./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.02.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.02.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0792bb078b549cb8c62d642eddb09d42b03fb2451c67a454a8e8576be6796f29 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:04:34,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:04:34,444 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:04:34,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:04:34,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:04:34,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:04:34,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:04:34,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:04:34,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:04:34,478 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:04:34,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:04:34,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:04:34,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:04:34,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:04:34,481 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:04:34,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:04:34,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:04:34,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:04:34,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:04:34,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:04:34,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:04:34,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:04:34,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:04:34,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:04:34,485 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:04:34,485 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:04:34,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:04:34,486 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:04:34,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:04:34,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:04:34,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:04:34,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:04:34,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:04:34,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:04:34,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:04:34,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:04:34,487 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:04:34,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:04:34,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:04:34,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:04:34,488 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:04:34,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:04:34,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0792bb078b549cb8c62d642eddb09d42b03fb2451c67a454a8e8576be6796f29 [2024-11-22 04:04:34,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:04:34,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:04:34,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:04:34,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:04:34,705 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:04:34,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.02.cil-1.c [2024-11-22 04:04:35,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:04:36,167 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:04:36,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.02.cil-1.c [2024-11-22 04:04:36,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/007b7aa07/5fc568b1fbe643bdb835a1030adbeb61/FLAG711307203 [2024-11-22 04:04:36,530 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/007b7aa07/5fc568b1fbe643bdb835a1030adbeb61 [2024-11-22 04:04:36,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:04:36,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:04:36,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:04:36,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:04:36,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:04:36,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469f869c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36, skipping insertion in model container [2024-11-22 04:04:36,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:04:36,720 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.02.cil-1.c[914,927] [2024-11-22 04:04:36,757 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.02.cil-1.c[7115,7128] [2024-11-22 04:04:36,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:04:36,804 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:04:36,813 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.02.cil-1.c[914,927] [2024-11-22 04:04:36,830 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.02.cil-1.c[7115,7128] [2024-11-22 04:04:36,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:04:36,865 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:04:36,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36 WrapperNode [2024-11-22 04:04:36,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:04:36,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:04:36,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:04:36,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:04:36,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,910 INFO L138 Inliner]: procedures = 57, calls = 63, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 468 [2024-11-22 04:04:36,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:04:36,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:04:36,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:04:36,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:04:36,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,927 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,952 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 04:04:36,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:04:36,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:04:36,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:04:36,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:04:36,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (1/1) ... [2024-11-22 04:04:36,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:04:36,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:04:37,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 04:04:37,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 04:04:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:04:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:04:37,044 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:04:37,044 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-22 04:04:37,045 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-22 04:04:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:04:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:04:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:04:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:04:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-22 04:04:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-22 04:04:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:04:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:04:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:04:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:04:37,046 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-22 04:04:37,046 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-22 04:04:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-22 04:04:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-22 04:04:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-22 04:04:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-22 04:04:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:04:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:04:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:04:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:04:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:04:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-22 04:04:37,047 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-22 04:04:37,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:04:37,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:04:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:04:37,048 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:04:37,143 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:04:37,145 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:04:37,651 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-22 04:04:37,651 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:04:37,669 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:04:37,670 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-22 04:04:37,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:37 BoogieIcfgContainer [2024-11-22 04:04:37,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:04:37,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:04:37,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:04:37,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:04:37,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:04:36" (1/3) ... [2024-11-22 04:04:37,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1433905b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:37, skipping insertion in model container [2024-11-22 04:04:37,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:36" (2/3) ... [2024-11-22 04:04:37,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1433905b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:37, skipping insertion in model container [2024-11-22 04:04:37,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:37" (3/3) ... [2024-11-22 04:04:37,678 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.02.cil-1.c [2024-11-22 04:04:37,695 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:04:37,695 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:04:37,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:04:37,755 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;@73aec312, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:04:37,756 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:04:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 236 states, 189 states have (on average 1.5449735449735449) internal successors, (292), 195 states have internal predecessors, (292), 30 states have call successors, (30), 14 states have call predecessors, (30), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-22 04:04:37,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:37,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:37,771 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:37,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:37,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:37,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1350239299, now seen corresponding path program 1 times [2024-11-22 04:04:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:37,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995993698] [2024-11-22 04:04:37,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:37,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:38,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995993698] [2024-11-22 04:04:38,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995993698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:38,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:38,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:38,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663738753] [2024-11-22 04:04:38,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:38,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:38,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:38,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:38,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:38,066 INFO L87 Difference]: Start difference. First operand has 236 states, 189 states have (on average 1.5449735449735449) internal successors, (292), 195 states have internal predecessors, (292), 30 states have call successors, (30), 14 states have call predecessors, (30), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:38,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:38,118 INFO L93 Difference]: Finished difference Result 455 states and 677 transitions. [2024-11-22 04:04:38,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:38,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:04:38,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:38,130 INFO L225 Difference]: With dead ends: 455 [2024-11-22 04:04:38,131 INFO L226 Difference]: Without dead ends: 226 [2024-11-22 04:04:38,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:38,136 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 131 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:38,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 519 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-22 04:04:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-11-22 04:04:38,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 181 states have (on average 1.441988950276243) internal successors, (261), 185 states have internal predecessors, (261), 30 states have call successors, (30), 14 states have call predecessors, (30), 13 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-22 04:04:38,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 319 transitions. [2024-11-22 04:04:38,202 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 319 transitions. Word has length 65 [2024-11-22 04:04:38,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:38,205 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 319 transitions. [2024-11-22 04:04:38,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:38,206 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 319 transitions. [2024-11-22 04:04:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:38,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:38,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:38,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:04:38,210 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:38,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:38,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1390914049, now seen corresponding path program 1 times [2024-11-22 04:04:38,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:38,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423562522] [2024-11-22 04:04:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:38,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:38,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:38,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423562522] [2024-11-22 04:04:38,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423562522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:38,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:38,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:38,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744367157] [2024-11-22 04:04:38,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:38,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:38,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:38,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:38,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:38,434 INFO L87 Difference]: Start difference. First operand 226 states and 319 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:38,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:38,905 INFO L93 Difference]: Finished difference Result 417 states and 587 transitions. [2024-11-22 04:04:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:38,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:04:38,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:38,909 INFO L225 Difference]: With dead ends: 417 [2024-11-22 04:04:38,909 INFO L226 Difference]: Without dead ends: 329 [2024-11-22 04:04:38,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:38,911 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 274 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:38,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 722 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-22 04:04:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 322. [2024-11-22 04:04:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 257 states have (on average 1.4202334630350195) internal successors, (365), 263 states have internal predecessors, (365), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (44), 40 states have call predecessors, (44), 39 states have call successors, (44) [2024-11-22 04:04:38,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 450 transitions. [2024-11-22 04:04:38,933 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 450 transitions. Word has length 65 [2024-11-22 04:04:38,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:38,934 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 450 transitions. [2024-11-22 04:04:38,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:38,934 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 450 transitions. [2024-11-22 04:04:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:38,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:38,936 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:38,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:04:38,937 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:38,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:38,937 INFO L85 PathProgramCache]: Analyzing trace with hash -987128098, now seen corresponding path program 1 times [2024-11-22 04:04:38,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:38,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951303125] [2024-11-22 04:04:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:38,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:39,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:39,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951303125] [2024-11-22 04:04:39,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951303125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:39,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:39,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:39,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192164219] [2024-11-22 04:04:39,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:39,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:39,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:39,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:39,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:39,033 INFO L87 Difference]: Start difference. First operand 322 states and 450 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:39,064 INFO L93 Difference]: Finished difference Result 504 states and 698 transitions. [2024-11-22 04:04:39,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:39,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 04:04:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:39,067 INFO L225 Difference]: With dead ends: 504 [2024-11-22 04:04:39,067 INFO L226 Difference]: Without dead ends: 327 [2024-11-22 04:04:39,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:39,071 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 0 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:39,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1575 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-22 04:04:39,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-11-22 04:04:39,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 261 states have (on average 1.4099616858237547) internal successors, (368), 267 states have internal predecessors, (368), 41 states have call successors, (41), 21 states have call predecessors, (41), 23 states have return successors, (45), 41 states have call predecessors, (45), 39 states have call successors, (45) [2024-11-22 04:04:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 454 transitions. [2024-11-22 04:04:39,091 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 454 transitions. Word has length 65 [2024-11-22 04:04:39,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:39,091 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 454 transitions. [2024-11-22 04:04:39,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:39,092 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 454 transitions. [2024-11-22 04:04:39,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:39,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:39,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:39,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:04:39,094 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:39,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:39,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2016487396, now seen corresponding path program 1 times [2024-11-22 04:04:39,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:39,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168083080] [2024-11-22 04:04:39,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:39,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:39,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:39,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:39,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168083080] [2024-11-22 04:04:39,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168083080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:39,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:39,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:39,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530925013] [2024-11-22 04:04:39,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:39,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:39,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:39,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:39,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:39,187 INFO L87 Difference]: Start difference. First operand 327 states and 454 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:04:39,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:39,676 INFO L93 Difference]: Finished difference Result 1670 states and 2297 transitions. [2024-11-22 