,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983850189] [2024-11-11 22:58:06,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983850189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:58:06,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983858749] [2024-11-11 22:58:06,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:06,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:58:06,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:58:06,531 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) [2024-11-11 22:58:06,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 22:58:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:06,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-11 22:58:06,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:58:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-11 22:58:06,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 22:58:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-11 22:58:06,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983858749] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 22:58:06,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 22:58:06,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2024-11-11 22:58:06,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624387641] [2024-11-11 22:58:06,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 22:58:06,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-11 22:58:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-11 22:58:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-11 22:58:06,996 INFO L87 Difference]: Start difference. First operand 2077 states and 2582 transitions. Second operand has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-11 22:58:08,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:08,643 INFO L93 Difference]: Finished difference Result 4024 states and 4960 transitions. [2024-11-11 22:58:08,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-11 22:58:08,643 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 162 [2024-11-11 22:58:08,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:08,653 INFO L225 Difference]: With dead ends: 4024 [2024-11-11 22:58:08,653 INFO L226 Difference]: Without dead ends: 2311 [2024-11-11 22:58:08,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2024-11-11 22:58:08,656 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 2406 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:08,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2437 Valid, 1821 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:58:08,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2024-11-11 22:58:08,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2145. [2024-11-11 22:58:08,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2145 states, 1739 states have (on average 1.2242668200115008) internal successors, (2129), 1762 states have internal predecessors, (2129), 206 states have call successors, (206), 162 states have call predecessors, (206), 198 states have return successors, (312), 221 states have call predecessors, (312), 205 states have call successors, (312) [2024-11-11 22:58:08,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2647 transitions. [2024-11-11 22:58:08,831 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2647 transitions. Word has length 162 [2024-11-11 22:58:08,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:08,831 INFO L471 AbstractCegarLoop]: Abstraction has 2145 states and 2647 transitions. [2024-11-11 22:58:08,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 12 states have internal predecessors, (246), 6 states have call successors, (38), 8 states have call predecessors, (38), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-11 22:58:08,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2647 transitions. [2024-11-11 22:58:08,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:58:08,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:08,834 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:08,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 22:58:09,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-11 22:58:09,035 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:09,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:09,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1717433843, now seen corresponding path program 1 times [2024-11-11 22:58:09,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:09,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168227945] [2024-11-11 22:58:09,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:09,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 22:58:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 22:58:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 22:58:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 22:58:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:58:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 22:58:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 22:58:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 22:58:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-11 22:58:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 22:58:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 22:58:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-11 22:58:09,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168227945] [2024-11-11 22:58:09,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168227945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 22:58:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907093667] [2024-11-11 22:58:09,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:09,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:58:09,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:58:09,165 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) [2024-11-11 22:58:09,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 22:58:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:09,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 22:58:09,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 22:58:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-11 22:58:09,353 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 22:58:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907093667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:09,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 22:58:09,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-11 22:58:09,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535302784] [2024-11-11 22:58:09,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:09,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:58:09,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:09,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:58:09,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 22:58:09,356 INFO L87 Difference]: Start difference. First operand 2145 states and 2647 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 22:58:10,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:10,062 INFO L93 Difference]: Finished difference Result 3788 states and 4566 transitions. [2024-11-11 22:58:10,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:10,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 179 [2024-11-11 22:58:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:10,072 INFO L225 Difference]: With dead ends: 3788 [2024-11-11 22:58:10,072 INFO L226 Difference]: Without dead ends: 1863 [2024-11-11 22:58:10,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-11 22:58:10,076 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 998 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:10,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1109 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:58:10,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2024-11-11 22:58:10,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1826. [2024-11-11 22:58:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1496 states have (on average 1.2306149732620322) internal successors, (1841), 1510 states have internal predecessors, (1841), 171 states have call successors, (171), 130 states have call predecessors, (171), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-11 22:58:10,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2252 transitions. [2024-11-11 22:58:10,271 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2252 transitions. Word has length 179 [2024-11-11 22:58:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:10,271 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2252 transitions. [2024-11-11 22:58:10,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 22:58:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2252 transitions. [2024-11-11 22:58:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:10,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:10,274 INFO L218 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] [2024-11-11 22:58:10,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 22:58:10,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 