04:04:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:39,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-22 04:04:39,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:39,688 INFO L225 Difference]: With dead ends: 1670 [2024-11-22 04:04:39,688 INFO L226 Difference]: Without dead ends: 1488 [2024-11-22 04:04:39,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:04:39,691 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1216 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:39,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 1573 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:39,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2024-11-22 04:04:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1374. [2024-11-22 04:04:39,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1086 states have (on average 1.3480662983425415) internal successors, (1464), 1106 states have internal predecessors, (1464), 151 states have call successors, (151), 117 states have call predecessors, (151), 135 states have return successors, (209), 153 states have call predecessors, (209), 149 states have call successors, (209) [2024-11-22 04:04:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1824 transitions. [2024-11-22 04:04:39,797 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1824 transitions. Word has length 65 [2024-11-22 04:04:39,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:39,798 INFO L471 AbstractCegarLoop]: Abstraction has 1374 states and 1824 transitions. [2024-11-22 04:04:39,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 04:04:39,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1824 transitions. [2024-11-22 04:04:39,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:39,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:39,801 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:39,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:04:39,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:39,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:39,802 INFO L85 PathProgramCache]: Analyzing trace with hash -965038307, now seen corresponding path program 1 times [2024-11-22 04:04:39,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:39,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786727220] [2024-11-22 04:04:39,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:39,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:39,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:39,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786727220] [2024-11-22 04:04:39,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786727220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:39,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:39,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:39,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473874796] [2024-11-22 04:04:39,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:39,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:39,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:39,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:39,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:39,874 INFO L87 Difference]: Start difference. First operand 1374 states and 1824 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:39,984 INFO L93 Difference]: Finished difference Result 2633 states and 3512 transitions. [2024-11-22 04:04:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:39,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 04:04:39,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:39,994 INFO L225 Difference]: With dead ends: 2633 [2024-11-22 04:04:39,994 INFO L226 Difference]: Without dead ends: 1404 [2024-11-22 04:04:39,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:39,999 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 0 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:39,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1575 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:40,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-11-22 04:04:40,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2024-11-22 04:04:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1110 states have (on average 1.3315315315315315) internal successors, (1478), 1130 states have internal predecessors, (1478), 151 states have call successors, (151), 117 states have call predecessors, (151), 141 states have return successors, (221), 159 states have call predecessors, (221), 149 states have call successors, (221) [2024-11-22 04:04:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1850 transitions. [2024-11-22 04:04:40,082 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1850 transitions. Word has length 65 [2024-11-22 04:04:40,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:40,083 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1850 transitions. [2024-11-22 04:04:40,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1850 transitions. [2024-11-22 04:04:40,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:40,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:40,087 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:40,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:04:40,088 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:40,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:40,089 INFO L85 PathProgramCache]: Analyzing trace with hash 421165087, now seen corresponding path program 1 times [2024-11-22 04:04:40,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:40,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120905587] [2024-11-22 04:04:40,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:40,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:40,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:40,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120905587] [2024-11-22 04:04:40,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120905587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:40,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:40,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:04:40,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247144989] [2024-11-22 04:04:40,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:40,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:04:40,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:04:40,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:04:40,144 INFO L87 Difference]: Start difference. First operand 1404 states and 1850 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:40,498 INFO L93 Difference]: Finished difference Result 3728 states and 4914 transitions. [2024-11-22 04:04:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:04:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:04:40,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:40,510 INFO L225 Difference]: With dead ends: 3728 [2024-11-22 04:04:40,510 INFO L226 Difference]: Without dead ends: 2471 [2024-11-22 04:04:40,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:40,515 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 423 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:40,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 378 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:40,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2024-11-22 04:04:40,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2467. [2024-11-22 04:04:40,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 1936 states have (on average 1.296487603305785) internal successors, (2510), 1970 states have internal predecessors, (2510), 264 states have call successors, (264), 213 states have call predecessors, (264), 265 states have return successors, (440), 286 states have call predecessors, (440), 262 states have call successors, (440) [2024-11-22 04:04:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3214 transitions. [2024-11-22 04:04:40,635 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3214 transitions. Word has length 65 [2024-11-22 04:04:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:40,635 INFO L471 AbstractCegarLoop]: Abstraction has 2467 states and 3214 transitions. [2024-11-22 04:04:40,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3214 transitions. [2024-11-22 04:04:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:04:40,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:40,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:40,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:04:40,637 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:40,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash 854478771, now seen corresponding path program 1 times [2024-11-22 04:04:40,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:40,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544331941] [2024-11-22 04:04:40,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:40,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:40,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:40,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:40,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544331941] [2024-11-22 04:04:40,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544331941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:40,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:40,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:40,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005454804] [2024-11-22 04:04:40,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:40,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:40,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:40,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:40,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:40,670 INFO L87 Difference]: Start difference. First operand 2467 states and 3214 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:40,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:40,847 INFO L93 Difference]: Finished difference Result 6808 states and 8937 transitions. [2024-11-22 04:04:40,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:40,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-22 04:04:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:40,868 INFO L225 Difference]: With dead ends: 6808 [2024-11-22 04:04:40,868 INFO L226 Difference]: Without dead ends: 4474 [2024-11-22 04:04:40,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:40,876 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 102 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:40,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 619 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:40,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2024-11-22 04:04:41,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 4386. [2024-11-22 04:04:41,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 3403 states have (on average 1.2829856009403469) internal successors, (4366), 3451 states have internal predecessors, (4366), 487 states have call successors, (487), 405 states have call predecessors, (487), 494 states have return successors, (836), 532 states have call predecessors, (836), 485 states have call successors, (836) [2024-11-22 04:04:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 5689 transitions. [2024-11-22 04:04:41,135 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 5689 transitions. Word has length 66 [2024-11-22 04:04:41,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:41,136 INFO L471 AbstractCegarLoop]: Abstraction has 4386 states and 5689 transitions. [2024-11-22 04:04:41,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 04:04:41,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 5689 transitions. [2024-11-22 04:04:41,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:04:41,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:41,138 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:41,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:04:41,138 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:41,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash 686765628, now seen corresponding path program 1 times [2024-11-22 04:04:41,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270406718] [2024-11-22 04:04:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:41,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:41,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:41,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270406718] [2024-11-22 04:04:41,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270406718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:41,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:41,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:41,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573506495] [2024-11-22 04:04:41,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:41,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:41,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:41,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:41,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:41,175 INFO L87 Difference]: Start difference. First operand 4386 states and 5689 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:41,291 INFO L93 Difference]: Finished difference Result 4510 states and 5869 transitions. [2024-11-22 04:04:41,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:41,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-22 04:04:41,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:41,361 INFO L225 Difference]: With dead ends: 4510 [2024-11-22 04:04:41,361 INFO L226 Difference]: Without dead ends: 4386 [2024-11-22 04:04:41,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:41,365 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 182 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:41,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 448 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:41,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2024-11-22 04:04:41,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4386. [2024-11-22 04:04:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 3403 states have (on average 1.2826917425800763) internal successors, (4365), 3451 states have internal predecessors, (4365), 487 states have call successors, (487), 405 states have call predecessors, (487), 494 states have return successors, (836), 532 states have call predecessors, (836), 485 states have call successors, (836) [2024-11-22 04:04:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 5688 transitions. [2024-11-22 04:04:41,547 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 5688 transitions. Word has length 68 [2024-11-22 04:04:41,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:41,549 INFO L471 AbstractCegarLoop]: Abstraction has 4386 states and 5688 transitions. [2024-11-22 04:04:41,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:41,549 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 5688 transitions. [2024-11-22 04:04:41,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:04:41,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:41,550 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:41,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:04:41,551 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:41,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:41,553 INFO L85 PathProgramCache]: Analyzing trace with hash 484941694, now seen corresponding path program 1 times [2024-11-22 04:04:41,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:41,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463650462] [2024-11-22 04:04:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:41,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:41,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:41,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:41,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463650462] [2024-11-22 04:04:41,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463650462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:41,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:41,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:41,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287032018] [2024-11-22 04:04:41,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:41,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:41,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:41,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:41,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:41,635 INFO L87 Difference]: Start difference. First operand 4386 states and 5688 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:42,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:42,090 INFO L93 Difference]: Finished difference Result 4634 states and 6052 transitions. [2024-11-22 04:04:42,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:42,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-22 04:04:42,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:42,111 INFO L225 Difference]: With dead ends: 4634 [2024-11-22 04:04:42,111 INFO L226 Difference]: Without dead ends: 4514 [2024-11-22 04:04:42,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:42,115 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 471 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:42,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 665 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:04:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4514 states. [2024-11-22 04:04:42,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4514 to 4505. [2024-11-22 04:04:42,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4505 states, 3504 states have (on average 1.28824200913242) internal successors, (4514), 3553 states have internal predecessors, (4514), 498 states have call successors, (498), 411 states have call predecessors, (498), 501 states have return successors, (848), 543 states have call predecessors, (848), 496 states have call successors, (848) [2024-11-22 04:04:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 5860 transitions. [2024-11-22 04:04:42,403 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 5860 transitions. Word has length 68 [2024-11-22 04:04:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:42,403 INFO L471 AbstractCegarLoop]: Abstraction has 4505 states and 5860 transitions. [2024-11-22 04:04:42,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 5860 transitions. [2024-11-22 04:04:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:04:42,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:42,405 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:42,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:04:42,406 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:42,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:42,406 INFO L85 PathProgramCache]: Analyzing trace with hash 2012275714, now seen corresponding path program 1 times [2024-11-22 04:04:42,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:42,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995706450] [2024-11-22 04:04:42,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:42,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:42,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:42,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995706450] [2024-11-22 04:04:42,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995706450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:42,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:42,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:42,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314132840] [2024-11-22 04:04:42,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:42,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:42,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:42,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:42,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:42,498 INFO L87 Difference]: Start difference. First operand 4505 states and 5860 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:43,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:43,130 INFO L93 Difference]: Finished difference Result 4889 states and 6421 transitions. [2024-11-22 04:04:43,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:43,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-22 04:04:43,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:43,150 INFO L225 Difference]: With dead ends: 4889 [2024-11-22 04:04:43,150 INFO L226 Difference]: Without dead ends: 4650 [2024-11-22 04:04:43,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:43,153 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 461 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:43,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1133 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:43,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2024-11-22 04:04:43,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4617. [2024-11-22 04:04:43,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4617 states, 3598 states have (on average 1.292106725958866) internal successors, (4649), 3648 states have internal predecessors, (4649), 509 states have call successors, (509), 417 states have call predecessors, (509), 508 states have return successors, (862), 555 states have call predecessors, (862), 507 states have call successors, (862) [2024-11-22 04:04:43,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 6020 transitions. [2024-11-22 04:04:43,444 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 6020 transitions. Word has length 68 [2024-11-22 04:04:43,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:43,444 INFO L471 AbstractCegarLoop]: Abstraction has 4617 states and 6020 transitions. [2024-11-22 04:04:43,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 6020 transitions. [2024-11-22 04:04:43,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:04:43,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:43,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:43,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:04:43,446 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:43,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1406672576, now seen corresponding path program 1 times [2024-11-22 04:04:43,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:43,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106302201] [2024-11-22 04:04:43,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:43,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:43,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106302201] [2024-11-22 04:04:43,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106302201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:43,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:43,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111688117] [2024-11-22 04:04:43,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:43,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:43,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:43,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:43,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:43,519 INFO L87 Difference]: Start difference. First operand 4617 states and 6020 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:43,935 INFO L93 Difference]: Finished difference Result 4988 states and 6562 transitions. [2024-11-22 04:04:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:43,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-22 04:04:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:43,956 INFO L225 Difference]: With dead ends: 4988 [2024-11-22 04:04:43,957 INFO L226 Difference]: Without dead ends: 4637 [2024-11-22 04:04:43,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:43,961 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 389 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:43,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 504 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:43,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2024-11-22 04:04:44,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4617. [2024-11-22 04:04:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4617 states, 3598 states have (on average 1.2912729294052252) internal successors, (4646), 3648 states have internal predecessors, (4646), 509 states have call successors, (509), 417 states have call predecessors, (509), 508 states have return successors, (862), 555 states have call predecessors, (862), 507 states have call successors, (862) [2024-11-22 04:04:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 6017 transitions. [2024-11-22 04:04:44,352 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 6017 transitions. Word has length 68 [2024-11-22 04:04:44,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:44,353 INFO L471 AbstractCegarLoop]: Abstraction has 4617 states and 6017 transitions. [2024-11-22 04:04:44,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 6017 transitions. [2024-11-22 04:04:44,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:04:44,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:44,355 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:44,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 04:04:44,355 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:44,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:44,356 INFO L85 PathProgramCache]: Analyzing trace with hash 131667454, now seen corresponding path program 1 times [2024-11-22 04:04:44,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:44,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950145267] [2024-11-22 04:04:44,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:44,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:44,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:44,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:44,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950145267] [2024-11-22 04:04:44,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950145267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:44,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:44,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:44,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415602973] [2024-11-22 04:04:44,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:44,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:44,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:44,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:44,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:44,440 INFO L87 Difference]: Start difference. First operand 4617 states and 6017 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:45,157 INFO L93 Difference]: Finished difference Result 5241 states and 6912 transitions. [2024-11-22 04:04:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:45,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-22 04:04:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:45,178 INFO L225 Difference]: With dead ends: 5241 [2024-11-22 04:04:45,179 INFO L226 Difference]: Without dead ends: 4890 [2024-11-22 04:04:45,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:45,182 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 488 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:45,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1067 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:45,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2024-11-22 04:04:45,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4828. [2024-11-22 04:04:45,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4828 states, 3773 states have (on average 1.2968460111317255) internal successors, (4893), 3827 states have internal predecessors, (4893), 529 states have call successors, (529), 429 states have call predecessors, (529), 524 states have return successors, (894), 577 states have call predecessors, (894), 527 states have call successors, (894) [2024-11-22 04:04:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4828 states to 4828 states and 6316 transitions. [2024-11-22 04:04:45,513 INFO L78 Accepts]: Start accepts. Automaton has 4828 states and 6316 transitions. Word has length 68 [2024-11-22 04:04:45,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:45,514 INFO L471 AbstractCegarLoop]: Abstraction has 4828 states and 6316 transitions. [2024-11-22 04:04:45,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:45,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4828 states and 6316 transitions. [2024-11-22 04:04:45,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:04:45,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:45,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:45,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:04:45,515 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:45,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:45,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1896918656, now seen corresponding path program 1 times [2024-11-22 04:04:45,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:45,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174721527] [2024-11-22 04:04:45,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:45,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:45,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:45,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174721527] [2024-11-22 04:04:45,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174721527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:45,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:45,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:45,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298798226] [2024-11-22 04:04:45,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:45,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:45,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:45,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:45,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:45,589 INFO L87 Difference]: Start difference. First operand 4828 states and 6316 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:46,206 INFO L93 Difference]: Finished difference Result 5880 states and 7823 transitions. [2024-11-22 04:04:46,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:46,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2024-11-22 04:04:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:46,226 INFO L225 Difference]: With dead ends: 5880 [2024-11-22 04:04:46,227 INFO L226 Difference]: Without dead ends: 5318 [2024-11-22 04:04:46,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:46,232 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 443 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:46,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1059 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5318 states. [2024-11-22 04:04:46,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5318 to 5263. [2024-11-22 04:04:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 4132 states have (on average 1.3061471442400774) internal successors, (5397), 4200 states have internal predecessors, (5397), 567 states have call successors, (567), 453 states have call predecessors, (567), 562 states have return successors, (980), 619 states have call predecessors, (980), 565 states have call successors, (980) [2024-11-22 04:04:46,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 6944 transitions. [2024-11-22 04:04:46,552 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 6944 transitions. Word has length 68 [2024-11-22 04:04:46,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:46,553 INFO L471 AbstractCegarLoop]: Abstraction has 5263 states and 6944 transitions. [2024-11-22 04:04:46,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 6944 transitions. [2024-11-22 04:04:46,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:04:46,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:46,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:46,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:04:46,556 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:46,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:46,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1916968382, now seen corresponding path program 1 times [2024-11-22 04:04:46,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:46,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662989029] [2024-11-22 04:04:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:46,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:46,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:46,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662989029] [2024-11-22 04:04:46,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662989029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:46,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:46,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431758818] [2024-11-22 04:04:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:46,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:46,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:46,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:46,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:46,603 INFO L87 Difference]: Start difference. First operand 5263 states and 6944 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:47,008 INFO L93 Difference]: Finished difference Result 6286 states and 8446 transitions. [2024-11-22 04:04:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:04:47,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 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 68 [2024-11-22 04:04:47,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:47,034 INFO L225 Difference]: With dead ends: 6286 [2024-11-22 04:04:47,034 INFO L226 Difference]: Without dead ends: 5290 [2024-11-22 04:04:47,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:47,041 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 0 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:47,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1250 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:47,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5290 states. [2024-11-22 04:04:47,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5290 to 5290. [2024-11-22 04:04:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 4159 states have (on average 1.3041596537629239) internal successors, (5424), 4227 states have internal predecessors, (5424), 567 states have call successors, (567), 453 states have call predecessors, (567), 562 states have return successors, (980), 619 states have call predecessors, (980), 565 states have call successors, (980) [2024-11-22 04:04:47,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 6971 transitions. [2024-11-22 04:04:47,570 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 6971 transitions. Word has length 68 [2024-11-22 04:04:47,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:47,571 INFO L471 AbstractCegarLoop]: Abstraction has 5290 states and 6971 transitions. [2024-11-22 04:04:47,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 6971 transitions. [2024-11-22 04:04:47,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 04:04:47,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:47,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:47,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:04:47,573 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:47,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:47,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1954352192, now seen corresponding path program 1 times [2024-11-22 04:04:47,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:47,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482520041] [2024-11-22 04:04:47,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:47,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:47,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:47,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:47,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482520041] [2024-11-22 04:04:47,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482520041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:47,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:47,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:47,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423365540] [2024-11-22 04:04:47,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:47,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:47,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:47,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:47,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:47,638 INFO L87 Difference]: Start difference. First operand 5290 states and 6971 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:48,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:48,250 INFO L93 Difference]: Finished difference Result 8957 states and 12337 transitions. [2024-11-22 04:04:48,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:48,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 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 68 [2024-11-22 04:04:48,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:48,274 INFO L225 Difference]: With dead ends: 8957 [2024-11-22 04:04:48,275 INFO L226 Difference]: Without dead ends: 7934 [2024-11-22 04:04:48,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:04:48,283 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 1011 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:48,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 958 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7934 states. [2024-11-22 04:04:48,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7934 to 7794. [2024-11-22 04:04:48,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7794 states, 6238 states have (on average 1.3348829753126001) internal successors, (8327), 6359 states have internal predecessors, (8327), 810 states have call successors, (810), 597 states have call predecessors, (810), 744 states have return successors, (1409), 847 states have call predecessors, (1409), 808 states have call successors, (1409) [2024-11-22 04:04:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7794 states to 7794 states and 10546 transitions. [2024-11-22 04:04:48,699 INFO L78 Accepts]: Start accepts. Automaton has 7794 states and 10546 transitions. Word has length 68 [2024-11-22 04:04:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:48,699 INFO L471 AbstractCegarLoop]: Abstraction has 7794 states and 10546 transitions. [2024-11-22 04:04:48,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:04:48,700 INFO L276 IsEmpty]: Start isEmpty. Operand 7794 states and 10546 transitions. [2024-11-22 04:04:48,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 04:04:48,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:48,701 INFO L215 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] [2024-11-22 04:04:48,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:04:48,702 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:48,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:48,702 INFO L85 PathProgramCache]: Analyzing trace with hash -414287811, now seen corresponding path program 1 times [2024-11-22 04:04:48,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:48,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979267994] [2024-11-22 04:04:48,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:48,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:48,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:48,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979267994] [2024-11-22 04:04:48,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979267994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:48,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:48,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:04:48,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98327630] [2024-11-22 04:04:48,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:48,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:04:48,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:48,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:04:48,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:04:48,755 INFO L87 Difference]: Start difference. First operand 7794 states and 10546 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:04:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:49,251 INFO L93 Difference]: Finished difference Result 8601 states and 11542 transitions. [2024-11-22 04:04:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:49,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 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 [2024-11-22 04:04:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:49,281 INFO L225 Difference]: With dead ends: 8601 [2024-11-22 04:04:49,281 INFO L226 Difference]: Without dead ends: 8598 [2024-11-22 04:04:49,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:49,288 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 577 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:49,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 421 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:04:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8598 states. [2024-11-22 04:04:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8598 to 8530. [2024-11-22 04:04:49,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8530 states, 6801 states have (on average 1.3258344361123364) internal successors, (9017), 6931 states have internal predecessors, (9017), 894 states have call successors, (894), 673 states have call predecessors, (894), 833 states have return successors, (1543), 935 states have call predecessors, (1543), 893 states have call successors, (1543) [2024-11-22 04:04:49,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8530 states to 8530 states and 11454 transitions. [2024-11-22 04:04:49,845 INFO L78 Accepts]: Start accepts. Automaton has 8530 states and 11454 transitions. Word has length 73 [2024-11-22 04:04:49,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:49,845 INFO L471 AbstractCegarLoop]: Abstraction has 8530 states and 11454 transitions. [2024-11-22 04:04:49,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:04:49,846 INFO L276 IsEmpty]: Start isEmpty. Operand 8530 states and 11454 transitions. [2024-11-22 04:04:49,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 04:04:49,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:49,850 INFO L215 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] [2024-11-22 04:04:49,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:04:49,850 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:49,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:49,850 INFO L85 PathProgramCache]: Analyzing trace with hash 41276828, now seen corresponding path program 1 times [2024-11-22 04:04:49,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:49,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45441461] [2024-11-22 04:04:49,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:49,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:49,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:49,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45441461] [2024-11-22 04:04:49,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45441461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:04:49,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015007919] [2024-11-22 04:04:49,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:49,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:04:49,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:04:49,944 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) [2024-11-22 04:04:49,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 04:04:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:50,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:04:50,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:04:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:50,276 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:04:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:50,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015007919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:04:50,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:04:50,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-22 