22:58:10,480 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:10,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1270378032, now seen corresponding path program 1 times [2024-11-11 22:58:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:10,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145860072] [2024-11-11 22:58:10,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:10,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:10,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:10,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:10,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:10,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:10,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:10,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:10,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145860072] [2024-11-11 22:58:10,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145860072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:10,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:10,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:58:10,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678641790] [2024-11-11 22:58:10,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:10,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:58:10,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:10,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:58:10,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:58:10,635 INFO L87 Difference]: Start difference. First operand 1826 states and 2252 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 22:58:12,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:12,615 INFO L93 Difference]: Finished difference Result 2349 states and 3091 transitions. [2024-11-11 22:58:12,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:12,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:12,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:12,626 INFO L225 Difference]: With dead ends: 2349 [2024-11-11 22:58:12,627 INFO L226 Difference]: Without dead ends: 1968 [2024-11-11 22:58:12,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:58:12,629 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 1146 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:12,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 1007 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:58:12,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2024-11-11 22:58:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1826. [2024-11-11 22:58:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1496 states have (on average 1.2299465240641712) internal successors, (1840), 1510 states have internal predecessors, (1840), 171 states have call successors, (171), 130 states have call predecessors, (171), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-11 22:58:12,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2251 transitions. [2024-11-11 22:58:12,891 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2251 transitions. Word has length 178 [2024-11-11 22:58:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:12,892 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2251 transitions. [2024-11-11 22:58:12,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 22:58:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2251 transitions. [2024-11-11 22:58:12,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:12,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:12,894 INFO L218 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] [2024-11-11 22:58:12,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 22:58:12,894 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:12,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:12,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1616863314, now seen corresponding path program 1 times [2024-11-11 22:58:12,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:12,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338409471] [2024-11-11 22:58:12,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:12,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:12,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:12,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:13,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:13,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:13,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:13,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:13,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338409471] [2024-11-11 22:58:13,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338409471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:13,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:13,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:58:13,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069581765] [2024-11-11 22:58:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:13,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:58:13,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:13,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:58:13,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:58:13,025 INFO L87 Difference]: Start difference. First operand 1826 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 22:58:14,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:14,833 INFO L93 Difference]: Finished difference Result 2341 states and 3074 transitions. [2024-11-11 22:58:14,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:14,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:14,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:14,842 INFO L225 Difference]: With dead ends: 2341 [2024-11-11 22:58:14,842 INFO L226 Difference]: Without dead ends: 1968 [2024-11-11 22:58:14,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:58:14,844 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 1137 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:14,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1005 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:58:14,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2024-11-11 22:58:15,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1826. [2024-11-11 22:58:15,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1496 states have (on average 1.2292780748663101) internal successors, (1839), 1510 states have internal predecessors, (1839), 171 states have call successors, (171), 130 states have call predecessors, (171), 157 states have return successors, (240), 186 states have call predecessors, (240), 170 states have call successors, (240) [2024-11-11 22:58:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2250 transitions. [2024-11-11 22:58:15,103 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2250 transitions. Word has length 178 [2024-11-11 22:58:15,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:15,104 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2250 transitions. [2024-11-11 22:58:15,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-11 22:58:15,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2250 transitions. [2024-11-11 22:58:15,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:15,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:15,106 INFO L218 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] [2024-11-11 22:58:15,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 22:58:15,106 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:15,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:15,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2010722092, now seen corresponding path program 1 times [2024-11-11 22:58:15,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:15,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489587915] [2024-11-11 22:58:15,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:15,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:15,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:15,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:15,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:15,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:15,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:15,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:15,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489587915] [2024-11-11 22:58:15,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489587915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:15,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:15,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:58:15,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939552143] [2024-11-11 22:58:15,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:15,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:58:15,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:15,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:58:15,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:58:15,349 INFO L87 Difference]: Start difference. First operand 1826 states and 2250 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2024-11-11 