04:04:50,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105560900] [2024-11-22 04:04:50,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:04:50,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:04:50,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:50,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:04:50,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:04:50,361 INFO L87 Difference]: Start difference. First operand 8530 states and 11454 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 04:04:51,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:51,910 INFO L93 Difference]: Finished difference Result 14309 states and 18802 transitions. [2024-11-22 04:04:51,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:04:51,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 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 [2024-11-22 04:04:51,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:51,962 INFO L225 Difference]: With dead ends: 14309 [2024-11-22 04:04:51,962 INFO L226 Difference]: Without dead ends: 14306 [2024-11-22 04:04:51,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:04:51,971 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 692 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:51,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 1533 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14306 states. [2024-11-22 04:04:52,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14306 to 13371. [2024-11-22 04:04:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 10548 states have (on average 1.3051763367463025) internal successors, (13767), 10728 states have internal predecessors, (13767), 1422 states have call successors, (1422), 1127 states have call predecessors, (1422), 1399 states have return successors, (2458), 1525 states have call predecessors, (2458), 1421 states have call successors, (2458) [2024-11-22 04:04:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 17647 transitions. [2024-11-22 04:04:52,967 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 17647 transitions. Word has length 74 [2024-11-22 04:04:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:52,968 INFO L471 AbstractCegarLoop]: Abstraction has 13371 states and 17647 transitions. [2024-11-22 04:04:52,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-22 04:04:52,968 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 17647 transitions. [2024-11-22 04:04:52,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 04:04:52,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:52,971 INFO L215 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] [2024-11-22 04:04:52,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 04:04:53,171 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,SelfDestructingSolverStorable16 [2024-11-22 04:04:53,173 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:53,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:53,173 INFO L85 PathProgramCache]: Analyzing trace with hash 421040765, now seen corresponding path program 2 times [2024-11-22 04:04:53,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:53,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032237904] [2024-11-22 04:04:53,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:04:53,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:53,185 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 04:04:53,185 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:04:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 04:04:53,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:53,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032237904] [2024-11-22 04:04:53,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032237904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:53,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:53,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:53,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063934043] [2024-11-22 04:04:53,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:53,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:53,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:53,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:53,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:53,200 INFO L87 Difference]: Start difference. First operand 13371 states and 17647 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:04:53,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:53,809 INFO L93 Difference]: Finished difference Result 18115 states and 23803 transitions. [2024-11-22 04:04:53,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:53,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 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 [2024-11-22 04:04:53,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:53,837 INFO L225 Difference]: With dead ends: 18115 [2024-11-22 04:04:53,837 INFO L226 Difference]: Without dead ends: 8605 [2024-11-22 04:04:53,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:53,857 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 286 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:53,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 506 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:53,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8605 states. [2024-11-22 04:04:54,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8605 to 8557. [2024-11-22 04:04:54,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8557 states, 6867 states have (on average 1.309159749526722) internal successors, (8990), 6983 states have internal predecessors, (8990), 878 states have call successors, (878), 659 states have call predecessors, (878), 810 states have return successors, (1440), 924 states have call predecessors, (1440), 877 states have call successors, (1440) [2024-11-22 04:04:54,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8557 states to 8557 states and 11308 transitions. [2024-11-22 04:04:54,391 INFO L78 Accepts]: Start accepts. Automaton has 8557 states and 11308 transitions. Word has length 77 [2024-11-22 04:04:54,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:54,392 INFO L471 AbstractCegarLoop]: Abstraction has 8557 states and 11308 transitions. [2024-11-22 04:04:54,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 04:04:54,392 INFO L276 IsEmpty]: Start isEmpty. Operand 8557 states and 11308 transitions. [2024-11-22 04:04:54,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 04:04:54,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:54,395 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:54,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:04:54,395 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:54,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:54,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1154122510, now seen corresponding path program 1 times [2024-11-22 04:04:54,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:54,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211007048] [2024-11-22 04:04:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:54,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:54,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 04:04:54,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:54,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211007048] [2024-11-22 04:04:54,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211007048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:54,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:54,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:54,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282415232] [2024-11-22 04:04:54,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:54,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:54,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:54,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:54,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:54,479 INFO L87 Difference]: Start difference. First operand 8557 states and 11308 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:04:55,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:55,837 INFO L93 Difference]: Finished difference Result 18961 states and 24370 transitions. [2024-11-22 04:04:55,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 04:04:55,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 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 84 [2024-11-22 04:04:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:55,889 INFO L225 Difference]: With dead ends: 18961 [2024-11-22 04:04:55,890 INFO L226 Difference]: Without dead ends: 13959 [2024-11-22 04:04:55,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-22 04:04:55,907 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 584 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:55,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1024 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:04:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13959 states. [2024-11-22 04:04:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13959 to 13390. [2024-11-22 04:04:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13390 states, 10583 states have (on average 1.2679769441557214) internal successors, (13419), 10775 states have internal predecessors, (13419), 1411 states have call successors, (1411), 1115 states have call predecessors, (1411), 1394 states have return successors, (2440), 1511 states have call predecessors, (2440), 1410 states have call successors, (2440) [2024-11-22 04:04:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13390 states to 13390 states and 17270 transitions. [2024-11-22 04:04:57,284 INFO L78 Accepts]: Start accepts. Automaton has 13390 states and 17270 transitions. Word has length 84 [2024-11-22 04:04:57,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:57,285 INFO L471 AbstractCegarLoop]: Abstraction has 13390 states and 17270 transitions. [2024-11-22 04:04:57,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:04:57,285 INFO L276 IsEmpty]: Start isEmpty. Operand 13390 states and 17270 transitions. [2024-11-22 04:04:57,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 04:04:57,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:57,297 INFO L215 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] [2024-11-22 04:04:57,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:04:57,297 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:57,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:57,298 INFO L85 PathProgramCache]: Analyzing trace with hash 569840795, now seen corresponding path program 1 times [2024-11-22 04:04:57,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:57,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514190419] [2024-11-22 04:04:57,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:57,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:57,391 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 04:04:57,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:57,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514190419] [2024-11-22 04:04:57,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514190419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:57,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:57,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:04:57,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261288357] [2024-11-22 04:04:57,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:57,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:04:57,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:57,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:04:57,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:04:57,393 INFO L87 Difference]: Start difference. First operand 13390 states and 17270 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:04:59,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:59,161 INFO L93 Difference]: Finished difference Result 22576 states and 28663 transitions. [2024-11-22 04:04:59,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 04:04:59,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-22 04:04:59,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:59,202 INFO L225 Difference]: With dead ends: 22576 [2024-11-22 04:04:59,202 INFO L226 Difference]: Without dead ends: 13965 [2024-11-22 04:04:59,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:04:59,222 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1110 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:59,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 1079 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:04:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13965 states. [2024-11-22 04:05:00,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13965 to 13390. [2024-11-22 04:05:00,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13390 states, 10583 states have (on average 1.2562600396862893) internal successors, (13295), 10775 states have internal predecessors, (13295), 1411 states have call successors, (1411), 1115 states have call predecessors, (1411), 1394 states have return successors, (2318), 1511 states have call predecessors, (2318), 1410 states have call successors, (2318) [2024-11-22 04:05:00,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13390 states to 13390 states and 17024 transitions. [2024-11-22 04:05:00,147 INFO L78 Accepts]: Start accepts. Automaton has 13390 states and 17024 transitions. Word has length 93 [2024-11-22 04:05:00,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:00,147 INFO L471 AbstractCegarLoop]: Abstraction has 13390 states and 17024 transitions. [2024-11-22 04:05:00,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:00,148 INFO L276 IsEmpty]: Start isEmpty. Operand 13390 states and 17024 transitions. [2024-11-22 04:05:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 04:05:00,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:00,157 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 04:05:00,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:05:00,158 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:00,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:00,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1151394772, now seen corresponding path program 1 times [2024-11-22 04:05:00,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:00,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889620759] [2024-11-22 04:05:00,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:00,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 04:05:00,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:00,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889620759] [2024-11-22 04:05:00,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889620759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:00,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709149003] [2024-11-22 04:05:00,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:00,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:00,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:00,206 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) [2024-11-22 04:05:00,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 04:05:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:00,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:05:00,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 04:05:00,297 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:00,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709149003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:00,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:00,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:00,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710254644] [2024-11-22 04:05:00,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:00,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:00,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:00,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:00,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:00,301 INFO L87 Difference]: Start difference. First operand 13390 states and 17024 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 04:05:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:01,204 INFO L93 Difference]: Finished difference Result 17634 states and 23236 transitions. [2024-11-22 04:05:01,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:01,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2024-11-22 04:05:01,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:01,254 INFO L225 Difference]: With dead ends: 17634 [2024-11-22 04:05:01,254 INFO L226 Difference]: Without dead ends: 14431 [2024-11-22 04:05:01,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:01,272 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 144 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:01,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 767 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:01,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14431 states. [2024-11-22 04:05:02,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14431 to 14431. [2024-11-22 04:05:02,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 11457 states have (on average 1.2654272497163306) internal successors, (14498), 11661 states have internal predecessors, (14498), 1506 states have call successors, (1506), 1175 states have call predecessors, (1506), 1466 states have return successors, (2490), 1606 states have call predecessors, (2490), 1505 states have call successors, (2490) [2024-11-22 04:05:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 18494 transitions. [2024-11-22 04:05:02,310 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 18494 transitions. Word has length 111 [2024-11-22 04:05:02,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:02,311 INFO L471 AbstractCegarLoop]: Abstraction has 14431 states and 18494 transitions. [2024-11-22 04:05:02,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 04:05:02,311 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 18494 transitions. [2024-11-22 04:05:02,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:05:02,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:02,325 INFO L215 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] [2024-11-22 04:05:02,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 04:05:02,528 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,SelfDestructingSolverStorable20 [2024-11-22 04:05:02,529 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:02,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:02,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1259834336, now seen corresponding path program 1 times [2024-11-22 04:05:02,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:02,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100009777] [2024-11-22 04:05:02,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:02,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:02,644 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 04:05:02,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:02,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100009777] [2024-11-22 04:05:02,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100009777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:02,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49915443] [2024-11-22 04:05:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:02,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:02,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:02,646 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) [2024-11-22 04:05:02,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 04:05:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:02,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 04:05:02,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:02,779 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 04:05:02,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:02,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49915443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:02,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:02,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-22 04:05:02,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267211466] [2024-11-22 04:05:02,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:02,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:02,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:02,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:02,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 04:05:02,781 INFO L87 Difference]: Start difference. First operand 14431 states and 18494 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) [2024-11-22 04:05:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:03,290 INFO L93 Difference]: Finished difference Result 18786 states and 23755 transitions. [2024-11-22 04:05:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:05:03,291 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 [2024-11-22 04:05:03,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:03,324 INFO L225 Difference]: With dead ends: 18786 [2024-11-22 04:05:03,325 INFO L226 Difference]: Without dead ends: 8959 [2024-11-22 04:05:03,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 04:05:03,350 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 0 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1551 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 [2024-11-22 04:05:03,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1551 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:03,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8959 states. [2024-11-22 04:05:03,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8959 to 8757. [2024-11-22 04:05:03,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8757 states, 7141 states have (on average 1.2964570788404985) internal successors, (9258), 7264 states have internal predecessors, (9258), 841 states have call successors, (841), 591 states have call predecessors, (841), 773 states have return successors, (1415), 909 states have call predecessors, (1415), 840 states have call successors, (1415) [2024-11-22 04:05:03,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8757 states to 8757 