22:58:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:18,322 INFO L93 Difference]: Finished difference Result 2868 states and 3923 transitions. [2024-11-11 22:58:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:58:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:18,331 INFO L225 Difference]: With dead ends: 2868 [2024-11-11 22:58:18,331 INFO L226 Difference]: Without dead ends: 2498 [2024-11-11 22:58:18,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:58:18,333 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 1793 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:18,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 1534 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 22:58:18,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2024-11-11 22:58:18,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2215. [2024-11-11 22:58:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1857 states have (on average 1.2967151319332257) internal successors, (2408), 1872 states have internal predecessors, (2408), 192 states have call successors, (192), 136 states have call predecessors, (192), 164 states have return successors, (264), 207 states have call predecessors, (264), 191 states have call successors, (264) [2024-11-11 22:58:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2864 transitions. [2024-11-11 22:58:18,603 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2864 transitions. Word has length 178 [2024-11-11 22:58:18,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:18,603 INFO L471 AbstractCegarLoop]: Abstraction has 2215 states and 2864 transitions. [2024-11-11 22:58:18,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2024-11-11 22:58:18,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2864 transitions. [2024-11-11 22:58:18,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:18,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:18,605 INFO L218 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] [2024-11-11 22:58:18,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 22:58:18,605 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:18,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:18,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1134736816, now seen corresponding path program 1 times [2024-11-11 22:58:18,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:18,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192475708] [2024-11-11 22:58:18,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:18,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:18,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:18,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:18,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:18,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:18,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:18,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:18,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192475708] [2024-11-11 22:58:18,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192475708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:18,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:18,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:18,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920808081] [2024-11-11 22:58:18,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:18,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:18,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:18,777 INFO L87 Difference]: Start difference. First operand 2215 states and 2864 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:22,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:22,990 INFO L93 Difference]: Finished difference Result 3809 states and 5429 transitions. [2024-11-11 22:58:22,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:58:22,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:22,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:23,003 INFO L225 Difference]: With dead ends: 3809 [2024-11-11 22:58:23,004 INFO L226 Difference]: Without dead ends: 3050 [2024-11-11 22:58:23,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:58:23,006 INFO L435 NwaCegarLoop]: 638 mSDtfsCounter, 1834 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 3818 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 3914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:23,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 2828 Invalid, 3914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3818 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-11 22:58:23,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2024-11-11 22:58:23,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2578. [2024-11-11 22:58:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2192 states have (on average 1.3343978102189782) internal successors, (2925), 2208 states have internal predecessors, (2925), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (287), 229 states have call predecessors, (287), 212 states have call successors, (287) [2024-11-11 22:58:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3425 transitions. [2024-11-11 22:58:23,321 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3425 transitions. Word has length 178 [2024-11-11 22:58:23,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:23,322 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 3425 transitions. [2024-11-11 22:58:23,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:23,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3425 transitions. [2024-11-11 22:58:23,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:23,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:23,324 INFO L218 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] [2024-11-11 22:58:23,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 22:58:23,325 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:23,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:23,325 INFO L85 PathProgramCache]: Analyzing trace with hash -270454862, now seen corresponding path program 1 times [2024-11-11 22:58:23,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:23,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888178158] [2024-11-11 22:58:23,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:23,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:23,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:23,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:23,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:23,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:23,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:23,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:23,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:23,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888178158] [2024-11-11 22:58:23,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888178158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:23,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:23,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:23,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104244591] [2024-11-11 22:58:23,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:23,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:23,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:23,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:23,525 INFO L87 Difference]: Start difference. First operand 2578 states and 3425 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:25,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:25,665 INFO L93 Difference]: Finished difference Result 4190 states and 6030 transitions. [2024-11-11 22:58:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:25,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:25,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:25,677 INFO L225 Difference]: With dead ends: 4190 [2024-11-11 22:58:25,677 INFO L226 Difference]: Without dead ends: 3068 [2024-11-11 22:58:25,680 INFO L434 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 [2024-11-11 22:58:25,680 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1361 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:25,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 1556 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 22:58:25,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2024-11-11 22:58:25,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2578. [2024-11-11 22:58:25,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2192 states have (on average 1.3330291970802919) internal successors, (2922), 2208 states have internal predecessors, (2922), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (287), 229 states have call predecessors, (287), 212 states have call successors, (287) [2024-11-11 22:58:25,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3422 transitions. [2024-11-11 22:58:25,974 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3422 transitions. Word has length 178 [2024-11-11 22:58:25,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:25,974 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 