states and 11514 transitions. [2024-11-22 04:05:03,899 INFO L78 Accepts]: Start accepts. Automaton has 8757 states and 11514 transitions. Word has length 145 [2024-11-22 04:05:03,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:03,900 INFO L471 AbstractCegarLoop]: Abstraction has 8757 states and 11514 transitions. [2024-11-22 04:05:03,900 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) [2024-11-22 04:05:03,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8757 states and 11514 transitions. [2024-11-22 04:05:03,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-22 04:05:03,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:03,912 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:03,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:04,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:04,113 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:04,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash 481462785, now seen corresponding path program 1 times [2024-11-22 04:05:04,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:04,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263385312] [2024-11-22 04:05:04,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:04,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-22 04:05:04,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:04,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263385312] [2024-11-22 04:05:04,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263385312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:04,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84475923] [2024-11-22 04:05:04,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:04,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:04,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:04,163 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) [2024-11-22 04:05:04,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 04:05:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:04,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:05:04,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:04,336 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 04:05:04,339 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:04,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84475923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:04,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:04,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 04:05:04,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044269601] [2024-11-22 04:05:04,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:04,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:04,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:04,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:04,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:04,340 INFO L87 Difference]: Start difference. First operand 8757 states and 11514 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:05:05,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:05,346 INFO L93 Difference]: Finished difference Result 17638 states and 24327 transitions. [2024-11-22 04:05:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:05,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 144 [2024-11-22 04:05:05,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:05,413 INFO L225 Difference]: With dead ends: 17638 [2024-11-22 04:05:05,414 INFO L226 Difference]: Without dead ends: 13070 [2024-11-22 04:05:05,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:05,430 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 226 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:05,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 473 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:05,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13070 states. [2024-11-22 04:05:06,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13070 to 12982. [2024-11-22 04:05:06,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12982 states, 10677 states have (on average 1.326870843870001) internal successors, (14167), 10885 states have internal predecessors, (14167), 1215 states have call successors, (1215), 836 states have call predecessors, (1215), 1088 states have return successors, (2062), 1268 states have call predecessors, (2062), 1214 states have call successors, (2062) [2024-11-22 04:05:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12982 states to 12982 states and 17444 transitions. [2024-11-22 04:05:06,185 INFO L78 Accepts]: Start accepts. Automaton has 12982 states and 17444 transitions. Word has length 144 [2024-11-22 04:05:06,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:06,185 INFO L471 AbstractCegarLoop]: Abstraction has 12982 states and 17444 transitions. [2024-11-22 04:05:06,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:05:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 12982 states and 17444 transitions. [2024-11-22 04:05:06,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 04:05:06,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:06,200 INFO L215 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, 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] [2024-11-22 04:05:06,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:06,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:06,401 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:06,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1497787716, now seen corresponding path program 1 times [2024-11-22 04:05:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391296045] [2024-11-22 04:05:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-22 04:05:06,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:06,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391296045] [2024-11-22 04:05:06,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391296045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:06,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:06,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:06,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383043296] [2024-11-22 04:05:06,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:06,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:06,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:06,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:06,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:06,435 INFO L87 Difference]: Start difference. First operand 12982 states and 17444 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 04:05:07,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:07,068 INFO L93 Difference]: Finished difference Result 14613 states and 19366 transitions. [2024-11-22 04:05:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:07,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 159 [2024-11-22 04:05:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:07,101 INFO L225 Difference]: With dead ends: 14613 [2024-11-22 04:05:07,101 INFO L226 Difference]: Without dead ends: 10598 [2024-11-22 04:05:07,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:07,110 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 275 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:07,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 417 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10598 states. [2024-11-22 04:05:07,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 10362. [2024-11-22 04:05:07,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10362 states, 8606 states have (on average 1.3588194283058332) internal successors, (11694), 8791 states have internal predecessors, (11694), 952 states have call successors, (952), 621 states have call predecessors, (952), 802 states have return successors, (1624), 957 states have call predecessors, (1624), 951 states have call successors, (1624) [2024-11-22 04:05:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10362 states to 10362 states and 14270 transitions. [2024-11-22 04:05:07,702 INFO L78 Accepts]: Start accepts. Automaton has 10362 states and 14270 transitions. Word has length 159 [2024-11-22 04:05:07,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:07,703 INFO L471 AbstractCegarLoop]: Abstraction has 10362 states and 14270 transitions. [2024-11-22 04:05:07,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 04:05:07,703 INFO L276 IsEmpty]: Start isEmpty. Operand 10362 states and 14270 transitions. [2024-11-22 04:05:07,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 04:05:07,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:07,716 INFO L215 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] [2024-11-22 04:05:07,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:05:07,717 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:07,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:07,717 INFO L85 PathProgramCache]: Analyzing trace with hash 283963097, now seen corresponding path program 1 times [2024-11-22 04:05:07,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:07,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139423203] [2024-11-22 04:05:07,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:07,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:07,790 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-22 04:05:07,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:07,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139423203] [2024-11-22 04:05:07,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139423203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:07,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:07,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:07,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064511388] [2024-11-22 04:05:07,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:07,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:07,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:07,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:07,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:07,792 INFO L87 Difference]: Start difference. First operand 10362 states and 14270 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 04:05:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:08,568 INFO L93 Difference]: Finished difference Result 11880 states and 16072 transitions. [2024-11-22 04:05:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:05:08,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 3 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 [2024-11-22 04:05:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:08,602 INFO L225 Difference]: With dead ends: 11880 [2024-11-22 04:05:08,602 INFO L226 Difference]: Without dead ends: 10579 [2024-11-22 04:05:08,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:05:08,609 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 157 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:08,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 703 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:05:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2024-11-22 04:05:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 10506. [2024-11-22 04:05:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10506 states, 8719 states have (on average 1.3558894368620256) internal successors, (11822), 8909 states have internal predecessors, (11822), 968 states have call successors, (968), 637 states have call predecessors, (968), 817 states have return successors, (1645), 967 states have call predecessors, (1645), 967 states have call successors, (1645) [2024-11-22 04:05:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10506 states to 10506 states and 14435 transitions. [2024-11-22 04:05:09,310 INFO L78 Accepts]: Start accepts. Automaton has 10506 states and 14435 transitions. Word has length 159 [2024-11-22 04:05:09,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:09,310 INFO L471 AbstractCegarLoop]: Abstraction has 10506 states and 14435 transitions. [2024-11-22 04:05:09,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 04:05:09,310 INFO L276 IsEmpty]: Start isEmpty. Operand 10506 states and 14435 transitions. [2024-11-22 04:05:09,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 04:05:09,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:09,322 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:09,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 04:05:09,322 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:09,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:09,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1019008747, now seen corresponding path program 1 times [2024-11-22 04:05:09,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:09,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124817813] [2024-11-22 04:05:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:09,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-22 04:05:09,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:09,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124817813] [2024-11-22 04:05:09,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124817813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:09,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766314702] [2024-11-22 04:05:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:09,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:09,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:09,473 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:09,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 04:05:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:09,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 04:05:09,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 04:05:09,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:09,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766314702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:09,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:09,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-22 04:05:09,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339440102] [2024-11-22 04:05:09,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:09,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:05:09,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:09,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:05:09,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:05:09,664 INFO L87 Difference]: Start difference. First operand 10506 states and 14435 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 04:05:10,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:10,414 INFO L93 Difference]: Finished difference Result 13176 states and 17626 transitions. [2024-11-22 04:05:10,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:10,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 162 [2024-11-22 04:05:10,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:10,449 INFO L225 Difference]: With dead ends: 13176 [2024-11-22 04:05:10,450 INFO L226 Difference]: Without dead ends: 11365 [2024-11-22 04:05:10,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-22 04:05:10,460 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 176 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:10,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 509 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:10,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2024-11-22 04:05:11,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 11335. [2024-11-22 04:05:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11335 states, 9404 states have (on average 1.337515950659294) internal successors, (12578), 9600 states have internal predecessors, (12578), 1038 states have call successors, (1038), 689 states have call predecessors, (1038), 891 states have return successors, (1757), 1053 states have call predecessors, (1757), 1037 states have call successors, (1757) [2024-11-22 04:05:11,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11335 states to 11335 states and 15373 transitions. [2024-11-22 04:05:11,140 INFO L78 Accepts]: Start accepts. Automaton has 11335 states and 15373 transitions. Word has length 162 [2024-11-22 04:05:11,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:11,141 INFO L471 AbstractCegarLoop]: Abstraction has 11335 states and 15373 transitions. [2024-11-22 04:05:11,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 04:05:11,141 INFO L276 IsEmpty]: Start isEmpty. Operand 11335 states and 15373 transitions. [2024-11-22 04:05:11,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 04:05:11,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:11,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:11,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:11,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 04:05:11,354 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:11,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:11,354 INFO L85 PathProgramCache]: Analyzing trace with hash -2001290546, now seen corresponding path program 1 times [2024-11-22 04:05:11,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:11,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515666104] [2024-11-22 04:05:11,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:11,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:11,398 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-22 04:05:11,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:11,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515666104] [2024-11-22 04:05:11,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515666104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:11,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820799424] [2024-11-22 04:05:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:11,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:11,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:11,401 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:11,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 04:05:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:11,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:05:11,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:11,557 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 04:05:11,558 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:11,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820799424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:11,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:11,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:11,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235110580] [2024-11-22 04:05:11,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:11,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:11,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:11,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:11,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:11,560 INFO L87 Difference]: Start difference. First operand 11335 states and 15373 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 04:05:12,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:12,175 INFO L93 Difference]: Finished difference Result 19617 states and 27315 transitions. [2024-11-22 04:05:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:12,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 162 [2024-11-22 04:05:12,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:12,210 INFO L225 Difference]: With dead ends: 19617 [2024-11-22 04:05:12,210 INFO L226 Difference]: Without dead ends: 10825 [2024-11-22 04:05:12,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:12,227 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 243 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:12,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:12,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10825 states. [2024-11-22 04:05:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10825 to 10825. [2024-11-22 04:05:12,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10825 states, 9040 states have (on average 1.3007743362831858) internal successors, (11759), 9203 states have internal predecessors, (11759), 927 states have call successors, (927), 672 states have call predecessors, (927), 856 states have return successors, (1512), 957 states have call predecessors, (1512), 926 states have call successors, (1512) [2024-11-22 04:05:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10825 states to 10825 states and 14198 transitions. [2024-11-22 04:05:12,891 INFO L78 Accepts]: Start accepts. Automaton has 10825 states and 14198 transitions. Word has length 162 [2024-11-22 04:05:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:12,892 INFO L471 AbstractCegarLoop]: Abstraction has 10825 states and 14198 transitions. [2024-11-22 04:05:12,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 04:05:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 10825 states and 14198 transitions. [2024-11-22 04:05:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 04:05:12,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:12,902 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:12,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:13,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-22 04:05:13,102 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:13,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:13,103 INFO L85 PathProgramCache]: Analyzing trace with hash -439529483, now seen corresponding path program 1 times [2024-11-22 04:05:13,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:13,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233824768] [2024-11-22 04:05:13,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:13,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-22 04:05:13,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:13,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233824768] [2024-11-22 04:05:13,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233824768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:13,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299235370] [2024-11-22 04:05:13,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:13,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:13,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:13,150 