3422 transitions. [2024-11-11 22:58:25,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:25,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3422 transitions. [2024-11-11 22:58:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:25,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:25,975 INFO L218 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] [2024-11-11 22:58:25,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 22:58:25,976 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:25,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:25,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1623879024, now seen corresponding path program 1 times [2024-11-11 22:58:25,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:25,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710638849] [2024-11-11 22:58:25,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:25,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:26,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:26,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:26,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:26,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:26,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:26,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:26,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710638849] [2024-11-11 22:58:26,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710638849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:26,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:26,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:26,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949981633] [2024-11-11 22:58:26,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:26,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:26,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:26,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:26,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:26,153 INFO L87 Difference]: Start difference. First operand 2578 states and 3422 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:28,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:28,166 INFO L93 Difference]: Finished difference Result 4186 states and 6013 transitions. [2024-11-11 22:58:28,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:28,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:28,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:28,178 INFO L225 Difference]: With dead ends: 4186 [2024-11-11 22:58:28,179 INFO L226 Difference]: Without dead ends: 3064 [2024-11-11 22:58:28,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:58:28,185 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1662 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:28,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 1298 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:58:28,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2024-11-11 22:58:28,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 2578. [2024-11-11 22:58:28,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2192 states have (on average 1.3316605839416058) internal successors, (2919), 2208 states have internal predecessors, (2919), 213 states have call successors, (213), 142 states have call predecessors, (213), 171 states have return successors, (287), 229 states have call predecessors, (287), 212 states have call successors, (287) [2024-11-11 22:58:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3419 transitions. [2024-11-11 22:58:28,592 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3419 transitions. Word has length 178 [2024-11-11 22:58:28,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:28,592 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 3419 transitions. [2024-11-11 22:58:28,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3419 transitions. [2024-11-11 22:58:28,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:28,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:28,594 INFO L218 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] [2024-11-11 22:58:28,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 22:58:28,595 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:28,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:28,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1224507406, now seen corresponding path program 1 times [2024-11-11 22:58:28,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:28,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688372506] [2024-11-11 22:58:28,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:28,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:28,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:28,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:28,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:28,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:28,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:28,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:28,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688372506] [2024-11-11 22:58:28,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688372506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:28,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:28,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384705892] [2024-11-11 22:58:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:28,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:28,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:28,850 INFO L87 Difference]: Start difference. First operand 2578 states and 3419 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:32,583 INFO L93 Difference]: Finished difference Result 5187 states and 7580 transitions. [2024-11-11 22:58:32,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:58:32,583 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:32,598 INFO L225 Difference]: With dead ends: 5187 [2024-11-11 22:58:32,598 INFO L226 Difference]: Without dead ends: 4065 [2024-11-11 22:58:32,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:58:32,601 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 1815 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 3743 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 3841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 3743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:32,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 2826 Invalid, 3841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 3743 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-11 22:58:32,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2024-11-11 22:58:33,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 3313. [2024-11-11 22:58:33,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 2871 states have (on average 1.3800069662138628) internal successors, (3962), 2889 states have internal predecessors, (3962), 255 states have call successors, (255), 154 states have call predecessors, (255), 185 states have return successors, (337), 273 states have call predecessors, (337), 254 states have call successors, (337) [2024-11-11 22:58:33,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 4554 transitions. [2024-11-11 22:58:33,031 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 4554 transitions. Word has length 178 [2024-11-11 22:58:33,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:33,032 INFO L471 AbstractCegarLoop]: Abstraction has 3313 states and 4554 transitions. [2024-11-11 22:58:33,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 4554 transitions. [2024-11-11 22:58:33,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:33,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:33,034 INFO L218 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] [2024-11-11 22:58:33,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-11 22:58:33,034 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:33,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2147292464, now seen corresponding path program 1 times [2024-11-11 22:58:33,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:33,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129245217] [2024-11-11 22:58:33,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:33,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:33,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:33,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:33,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:33,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:33,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:33,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129245217] [2024-11-11 22:58:33,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129245217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:33,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:33,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833354762] [2024-11-11 22:58:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:33,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:33,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:33,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:33,213 INFO L87 Difference]: Start difference. First operand 3313 states and 4554 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:35,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:35,281 INFO L93 Difference]: Finished difference Result 5910 states and 8704 transitions. [2024-11-11 22:58:35,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:35,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:35,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:35,299 INFO L225 Difference]: With dead ends: 5910 [2024-11-11 22:58:35,299 INFO L226 Difference]: Without dead ends: 4053 [2024-11-11 22:58:35,303 INFO L434 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 [2024-11-11 22:58:35,304 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1575 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:35,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 1299 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:58:35,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4053 states. [2024-11-11 22:58:35,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4053 to 3313. [2024-11-11 22:58:35,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 2871 states have (on average 1.3782654127481713) internal successors, (3957), 2889 states have internal predecessors, (3957), 255 states have call successors, (255), 154 states have call predecessors, (255), 185 states have return successors, (337), 273 states have call predecessors, (337), 254 states have call successors, (337) [2024-11-11 22:58:35,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 4549 transitions. [2024-11-11 22:58:35,823 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 4549 transitions. Word has length 178 [2024-11-11 22:58:35,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:35,824 INFO L471 AbstractCegarLoop]: Abstraction has 3313 states and 4549 transitions. [2024-11-11 22:58:35,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 4549 transitions. [2024-11-11 22:58:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:35,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:35,825 INFO L218 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] [2024-11-11 22:58:35,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-11 22:58:35,826 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:35,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:35,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1761812430, now seen corresponding path program 1 times [2024-11-11 22:58:35,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:35,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033008866] [2024-11-11 22:58:35,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:35,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:35,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:35,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:36,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:36,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:36,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:36,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:36,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033008866] [2024-11-11 22:58:36,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033008866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:36,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:36,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:36,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406057037] [2024-11-11 22:58:36,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:36,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:36,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:36,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:36,050 INFO L87 Difference]: Start difference. First operand 3313 states and 4549 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:40,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:40,153 INFO L93 Difference]: Finished difference Result 7858 states and 11735 transitions. [2024-11-11 22:58:40,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:58:40,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:40,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:40,176 INFO L225 Difference]: With dead ends: 7858 [2024-11-11 22:58:40,176 INFO L226 Difference]: Without dead ends: 6001 [2024-11-11 22:58:40,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:58:40,181 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 1807 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 3705 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 3803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 3705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:40,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 2826 Invalid, 3803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 3705 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-11 22:58:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2024-11-11 22:58:40,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 4787. [2024-11-11 22:58:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4787 states, 4233 states have (on average 1.427120245688637) internal successors, (6041), 4255 states have internal predecessors, (6041), 339 states have call successors, (339), 178 states have call predecessors, (339), 213 states have return successors, (443), 361 states have call predecessors, (443), 338 states have call successors, (443) [2024-11-11 22:58:40,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 6823 transitions. [2024-11-11 22:58:40,797 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 6823 transitions. Word has length 178 [2024-11-11 22:58:40,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:40,797 INFO L471 AbstractCegarLoop]: Abstraction has 4787 states and 6823 transitions. [2024-11-11 22:58:40,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 6823 transitions. [2024-11-11 22:58:40,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:40,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:40,801 INFO L218 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] [2024-11-11 22:58:40,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-11 22:58:40,801 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:40,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2026459920, now seen corresponding path program 1 times [2024-11-11 22:58:40,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:40,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285539471] [2024-11-11 22:58:40,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:40,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:40,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:40,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:41,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:41,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:41,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:41,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:41,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:41,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285539471] [2024-11-11 22:58:41,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285539471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:41,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:41,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:41,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306530798] [2024-11-11 22:58:41,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:41,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:41,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:41,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:41,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:41,023 INFO L87 Difference]: Start difference. First operand 4787 states and 6823 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:43,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:43,274 INFO L93 Difference]: Finished difference Result 9354 states and 14079 transitions. [2024-11-11 22:58:43,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:43,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:43,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:43,288 INFO L225 Difference]: With dead ends: 9354 [2024-11-11 22:58:43,288 INFO L226 Difference]: Without dead ends: 6023 [2024-11-11 22:58:43,292 INFO L434 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 [2024-11-11 22:58:43,293 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1362 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:43,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 1556 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:58:43,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2024-11-11 22:58:43,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 4787. [2024-11-11 22:58:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4787 states, 4233 states have (on average 1.4249940940231514) internal successors, (6032), 4255 states have internal predecessors, (6032), 339 states have call successors, (339), 178 states have call