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:13,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 04:05:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:13,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 04:05:13,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-22 04:05:13,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:13,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299235370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:13,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:13,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:13,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152212549] [2024-11-22 04:05:13,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:13,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:13,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:13,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:13,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:13,256 INFO L87 Difference]: Start difference. First operand 10825 states and 14198 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 04:05:13,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:13,897 INFO L93 Difference]: Finished difference Result 19788 states and 26313 transitions. [2024-11-22 04:05:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:13,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 162 [2024-11-22 04:05:13,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:13,936 INFO L225 Difference]: With dead ends: 19788 [2024-11-22 04:05:13,936 INFO L226 Difference]: Without dead ends: 11506 [2024-11-22 04:05:13,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:13,956 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 284 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:13,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 480 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11506 states. [2024-11-22 04:05:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11506 to 11506. [2024-11-22 04:05:14,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11506 states, 9665 states have (on average 1.2778065183652354) internal successors, (12350), 9828 states have internal predecessors, (12350), 936 states have call successors, (936), 716 states have call predecessors, (936), 903 states have return successors, (1527), 969 states have call predecessors, (1527), 935 states have call successors, (1527) [2024-11-22 04:05:14,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11506 states to 11506 states and 14813 transitions. [2024-11-22 04:05:14,710 INFO L78 Accepts]: Start accepts. Automaton has 11506 states and 14813 transitions. Word has length 162 [2024-11-22 04:05:14,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:14,710 INFO L471 AbstractCegarLoop]: Abstraction has 11506 states and 14813 transitions. [2024-11-22 04:05:14,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 04:05:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 11506 states and 14813 transitions. [2024-11-22 04:05:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 04:05:14,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:14,723 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:14,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 04:05:14,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:14,923 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:14,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:14,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1324128520, now seen corresponding path program 1 times [2024-11-22 04:05:14,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:14,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356796716] [2024-11-22 04:05:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:14,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-22 04:05:14,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:14,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356796716] [2024-11-22 04:05:14,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356796716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:14,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572126262] [2024-11-22 04:05:14,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:14,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:14,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:14,978 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:14,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 04:05:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:15,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:05:15,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 04:05:15,090 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:15,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572126262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:15,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:15,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:15,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648194660] [2024-11-22 04:05:15,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:15,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:15,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:15,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:15,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:15,092 INFO L87 Difference]: Start difference. First operand 11506 states and 14813 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 04:05:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:16,044 INFO L93 Difference]: Finished difference Result 27806 states and 36719 transitions. [2024-11-22 04:05:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:16,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 163 [2024-11-22 04:05:16,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:16,111 INFO L225 Difference]: With dead ends: 27806 [2024-11-22 04:05:16,112 INFO L226 Difference]: Without dead ends: 18843 [2024-11-22 04:05:16,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:16,138 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 142 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:16,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 766 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:16,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18843 states. [2024-11-22 04:05:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18843 to 18841. [2024-11-22 04:05:17,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18841 states, 15812 states have (on average 1.2861750569187957) internal successors, (20337), 16113 states have internal predecessors, (20337), 1555 states have call successors, (1555), 1160 states have call predecessors, (1555), 1472 states have return successors, (2815), 1583 states have call predecessors, (2815), 1554 states have call successors, (2815) [2024-11-22 04:05:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18841 states to 18841 states and 24707 transitions. [2024-11-22 04:05:17,397 INFO L78 Accepts]: Start accepts. Automaton has 18841 states and 24707 transitions. Word has length 163 [2024-11-22 04:05:17,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:17,398 INFO L471 AbstractCegarLoop]: Abstraction has 18841 states and 24707 transitions. [2024-11-22 04:05:17,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 04:05:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 18841 states and 24707 transitions. [2024-11-22 04:05:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 04:05:17,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:17,414 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:17,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 04:05:17,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-22 04:05:17,619 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:17,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:17,621 INFO L85 PathProgramCache]: Analyzing trace with hash 102304100, now seen corresponding path program 1 times [2024-11-22 04:05:17,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:17,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254805731] [2024-11-22 04:05:17,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:17,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 04:05:17,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:17,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254805731] [2024-11-22 04:05:17,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254805731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:17,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897831534] [2024-11-22 04:05:17,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:17,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:17,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:17,670 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:17,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 04:05:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:17,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 04:05:17,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:05:17,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:17,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897831534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:17,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:17,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:17,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816123503] [2024-11-22 04:05:17,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:17,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:17,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:17,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:17,787 INFO L87 Difference]: Start difference. First operand 18841 states and 24707 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 04:05:19,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:19,564 INFO L93 Difference]: Finished difference Result 50680 states and 68135 transitions. [2024-11-22 04:05:19,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:19,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 164 [2024-11-22 04:05:19,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:19,673 INFO L225 Difference]: With dead ends: 50680 [2024-11-22 04:05:19,673 INFO L226 Difference]: Without dead ends: 34386 [2024-11-22 04:05:19,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:19,716 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 269 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:19,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 503 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34386 states. [2024-11-22 04:05:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34386 to 34182. [2024-11-22 04:05:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34182 states, 28725 states have (on average 1.2854656222802436) internal successors, (36925), 29302 states have internal predecessors, (36925), 2803 states have call successors, (2803), 2096 states have call predecessors, (2803), 2652 states have return successors, (6132), 2815 states have call predecessors, (6132), 2802 states have call successors, (6132) [2024-11-22 04:05:21,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34182 states to 34182 states and 45860 transitions. [2024-11-22 04:05:21,852 INFO L78 Accepts]: Start accepts. Automaton has 34182 states and 45860 transitions. Word has length 164 [2024-11-22 04:05:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:21,852 INFO L471 AbstractCegarLoop]: Abstraction has 34182 states and 45860 transitions. [2024-11-22 04:05:21,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 04:05:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 34182 states and 45860 transitions. [2024-11-22 04:05:21,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 04:05:21,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:21,889 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:21,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:22,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:22,091 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:22,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:22,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2028534310, now seen corresponding path program 1 times [2024-11-22 04:05:22,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:22,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042447850] [2024-11-22 04:05:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-22 04:05:22,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:22,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042447850] [2024-11-22 04:05:22,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042447850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:22,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:22,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:22,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790640423] [2024-11-22 04:05:22,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:22,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:22,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:22,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:22,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:22,120 INFO L87 Difference]: Start difference. First operand 34182 states and 45860 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:23,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:23,764 INFO L93 Difference]: Finished difference Result 58843 states and 79235 transitions. [2024-11-22 04:05:23,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:23,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 164 [2024-11-22 04:05:23,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:23,860 INFO L225 Difference]: With dead ends: 58843 [2024-11-22 04:05:23,860 INFO L226 Difference]: Without dead ends: 27206 [2024-11-22 04:05:23,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:23,927 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 177 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:23,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 436 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27206 states. [2024-11-22 04:05:25,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27206 to 27206. [2024-11-22 04:05:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27206 states, 22869 states have (on average 1.2851895579168306) internal successors, (29391), 23318 states have internal predecessors, (29391), 2227 states have call successors, (2227), 1668 states have call predecessors, (2227), 2108 states have return successors, (4706), 2235 states have call predecessors, (4706), 2226 states have call successors, (4706) [2024-11-22 04:05:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27206 states to 27206 states and 36324 transitions. [2024-11-22 04:05:26,069 INFO L78 Accepts]: Start accepts. Automaton has 27206 states and 36324 transitions. Word has length 164 [2024-11-22 04:05:26,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:26,070 INFO L471 AbstractCegarLoop]: Abstraction has 27206 states and 36324 transitions. [2024-11-22 04:05:26,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:26,070 INFO L276 IsEmpty]: Start isEmpty. Operand 27206 states and 36324 transitions. [2024-11-22 04:05:26,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 04:05:26,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:26,101 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:26,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 04:05:26,101 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:26,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:26,101 INFO L85 PathProgramCache]: Analyzing trace with hash -288771068, now seen corresponding path program 1 times [2024-11-22 04:05:26,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:26,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588192304] [2024-11-22 04:05:26,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:26,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:26,159 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-22 04:05:26,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:26,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588192304] [2024-11-22 04:05:26,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588192304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:26,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494349265] [2024-11-22 04:05:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:26,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:26,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:26,163 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:26,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 04:05:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:26,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 04:05:26,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:26,294 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 04:05:26,294 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:26,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494349265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:26,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:26,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:26,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519580571] [2024-11-22 04:05:26,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:26,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:26,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:26,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:26,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:26,296 INFO L87 Difference]: Start difference. First operand 27206 states and 36324 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 04:05:27,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:27,912 INFO L93 Difference]: Finished difference Result 43709 states and 60527 transitions. [2024-11-22 04:05:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:27,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 168 [2024-11-22 04:05:27,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:28,004 INFO L225 Difference]: With dead ends: 43709 [2024-11-22 04:05:28,004 INFO L226 Difference]: Without dead ends: 27290 [2024-11-22 04:05:28,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:28,047 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 131 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:28,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 713 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27290 states. [2024-11-22 04:05:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27290 to 27206. [2024-11-22 04:05:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27206 states, 22869 states have (on average 1.267042721588176) internal successors, (28976), 23318 states have internal predecessors, (28976), 2227 states have call successors, (2227), 1668 states have call predecessors, (2227), 2108 states have return successors, (4706), 2235 states have call predecessors, (4706), 2226 states have call successors, (4706) [2024-11-22 04:05:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27206 states to 27206 states and 35909 transitions. [2024-11-22 04:05:29,943 INFO L78 Accepts]: Start accepts. Automaton has 27206 states and 35909 transitions. Word has length 168 [2024-11-22 04:05:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:29,943 INFO L471 AbstractCegarLoop]: Abstraction has 27206 states and 35909 transitions. [2024-11-22 04:05:29,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 04:05:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 27206 states and 35909 transitions. [2024-11-22 04:05:29,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 04:05:29,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:29,971 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:29,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:30,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-22 04:05:30,171 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:30,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:30,172 INFO L85 PathProgramCache]: Analyzing trace with hash -22015068, now seen corresponding path program 1 times [2024-11-22 04:05:30,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:30,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320509995] [2024-11-22 04:05:30,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:30,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:30,215 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-22 04:05:30,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:30,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320509995] [2024-11-22 04:05:30,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320509995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:30,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707569575] [2024-11-22 04:05:30,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:30,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:30,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:30,218 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:30,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 04:05:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:30,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:05:30,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:30,367 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 04:05:30,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:30,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707569575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:30,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:30,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:30,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792234091] [2024-11-22 04:05:30,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:30,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:30,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:30,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:30,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:30,371 INFO L87 Difference]: Start difference. First operand 27206 states and 35909 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 04:05:31,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:31,915 INFO L93 Difference]: Finished difference Result 47776 