predecessors, (339), 213 states have return successors, (443), 361 states have call predecessors, (443), 338 states have call successors, (443) [2024-11-11 22:58:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 6814 transitions. [2024-11-11 22:58:43,771 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 6814 transitions. Word has length 178 [2024-11-11 22:58:43,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:43,772 INFO L471 AbstractCegarLoop]: Abstraction has 4787 states and 6814 transitions. [2024-11-11 22:58:43,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 6814 transitions. [2024-11-11 22:58:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:43,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:43,774 INFO L218 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] [2024-11-11 22:58:43,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-11 22:58:43,774 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:43,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:43,775 INFO L85 PathProgramCache]: Analyzing trace with hash -95334286, now seen corresponding path program 1 times [2024-11-11 22:58:43,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:43,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824339876] [2024-11-11 22:58:43,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:43,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:43,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:43,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:43,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:43,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:43,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:43,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:43,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:43,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824339876] [2024-11-11 22:58:43,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824339876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:43,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:43,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:43,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305595705] [2024-11-11 22:58:43,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:43,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:43,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:43,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:43,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:43,938 INFO L87 Difference]: Start difference. First operand 4787 states and 6814 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:46,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:46,369 INFO L93 Difference]: Finished difference Result 9334 states and 14012 transitions. [2024-11-11 22:58:46,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:46,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:46,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:46,384 INFO L225 Difference]: With dead ends: 9334 [2024-11-11 22:58:46,384 INFO L226 Difference]: Without dead ends: 6003 [2024-11-11 22:58:46,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:58:46,389 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1359 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:46,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 1556 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 22:58:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2024-11-11 22:58:46,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 4787. [2024-11-11 22:58:46,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4787 states, 4233 states have (on average 1.422867942357666) internal successors, (6023), 4255 states have internal predecessors, (6023), 339 states have call successors, (339), 178 states have call predecessors, (339), 213 states have return successors, (443), 361 states have call predecessors, (443), 338 states have call successors, (443) [2024-11-11 22:58:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 6805 transitions. [2024-11-11 22:58:46,835 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 6805 transitions. Word has length 178 [2024-11-11 22:58:46,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:46,836 INFO L471 AbstractCegarLoop]: Abstraction has 4787 states and 6805 transitions. [2024-11-11 22:58:46,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:46,836 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 6805 transitions. [2024-11-11 22:58:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:46,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:46,838 INFO L218 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] [2024-11-11 22:58:46,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-11 22:58:46,838 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:46,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:46,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1801645172, now seen corresponding path program 1 times [2024-11-11 22:58:46,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:46,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705467607] [2024-11-11 22:58:46,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:46,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:46,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:46,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:47,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:47,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:47,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:47,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:47,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:47,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705467607] [2024-11-11 22:58:47,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705467607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:47,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:47,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:47,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581348970] [2024-11-11 22:58:47,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:47,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:47,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:47,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:47,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:47,079 INFO L87 Difference]: Start difference. First operand 4787 states and 6805 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:49,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:49,144 INFO L93 Difference]: Finished difference Result 9324 states and 13965 transitions. [2024-11-11 22:58:49,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:49,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:49,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:49,161 INFO L225 Difference]: With dead ends: 9324 [2024-11-11 22:58:49,161 INFO L226 Difference]: Without dead ends: 5993 [2024-11-11 22:58:49,167 INFO L434 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 [2024-11-11 22:58:49,168 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1574 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:49,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 1299 Invalid, 1881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:58:49,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5993 states. [2024-11-11 22:58:49,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5993 to 4787. [2024-11-11 22:58:49,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4787 states, 4233 states have (on average 1.4207417906921804) internal successors, (6014), 4255 states have internal predecessors, (6014), 339 states have call successors, (339), 178 states have call predecessors, (339), 213 states have return successors, (443), 361 states have call predecessors, (443), 338 states have call successors, (443) [2024-11-11 22:58:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 6796 transitions. [2024-11-11 22:58:49,657 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 6796 transitions. Word has length 178 [2024-11-11 22:58:49,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:49,657 INFO L471 AbstractCegarLoop]: Abstraction has 4787 states and 6796 transitions. [2024-11-11 22:58:49,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 6796 transitions. [2024-11-11 22:58:49,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:49,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:49,660 INFO L218 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] [2024-11-11 22:58:49,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-11 22:58:49,660 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:49,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:49,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2139932722, now seen corresponding path program 1 times [2024-11-11 22:58:49,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:49,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983297934] [2024-11-11 22:58:49,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:49,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:49,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:49,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:49,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:49,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:49,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:49,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:49,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:49,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983297934] [2024-11-11 22:58:49,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983297934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:49,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:49,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:49,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995106440] [2024-11-11 22:58:49,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:49,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:49,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:49,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:49,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:49,842 INFO L87 Difference]: Start difference. First operand 4787 states and 6796 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:53,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:53,754 INFO L93 Difference]: Finished difference Result 13170 states and 19895 transitions. [2024-11-11 22:58:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:58:53,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:53,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:53,779 INFO L225 Difference]: With dead ends: 13170 [2024-11-11 22:58:53,779 INFO L226 Difference]: Without dead ends: 9839 [2024-11-11 22:58:53,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:58:53,794 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 1874 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 3117 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 3259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 3117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:53,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 1870 Invalid, 3259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 3117 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 22:58:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9839 states. [2024-11-11 22:58:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9839 to 7776. [2024-11-11 22:58:54,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7776 states, 6998 states have (on average 1.459274078308088) internal successors, (10212), 7028 states have internal predecessors, (10212), 507 states have call successors, (507), 226 states have call predecessors, (507), 269 states have return successors, (673), 537 states have call predecessors, (673), 506 states have call successors, (673) [2024-11-11 22:58:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 11392 transitions. [2024-11-11 22:58:54,640 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 11392 transitions. Word has length 178 [2024-11-11 22:58:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:54,640 INFO L471 AbstractCegarLoop]: Abstraction has 7776 states and 11392 transitions. [2024-11-11 22:58:54,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:54,641 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 11392 transitions. [2024-11-11 22:58:54,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:54,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:54,644 INFO L218 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] [2024-11-11 22:58:54,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-11 22:58:54,645 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:54,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:54,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1728480076, now seen corresponding path program 1 times [2024-11-11 22:58:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:54,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035583907] [2024-11-11 22:58:54,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:54,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:54,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:54,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:54,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:54,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:54,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:54,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:54,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035583907] [2024-11-11 22:58:54,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035583907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:54,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:54,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:54,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014703020] [2024-11-11 22:58:54,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:54,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:54,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:54,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:54,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:54,894 INFO L87 Difference]: Start difference. First operand 7776 states and 11392 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:57,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:57,077 INFO L93 Difference]: Finished difference Result 16218 states and 24680 transitions. [2024-11-11 22:58:57,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:58:57,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 178 [2024-11-11 22:58:57,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:57,105 INFO L225 Difference]: With dead ends: 16218 [2024-11-11 22:58:57,105 INFO L226 Difference]: Without dead ends: 9898 [2024-11-11 22:58:57,115 INFO L434 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 [2024-11-11 22:58:57,116 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 1571 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:57,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 1297 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:58:57,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9898 states. [2024-11-11 22:58:57,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9898 to 7776. [2024-11-11 22:58:57,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7776 states, 6998 states have (on average 1.4568448128036582) internal successors, (10195), 7028 states have internal predecessors, (10195), 507 states have call successors, (507), 226 states have call predecessors, (507), 269 states have return successors, (673), 537 states have call predecessors, (673), 506 states have call successors, (673) [2024-11-11 22:58:57,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 11375 transitions. [2024-11-11 22:58:57,814 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 11375 transitions. Word has length 178 [2024-11-11 22:58:57,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:57,815 INFO L471 AbstractCegarLoop]: Abstraction has 7776 states and 11375 transitions. [2024-11-11 22:58:57,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-11 22:58:57,815 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 11375 transitions. [2024-11-11 22:58:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-11 22:58:57,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:57,818 INFO L218 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] [2024-11-11 22:58:57,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-11 22:58:57,819 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:57,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:57,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2026057714, now seen corresponding path program 1 times [2024-11-11 22:58:57,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:57,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632176615] [2024-11-11 22:58:57,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:57,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:58:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:58:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:58:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:58:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:58,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:58,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632176615] [2024-11-11 22:58:58,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632176615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:58,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:58,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:58,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024730733] [2024-11-11 22:58:58,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:58,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:58,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:58,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:58,039 INFO L87 Difference]: Start difference. First operand 7776 states and 11375 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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)