states and 65139 transitions. [2024-11-22 04:05:31,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:31,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 168 [2024-11-22 04:05:31,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:32,006 INFO L225 Difference]: With dead ends: 47776 [2024-11-22 04:05:32,006 INFO L226 Difference]: Without dead ends: 26423 [2024-11-22 04:05:32,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:32,054 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 255 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:32,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 337 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:32,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26423 states. [2024-11-22 04:05:34,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26423 to 25843. [2024-11-22 04:05:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25843 states, 21938 states have (on average 1.2315616738080044) internal successors, (27018), 22187 states have internal predecessors, (27018), 2071 states have call successors, (2071), 1586 states have call predecessors, (2071), 1832 states have return successors, (3771), 2077 states have call predecessors, (3771), 2070 states have call successors, (3771) [2024-11-22 04:05:34,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25843 states to 25843 states and 32860 transitions. [2024-11-22 04:05:34,176 INFO L78 Accepts]: Start accepts. Automaton has 25843 states and 32860 transitions. Word has length 168 [2024-11-22 04:05:34,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:34,176 INFO L471 AbstractCegarLoop]: Abstraction has 25843 states and 32860 transitions. [2024-11-22 04:05:34,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 04:05:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 25843 states and 32860 transitions. [2024-11-22 04:05:34,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 04:05:34,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:34,196 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:34,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 04:05:34,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-22 04:05:34,401 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:34,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:34,401 INFO L85 PathProgramCache]: Analyzing trace with hash -716431874, now seen corresponding path program 1 times [2024-11-22 04:05:34,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:34,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785481659] [2024-11-22 04:05:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:34,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-22 04:05:34,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:34,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785481659] [2024-11-22 04:05:34,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785481659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:34,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564559518] [2024-11-22 04:05:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:34,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:34,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:34,445 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:34,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 04:05:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:34,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 04:05:34,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-22 04:05:34,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:34,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564559518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:34,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:34,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-22 04:05:34,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449595359] [2024-11-22 04:05:34,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:34,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:34,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:34,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:34,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:34,612 INFO L87 Difference]: Start difference. First operand 25843 states and 32860 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 04:05:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:36,409 INFO L93 Difference]: Finished difference Result 49143 states and 63536 transitions. [2024-11-22 04:05:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:05:36,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 170 [2024-11-22 04:05:36,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:36,501 INFO L225 Difference]: With dead ends: 49143 [2024-11-22 04:05:36,501 INFO L226 Difference]: Without dead ends: 25843 [2024-11-22 04:05:36,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:36,540 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 346 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:36,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 460 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:36,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25843 states. [2024-11-22 04:05:38,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25843 to 25843. [2024-11-22 04:05:38,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25843 states, 21938 states have (on average 1.2051235299480354) internal successors, (26438), 22187 states have internal predecessors, (26438), 2071 states have call successors, (2071), 1586 states have call predecessors, (2071), 1832 states have return successors, (3771), 2077 states have call predecessors, (3771), 2070 states have call successors, (3771) [2024-11-22 04:05:38,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25843 states to 25843 states and 32280 transitions. [2024-11-22 04:05:38,303 INFO L78 Accepts]: Start accepts. Automaton has 25843 states and 32280 transitions. Word has length 170 [2024-11-22 04:05:38,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:38,304 INFO L471 AbstractCegarLoop]: Abstraction has 25843 states and 32280 transitions. [2024-11-22 04:05:38,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 04:05:38,304 INFO L276 IsEmpty]: Start isEmpty. Operand 25843 states and 32280 transitions. [2024-11-22 04:05:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 04:05:38,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:38,321 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:38,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-22 04:05:38,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-22 04:05:38,522 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:38,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1423028480, now seen corresponding path program 1 times [2024-11-22 04:05:38,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:38,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483049853] [2024-11-22 04:05:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:38,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-22 04:05:38,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:38,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483049853] [2024-11-22 04:05:38,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483049853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:38,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063106115] [2024-11-22 04:05:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:38,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:38,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:38,567 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:38,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 04:05:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:38,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 04:05:38,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-22 04:05:38,716 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:38,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063106115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:38,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:38,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-22 04:05:38,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735268361] [2024-11-22 04:05:38,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:38,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:38,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:38,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:38,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:38,720 INFO L87 Difference]: Start difference. First operand 25843 states and 32280 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 04:05:40,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:40,467 INFO L93 Difference]: Finished difference Result 47381 states and 60958 transitions. [2024-11-22 04:05:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:05:40,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 170 [2024-11-22 04:05:40,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:40,565 INFO L225 Difference]: With dead ends: 47381 [2024-11-22 04:05:40,566 INFO L226 Difference]: Without dead ends: 24783 [2024-11-22 04:05:40,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:05:40,606 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 374 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:40,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 454 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:40,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24783 states. [2024-11-22 04:05:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24783 to 23939. [2024-11-22 04:05:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23939 states, 20362 states have (on average 1.1725763677438366) internal successors, (23876), 20539 states have internal predecessors, (23876), 1923 states have call successors, (1923), 1478 states have call predecessors, (1923), 1652 states have return successors, (3414), 1925 states have call predecessors, (3414), 1922 states have call successors, (3414) [2024-11-22 04:05:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23939 states to 23939 states and 29213 transitions. [2024-11-22 04:05:42,152 INFO L78 Accepts]: Start accepts. Automaton has 23939 states and 29213 transitions. Word has length 170 [2024-11-22 04:05:42,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:42,152 INFO L471 AbstractCegarLoop]: Abstraction has 23939 states and 29213 transitions. [2024-11-22 04:05:42,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 04:05:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 23939 states and 29213 transitions. [2024-11-22 04:05:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 04:05:42,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:42,165 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:42,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 04:05:42,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-22 04:05:42,365 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:42,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash -561194878, now seen corresponding path program 1 times [2024-11-22 04:05:42,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:42,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73690646] [2024-11-22 04:05:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:42,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:42,406 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-22 04:05:42,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:42,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73690646] [2024-11-22 04:05:42,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73690646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:42,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185165271] [2024-11-22 04:05:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:42,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:42,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:42,410 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:42,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 04:05:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:42,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 04:05:42,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-22 04:05:42,552 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:42,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185165271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:42,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-22 04:05:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82913932] [2024-11-22 04:05:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:42,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:42,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:42,554 INFO L87 Difference]: Start difference. First operand 23939 states and 29213 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 04:05:44,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:44,217 INFO L93 Difference]: Finished difference Result 32745 states and 40325 transitions. [2024-11-22 04:05:44,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:05:44,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 170 [2024-11-22 04:05:44,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:44,298 INFO L225 Difference]: With dead ends: 32745 [2024-11-22 04:05:44,298 INFO L226 Difference]: Without dead ends: 18686 [2024-11-22 04:05:44,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:05:44,329 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 337 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:44,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 446 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:44,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18686 states. [2024-11-22 04:05:45,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18686 to 18686. [2024-11-22 04:05:45,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18686 states, 15891 states have (on average 1.1556856082059026) internal successors, (18365), 15992 states have internal predecessors, (18365), 1519 states have call successors, (1519), 1166 states have call predecessors, (1519), 1274 states have return successors, (2632), 1529 states have call predecessors, (2632), 1518 states have call successors, (2632) [2024-11-22 04:05:45,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18686 states to 18686 states and 22516 transitions. [2024-11-22 04:05:45,782 INFO L78 Accepts]: Start accepts. Automaton has 18686 states and 22516 transitions. Word has length 170 [2024-11-22 04:05:45,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:45,783 INFO L471 AbstractCegarLoop]: Abstraction has 18686 states and 22516 transitions. [2024-11-22 04:05:45,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 04:05:45,783 INFO L276 IsEmpty]: Start isEmpty. Operand 18686 states and 22516 transitions. [2024-11-22 04:05:45,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 04:05:45,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:45,791 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:45,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:45,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:45,992 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:45,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:45,993 INFO L85 PathProgramCache]: Analyzing trace with hash -990853184, now seen corresponding path program 1 times [2024-11-22 04:05:45,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:45,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092812732] [2024-11-22 04:05:45,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:45,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:46,066 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-22 04:05:46,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:46,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092812732] [2024-11-22 04:05:46,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092812732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:46,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113015336] [2024-11-22 04:05:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:46,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:46,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:46,070 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:46,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 04:05:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:46,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 04:05:46,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-22 04:05:46,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:46,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113015336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:46,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:46,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 04:05:46,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901298355] [2024-11-22 04:05:46,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:46,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:46,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:46,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:46,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:46,192 INFO L87 Difference]: Start difference. First operand 18686 states and 22516 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:05:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:47,227 INFO L93 Difference]: Finished difference Result 29136 states and 35694 transitions. [2024-11-22 04:05:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:47,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 170 [2024-11-22 04:05:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:47,285 INFO L225 Difference]: With dead ends: 29136 [2024-11-22 04:05:47,285 INFO L226 Difference]: Without dead ends: 12992 [2024-11-22 04:05:47,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:47,315 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:47,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1174 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:47,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12992 states. [2024-11-22 04:05:47,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12992 to 9085. [2024-11-22 04:05:47,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9085 states, 7693 states have (on average 1.14272715455609) internal successors, (8791), 7753 states have internal predecessors, (8791), 736 states have call successors, (736), 564 states have call predecessors, (736), 654 states have return successors, (1062), 768 states have call predecessors, (1062), 735 states have call successors, (1062) [2024-11-22 04:05:47,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9085 states to 9085 states and 10589 transitions. [2024-11-22 04:05:48,017 INFO L78 Accepts]: Start accepts. Automaton has 9085 states and 10589 transitions. Word has length 170 [2024-11-22 04:05:48,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:48,017 INFO L471 AbstractCegarLoop]: Abstraction has 9085 states and 10589 transitions. [2024-11-22 04:05:48,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 04:05:48,018 INFO L276 IsEmpty]: Start isEmpty. Operand 9085 states and 10589 transitions. [2024-11-22 04:05:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-22 04:05:48,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:48,023 INFO L215 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, 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] [2024-11-22 04:05:48,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-22 04:05:48,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-22 04:05:48,223 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:48,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:48,224 INFO L85 PathProgramCache]: Analyzing trace with hash -493206263, now seen corresponding path program 1 times [2024-11-22 04:05:48,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:48,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901086513] [2024-11-22 04:05:48,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:48,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-22 04:05:48,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:48,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901086513] [2024-11-22 04:05:48,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901086513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:48,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386286123] [2024-11-22 04:05:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:48,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:48,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:48,279 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:48,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 04:05:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:48,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 04:05:48,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-22 04:05:48,387 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:48,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386286123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:48,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:48,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-22 04:05:48,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183930986] [2024-11-22 04:05:48,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:48,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:48,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:48,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:48,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:48,390 INFO L87 Difference]: Start difference. First operand 9085 states and 10589 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-22 04:05:49,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:49,248 INFO L93 Difference]: Finished difference Result 11538 states and 13431 transitions. [2024-11-22 04:05:49,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:05:49,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 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 [2024-11-22 04:05:49,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:49,287 INFO L225 Difference]: With dead ends: 11538 [2024-11-22 04:05:49,288 INFO L226 Difference]: Without dead ends: 8857 [2024-11-22 04:05:49,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-22 04:05:49,292 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 360 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:49,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 475 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:49,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8857 states. [2024-11-22 04:05:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8857 to 8595. [2024-11-22 04:05:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8595 states, 7305 states have (on average 1.1425051334702259) internal successors, (8346), 7358 states have internal predecessors, (8346), 686 states have call successors, (686), 520 states have call predecessors, (686), 602 states have return successors, (978), 717 states have call predecessors, (978), 685 states have call successors, (978) [2024-11-22 04:05:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8595 states to 8595 states and 10010 transitions. [2024-11-22 04:05:49,934 INFO L78 Accepts]: Start accepts. Automaton has 8595 states and 10010 transitions. Word has length 179 [2024-11-22 04:05:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:49,934 INFO L471 AbstractCegarLoop]: Abstraction has 8595 states and 10010 transitions. [2024-11-22 04:05:49,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-22 04:05:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand 8595 states and 10010 transitions. [2024-11-22 04:05:49,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 04:05:49,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:49,940 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:49,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-22 04:05:50,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-22 04:05:50,142 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:50,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash -269726104, now seen corresponding path program 1 times [2024-11-22 04:05:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488686242] [2024-11-22 04:05:50,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:50,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-22 04:05:50,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:50,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488686242] [2024-11-22 04:05:50,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488686242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:50,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291838493] [2024-11-22 04:05:50,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:50,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:50,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:50,209 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:50,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 04:05:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:50,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:05:50,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 04:05:50,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:50,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291838493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:50,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:50,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:50,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579177556] [2024-11-22 04:05:50,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:50,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:50,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:50,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:50,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:50,325 INFO L87 Difference]: Start difference. First operand 8595 states and 10010 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 04:05:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:50,906 INFO L93 Difference]: Finished difference Result 14136 states and 16528 transitions. [2024-11-22 04:05:50,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:50,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 204 [2024-11-22 04:05:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:50,963 INFO L225 Difference]: With dead ends: 14136 [2024-11-22 04:05:50,963 INFO L226 Difference]: Without dead ends: 8597 [2024-11-22 04:05:50,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:50,977 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 124 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:50,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 705 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:50,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8597 states. [2024-11-22 04:05:51,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8597 to 8595. [2024-11-22 04:05:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8595 states, 7305 states have (on average 1.1388090349075974) internal successors, (8319), 7358 states have internal predecessors, (8319), 686 states have call successors, (686), 520 states have call predecessors, (686), 602 states have return successors, (960), 717 states have call predecessors, (960), 685 states have call successors, (960) [2024-11-22 04:05:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8595 states to 8595 states and 9965 transitions. [2024-11-22 04:05:51,688 INFO L78 Accepts]: Start accepts. Automaton has 8595 states and 9965 transitions. Word has length 204 [2024-11-22 04:05:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:51,688 INFO L471 AbstractCegarLoop]: Abstraction has 8595 states and 9965 transitions. [2024-11-22 04:05:51,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 04:05:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8595 states and 9965 transitions. [2024-11-22 04:05:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-22 04:05:51,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:51,694 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:51,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:51,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-22 04:05:51,895 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:51,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:51,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2018099904, now seen corresponding path program 1 times [2024-11-22 04:05:51,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:51,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475330433] [2024-11-22 04:05:51,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:51,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-22 04:05:51,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475330433] [2024-11-22 04:05:51,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475330433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198114288] [2024-11-22 04:05:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:51,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:51,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:51,948 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:51,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 04:05:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:52,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 04:05:52,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 04:05:52,107 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:52,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198114288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:52,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:52,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:05:52,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556980223] [2024-11-22 04:05:52,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:52,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:52,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:52,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:52,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:52,109 INFO L87 Difference]: Start difference. First operand 8595 states and 9965 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 04:05:52,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:52,746 INFO L93 Difference]: Finished difference Result 14078 states and 16690 transitions. [2024-11-22 04:05:52,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:52,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 206 [2024-11-22 04:05:52,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:52,791 INFO L225 Difference]: With dead ends: 14078 [2024-11-22 04:05:52,791 INFO L226 Difference]: Without dead ends: 8539 [2024-11-22 04:05:52,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:52,801 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 91 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:52,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 646 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:52,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8539 states. [2024-11-22 04:05:53,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8539 to 8495. [2024-11-22 04:05:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8495 states, 7213 states have (on average 1.1190905309857202) internal successors, (8072), 7262 states have internal predecessors, (8072), 686 states have call successors, (686), 520 states have call predecessors, (686), 594 states have return successors, (948), 713 states have call predecessors, (948), 685 states have call successors, (948) [2024-11-22 04:05:53,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8495 states to 8495 states and 9706 transitions. [2024-11-22 04:05:53,456 INFO L78 Accepts]: Start accepts. Automaton has 8495 states and 9706 transitions. Word has length 206 [2024-11-22 04:05:53,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:53,456 INFO L471 AbstractCegarLoop]: Abstraction has 8495 states and 9706 transitions. [2024-11-22 04:05:53,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 04:05:53,456 INFO L276 IsEmpty]: Start isEmpty. Operand 8495 states and 9706 transitions. [2024-11-22 04:05:53,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-22 04:05:53,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:53,461 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:53,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:53,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-22 04:05:53,662 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:53,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:53,662 INFO L85 PathProgramCache]: Analyzing trace with hash 747877876, now seen corresponding path program 1 times [2024-11-22 04:05:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:53,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146538693] [2024-11-22 04:05:53,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:53,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-22 04:05:53,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:53,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146538693] [2024-11-22 04:05:53,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146538693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:53,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936694288] [2024-11-22 04:05:53,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:53,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:53,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:53,713 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:53,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 04:05:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:53,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 04:05:53,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 95 proven. 70 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 04:05:53,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:05:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 04:05:53,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936694288] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:53,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 04:05:53,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2024-11-22 04:05:53,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659572850] [2024-11-22 04:05:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:53,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:53,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:53,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:53,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:53,975 INFO L87 Difference]: Start difference. First operand 8495 states and 9706 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-22 04:05:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:55,309 INFO L93 Difference]: Finished difference Result 21916 states and 24949 transitions. [2024-11-22 04:05:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:55,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 208 [2024-11-22 04:05:55,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:55,378 INFO L225 Difference]: With dead ends: 21916 [2024-11-22 04:05:55,379 INFO L226 Difference]: Without dead ends: 18438 [2024-11-22 04:05:55,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:55,394 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 530 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:55,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 1508 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:05:55,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18438 states. [2024-11-22 04:05:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18438 to 16136. [2024-11-22 04:05:56,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16136 states, 13764 states have (on average 1.1140656785818077) internal successors, (15334), 13853 states have internal predecessors, (15334), 1290 states have call successors, (1290), 950 states have call predecessors, (1290), 1080 states have return successors, (1726), 1333 states have call predecessors, (1726), 1289 states have call successors, (1726) [2024-11-22 04:05:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16136 states to 16136 states and 18350 transitions. [2024-11-22 04:05:56,709 INFO L78 Accepts]: Start accepts. Automaton has 16136 states and 18350 transitions. Word has length 208 [2024-11-22 04:05:56,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:56,709 INFO L471 AbstractCegarLoop]: Abstraction has 16136 states and 18350 transitions. [2024-11-22 04:05:56,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-22 04:05:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 16136 states and 18350 transitions. [2024-11-22 04:05:56,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-22 04:05:56,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:56,717 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 04:05:56,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-22 04:05:56,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:56,918 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:56,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:56,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2086099629, now seen corresponding path program 1 times [2024-11-22 04:05:56,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:56,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762151482] [2024-11-22 04:05:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:56,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 66 proven. 7 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-22 04:05:56,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:56,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762151482] [2024-11-22 04:05:56,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762151482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:56,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611260728] [2024-11-22 04:05:56,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:56,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:56,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:56,973 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:05:56,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 04:05:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:57,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 04:05:57,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-22 04:05:57,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:57,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611260728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:57,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:57,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-22 04:05:57,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655670648] [2024-11-22 04:05:57,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:57,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:05:57,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:57,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:05:57,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:05:57,118 INFO L87 Difference]: Start difference. First operand 16136 states and 18350 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 3 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 04:05:58,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:58,524 INFO L93 Difference]: Finished difference Result 18478 states and 21057 transitions. [2024-11-22 04:05:58,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:58,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 3 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 253 [2024-11-22 04:05:58,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:58,585 INFO L225 Difference]: With dead ends: 18478 [2024-11-22 04:05:58,585 INFO L226 Difference]: Without dead ends: 16538 [2024-11-22 04:05:58,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:05:58,591 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 313 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:58,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 463 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:05:58,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16538 states. [2024-11-22 04:05:59,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16538 to 16528. [2024-11-22 04:05:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16528 states, 14062 states have (on average 1.113568482434931) internal successors, (15659), 14165 states have internal predecessors, (15659), 1331 states have call successors, (1331), 985 states have call predecessors, (1331), 1133 states have return successors, (1782), 1378 states have call predecessors, (1782), 1330 states have call successors, (1782) [2024-11-22 04:05:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16528 states to 16528 states and 18772 transitions. [2024-11-22 04:05:59,909 INFO L78 Accepts]: Start accepts. Automaton has 16528 states and 18772 transitions. Word has length 253 [2024-11-22 04:05:59,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:59,910 INFO L471 AbstractCegarLoop]: Abstraction has 16528 states and 18772 transitions. [2024-11-22 04:05:59,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 3 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 04:05:59,910 INFO L276 IsEmpty]: Start isEmpty. Operand 16528 states and 18772 transitions. [2024-11-22 04:05:59,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-22 04:05:59,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:59,920 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 04:05:59,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-22 04:06:00,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-22 04:06:00,120 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:00,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:00,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1118748975, now seen corresponding path program 1 times [2024-11-22 04:06:00,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:00,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717161787] [2024-11-22 04:06:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:00,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 66 proven. 7 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-22 04:06:00,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:00,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717161787] [2024-11-22 04:06:00,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717161787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:00,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440315658] [2024-11-22 04:06:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:00,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:00,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:00,181 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 04:06:00,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 04:06:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:00,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 04:06:00,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 256 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 04:06:00,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:06:00,521 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 107 proven. 7 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-22 04:06:00,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440315658] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:06:00,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:06:00,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-22 04:06:00,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786246253] [2024-11-22 04:06:00,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:06:00,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 04:06:00,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:00,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 04:06:00,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:06:00,523 INFO L87 Difference]: Start difference. First operand 16528 states and 18772 transitions. Second operand has 9 states, 9 states have (on average 23.666666666666668) internal successors, (213), 8 states have internal predecessors, (213), 4 states have call successors, (38), 6 states have call predecessors, (38), 8 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37)